File: RELEASE_NOTES.txt

package info (click to toggle)
httpcomponents-client 4.5.7-1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 7,492 kB
  • sloc: java: 76,159; xml: 4,123; sh: 10; makefile: 2
file content (2400 lines) | stat: -rw-r--r-- 99,838 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
Release 4.5.7
-------------------

This is a maintenance release that corrects Automatic-Module-Name definitions added in the previous
release and fixes a number of minor defects discovered since 4.5.6.

Please note that as of 4.4, HttpClient requires Java 1.6 or newer.

Changelog:
-------------------

* Upgraded HttpCore to version 4.4.11
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* HTTPCLIENT-1960: URIBuilder incorrect handling of multiple leading slashes in path component
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* HTTPCLIENT-1958: PoolingHttpClientConnectionManager to throw ExecutionException in case of a lease operation
  cancellation instead of InterruptedException.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* HTTPCLIENT-1952: Allow default User Agent to be disabled.
  Contributed by Michael Osipov <michaelo at apache.org>

* HTTPCLIENT-1956: CONNECT overwrites the main request object in the HTTP context when requests are executed
  via a proxy tunnel.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* HTTPCLIENT-1940: deprecated SSLSocketFactory made to rethrow SocketTimeoutException as
  ConnectTimeoutException for consistency with non-deprecated code.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* Fixed regression in BasicCookieStore serialization.
  Contributed by Author: Mark Mielke <mmielke at ciena.com>

* HTTPCLIENT-1929: Corrected Automatic-Module-Name entries for HttpClient Fluent, HttpClient Windows
  and HttpClient Cache.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* HTTPCLIENT-1927: URLEncodedUtils#parse breaks at double quotes when parsing unquoted values.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* HTTPCLIENT-1939: Update Apache Commons Codec from 1.10 to 1.11
  Contributed by Gary Gregory <ggregory at apache.org>


Release 4.5.6
-------------------

This is a maintenance release that adds Automatic-Module-Name to the manifest for compatibility
with Java 9 Platform Module System and fixes a number of issues discovered since 4.5.5

Please note that as of 4.4, HttpClient requires Java 1.6 or newer.

Changelog:
-------------------

* [HTTPCLIENT-1882=: reset authentication state on I/O or runtime error for connection based
  authentication schemes (such as NTLM)
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1924]: HttpClient to shut down the connection manager if a fatal error occurs
  in the course of a request execution.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* Add Automatic-Module-Name in manifest so Java9 modular applications can depend on this library
  Contributed by Varun Nandi <varunkn at amazon.com>

* [HTTPCLIENT-1923]: fixed incorrect connection close on shutdown + fixed corresponding test
  Contributed by Aleksei Arsenev <aarseniev at yandex-team.ru>

* [HTTPCLIENT-1906]: certificates containing alternative subject names other than DNS and IP
  (such as RFC822) get rejected as invalid
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1904]: check cookie domain for null
  Contributed by Hans-Peter Keck <hans-peter.keck at haufe-lexware.com>

* [HTTPCLIENT-1900]: proxy protocol processor does not post-process CONNECT response messages
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1911]: Failing tests on Fedora 28 due to weak encryption algorithms in test
  keystore.
  Contributed by Gary Gregory <ggregory at apache.org> and Michael Simacek <msimacek at redhat dot com>


Release 4.5.5
-------------------

HttpClient 4.5.5 (GA) is a maintenance release that fixes a regression introduced
by the previous release causing a NPE in SystemDefaultCredentialsProvider.

Please note that as of 4.4, HttpClient requires Java 1.6 or newer.

Changelog:
-------------------

* [HTTPCLIENT-1690] Avoid merging Content-Encoding headers coming with 304 status to cache entry.
  Contributed by Sudheera Palihakkara <catchsudheera at gmail.com>

* [HTTPCLIENT-1888] Regression in SystemDefaultCredentialsProvider#getCredentials causing NPE.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1886] Update HttpClient 4.5.x from HttpCore 4.4.7 to 4.4.9
  Contributed by Gary Gregory <ggregory at apache.org>

* [HTTPCLIENT-1889] org.apache.http.client.utils.URLEncodedUtils.parse() 
  should return a new ArrayList when there are no query parameters.
  Contributed by Gary Gregory <ggregory at apache.org>


Release 4.5.4
-------------------

HttpClient 4.5.4 (GA) is a maintenance release that fixes a number of defects found since 4.5.3.

Please note that as of 4.4, HttpClient requires Java 1.6 or newer.

Changelog:
-------------------

* [HTTPCLIENT-1883] SystemDefaultCredentialsProvider to use https.proxy* system properties
  for origins with port 443.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1881] Allow truncated NTLM packets to work with this client.
  Contributed by Karl Wright <DaddyWri at gmail.com>

* [HTTPCLIENT-1855] Disabled caching of DIGEST auth scheme instances due to unreliability of nonce counter
  when the auth cache is shared by multiple sessions.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* BasicCookieStore uses a ReentrantReadWriteLock to avoid synchronization on #getCookies/#toString
  while maintaining thread safety.
  Contributed by Carter Kozak <c4kofony at gmail.com>

* [HTTPCLIENT-1865] DefaultServiceUnavailableRetryStrategy does not respect HttpEntity#isRepeatable.
  Contributed by Tomas Celaya <tjcelaya at joyent dot com>

* [HTTPCLIENT-1859] Encode Content-Disposition name and filename elements appropriately.
  Contributed by Karl Wright <DaddyWri at gmail.com>

* Avoid fetching the cached entity twice on cache hit.
  Contributed by Leandro Nunes <a-lnunes at hotels.com>

* [HTTPCLIENT-1835] #evictExpiredConnections no longer causes the #evictIdleConnections behaviour
  to be implicitly enabled.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1831= URIBuilder should not prepend a leading slash to relative URIs.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1833] Fix Windows Negotiate-NTLM handling of proxies.
  Contributed by Roman Stoffel <roman.stoffel at gamler.info>

* [HTTPCLIENT-1817] Add a "Trust All" TrustStrategy implementation.
  Contributed by Gary Gregory <ggregory at apache.org>

* [HTTPCLIENT-1816] Update Apache Commons Codec 1.9 to 1.10.
  Contributed by Gary Gregory <ggregory at apache.org>

* [HTTPCLIENT-1836] DefaultHostnameVerifier#getSubjectAltNames(X509Certificate) throws java.lang.ClassCastException.
  Contributed by Gary Gregory <ggregory at apache.org>, Ilian Iliev <ilian_iliev at yahoo.com>
  
* [HTTPCLIENT-1845]: Extract InputStreamFactory classes out of GzipDecompressingEntity and 
  DeflateDecompressingEntity for reuse and to create less garbage.
  Contributed by Gary Gregory <ggregory at apache.org>

* [HTTPCLIENT-1847] Update Ehcache from 2.6.9 to 2.6.11.
  Contributed by Gary Gregory <ggregory at apache.org>

* [HTTPCLIENT-1848] Update spymemcached from 2.11.4 to 2.12.3.
  Contributed by Gary Gregory <ggregory at apache.org>

* [HTTPCLIENT-1849] Update JNA from 4.1.0 to 4.4.0.
  Contributed by Gary Gregory <ggregory at apache.org>

* [HTTPCLIENT-1850] Update SLF4J from 1.7.6 to 1.7.25.
  Contributed by Gary Gregory <ggregory at apache.org>


Release 4.5.3
-------------------

HttpClient 4.5.3 (GA) is a maintenance release that fixes a number of defects found since 4.5.2.

Please note that as of 4.4, HttpClient requires Java 1.6 or newer.

Changelog:
-------------------

* [HTTPCLIENT-1803] Improved handling of malformed paths by URIBuilder.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1802] Do not attempt to match SSL host to subject CN if subject alternative name of any type are given.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1788] RFC 6265 policy must not reject cookies with paths that are no prefix of the uri path.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1792] SSLConnectionSocketFactory to throw SSLPeerUnverifiedException with a better error message
  when hostname verification fails.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1779] [OSGi] support NTLM proxy authentication.
  Contributed by Julian Sedding <jsedding@apache.org>

* [HTTPCLIENT-1773] [OSGi] HttpProxyConfigurationActivator does not unregister HttpClientBuilderFactory.
  Contributed by Julian Sedding <jsedding@apache.org>

* [HTTPCLIENT-1771] improve OSGi webconsole display for org.apache.http.proxyconfigurator.
  Contributed by Julian Sedding <jsedding at apache.org>

* [HTTPCLIENT-1770] OSGi metatype for org.apache.http.proxyconfigurator missing factoryPid.
  Contributed by Julian Sedding <jsedding at apache.org>

* [HTTPCLIENT-1767] Null pointer dereference in EofSensorInputStream and ResponseEntityProxy.
  Contributed by Peter Ansell <p_ansell@yahoo.com>

* Support changing system default ProxySelector.
  Contributed by Robin Stevens <stevensro at gmail.com>

* All services registered in the OSGi service registry provide the whole bundle header dictionary as vendor
  property value.
  Contributed by Christoph Fiehe <christoph.fiehe at materna.de>

* [HTTPCLIENT-1750] OSGi support for CachingHttpClientBuilder.
  Contributed by Justin Edelson <justin at justinedelson.com>

* [HTTPCLIENT-1749] OSGi client builder to use weak references to track HttpClient instances.
  Contributed by Justin Edelson <justin at justinedelson.com>

* [HTTPCLIENT-1747] apply RequestConfig defaults when using HttpParams values in backward compatibility mode.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* Override LaxRedirectStrategy's INSTANCE field.
  Contributed by Eric Wu <ericwuyi at gmail.com>

* [HTTPCLIENT-1736] do not request cred delegation by default when using Kerberos auth.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1744] normalize hostname and certificate CN when matching to CN.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1732] SystemDefaultCredentialsProvider to take http.proxyHost and http.proxyPort system
  properties into account.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* Revert "HTTPCLIENT-1712: SPNego schemes to take service scheme into account when generating auth token".
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1727] AbstractHttpClient#createClientConnectionManager does not account for context class loader.
  Contributed by Charles Allen <charles.allen at metamarkets.com>

* [HTTPCLIENT-1726:] Copy the SNI fix from SSLConnectionSocketFactory to the deprecated SSLSocketFactory class.
  Contributed by David Black <dblack at atlassian.com>


Release 4.5.2
-------------------

HttpClient 4.5.2 (GA) is a maintenance release that fixes a number of minor defects found since 4.5.1.

Please note that as of 4.4, HttpClient requires Java 1.6 or newer.

Changelog:
-------------------

* [HTTPCLIENT-1710, HTTPCLIENT-1718, HTTPCLEINT-1719] OSGi container compatibility improvements.
  Contributed by 212427891 <munene.kiruja at ge.com>

* [HTTPCLIENT-1717] Make fluent API Content#Content(byte[], ContentType) public.
  Contributed by Cash Costello <cash.costello at gmail.com>

* [HTTPCLIENT-1715] NTLMEngineImpl#Type1Message not thread safe but declared as a constant.
  Contributed by Olivier Lafontaine <olafontaine at gmail.com>, Gary Gregory <ggregory at apache.org>

* [HTTPCLIENT-1714] Add HttpClientBuilder#setDnsResolver(DnsResolver).
  Contributed by Alexis Thaveau <alexis.thaveau at gmail.com>

* [HTTPCLIENT-1712] SPNego schemes to take service scheme into account when generating auth token. 
   Contributed by Georg Romstorfer <georg.romstorfer at gmail.com>

* [HTTPCLIENT-1700] Netscape draft, browser compatibility, RFC 2109, RFC 2965 and default cookie 
  specs to ignore cookies with empty name for consistency with RFC 6265 specs.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1704] IgnoreSpec#match to always return false.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1550] Fixed 'deflate' zlib header check.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1698] Fixed matching of IPv6 addresses by DefaultHostnameVerifier
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1695] RFC 6265 compliant cookie spec to ignore cookies with empty name / missing 
  value.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1216] Removed ThreadLocal subclass from DateUtils.
  Contributed by Jochen Kemnade <jochen.kemnade at eddyson.de>

* [HTTPCLIENT-1685] PublicSuffixDomainFilter to ignore local hosts and local domains.
  Contributed by Oleg Kalnichevski <olegk at apache.org>



Release 4.5.1
-------------------

HttpClient 4.5.1 (GA) is a maintenance release that fixes a number of minor defects found since 4.5.

Please note that as of 4.4, HttpClient requires Java 1.6 or newer.

Changelog:
-------------------

* [HTTPCLIENT-1680] redirect of a POST request causes ClientProtocolException.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1673] org.apache.http.entity.mime.content.* missing from OSGi exports.
  Contributed by Benson Margulies <benson at basistech.com>

* [HTTPCLIENT-1668] Fluent request incorrectly handles connect timeout setting.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1667] RequestBuilder does not take charset into account when creating 
  UrlEncodedFormEntity. 
  Contributed by Sergey Smith <smithsv at bk.ru>

* [HTTPCLIENT-1655] HttpClient sends RST instead of FIN ACK sequence when using non-persistant 
  connections.
  Contributed by Oleg Kalnichevski <olegk at apache.org>



Release 4.5
-------------------

HttpClient 4.5 (GA) is a minor feature release that includes several incremental enhancements
to the exisitng functionality such as support for private domains in the Mozilla Public Suffix List.

Changelog:
-------------------

* Reduced default validate after inactivity setting from 5 sec to 2 sec
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1649] Fixed serialization of auth schemes
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1645]: Fluent requests to inherit config parameters of the executor.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1640]: RFC6265 lax cookie policy fails to parse 'max-age' attribute.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1633]: RFC6265CookieSpecProvider compatibility level setting has no effect.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1613]: Support for private domains in Mozilla Public Suffix List.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1651]: Add ability to disable content compression on a request basis
  Contributed by Michael Osipov <michaelo at apache.org>

* [HTTPCLIENT-1654]: Deprecate/remove RequestConfig#decompressionEnabled in favor of #contentCompressionEnabled
  Contributed by Michael Osipov <michaelo at apache.org>



Release 4.4.1
-------------------

HttpClient 4.4.1 (GA) is a maintenance release that fixes a number of defects in new functionality
introduced in version 4.4.

Users of HttpClient 4.4 are encouraged to upgrade.

Please note that as of 4.4, HttpClient requires Java 1.6 or newer.

Changelog:
-------------------

* Marked RFC 2109, RFC 2965, Netscape draft cookie specs as obsolete
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1633] RFC6265CookieSpecProvider compatibility level setting has no effect.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1628]: Auth cache can fail when domain name contains uppercase characters.
  Contributed by Dennis Ju <dejuknow at gmail.com>

* [HTTPCLIENT-1609] Stale connection check in PoolingHttpClientConnectionManager has no effect.
  Internal connection pool does not correctly implement connection validation.
  Contributed by Charles Lip <rene1 at singnet.com.sg>



Release 4.4 Final
-------------------

This is the first stable (GA) release of HttpClient 4.4. Notable features and enhancements included
in 4.4 series are:

* Support for the latest HTTP state management specification (RFC 6265). Please note that the old
cookie policy is still used by default for compatibility reasons. RFC 6265 compliant cookie
policies need to be explicitly configured by the user. Please also note that as of next feature
release support for Netscape draft, RFC 2109 and RFC 2965 cookie policies will be deprecated
and disabled by default. It is recommended to use RFC 6265 compliant policies for new applications
unless compatibility with RFC 2109 and RFC 2965 is required and to migrate existing applications
to the default cookie policy.

* Enhanced, redesigned and rewritten default SSL hostname verifier with improved RFC 2818
compliance

* Default SSL hostname verifier and default cookie policy now validate certificate identity
and cookie domain of origin against the public suffix list maintained by Mozilla.org
<https://publicsuffix.org/list>

* More efficient stale connection checking: indiscriminate connection checking which results
in approximately 20 to 50 ms overhead per request has been deprecated in favor of conditional
connection state validation (persistent connections are to be re-validated only if a specified
period inactivity has elapsed)

* Authentication cache thread-safety: authentication cache used by HttpClient is now thread-safe
and can be shared by multiple threads in order to re-use authentication state for subsequent
requests

* Native Windows Negotiate and NTLM via SSPI through JNA: when running on Windows OS HttpClient
configured to use native NTLM or SPNEGO authentication schemes can make use of platform specific
functionality via JNA and current user credentials. This functionality is still considered
experimental, known to have compatibility issues and subject to change without prior notice.
Use at your discretion.

This release also includes all fixes from the stable 4.3.x release branch.

Please note that as of 4.4, HttpClient requires Java 1.6 or newer.


Changelog:
-------------------

* Support for the latest HTTP state management specification (RFC 6265).
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1515] Caching of responses to HEAD requests
  Contributed by Tyrone Cutajar <tj.cutajar at gmail.com> and
  Francois-Xavier Bonnet <fx at apache.org>

* [HTTPCLIENT-1560] Native Windows auth improvements
  Contributed by Michael Osipov <michaelo at apache.org>

* Update Apache Commons Logging version from 1.1.3 to 1.2.
  Contributed by Gary Gregory <ggregory at apache.org>

* Update Apache Commons Codec version from 1.6 to 1.9.
  Contributed by Gary Gregory <ggregory at apache.org>

* Update Ehcache version from 2.2.0 to 2.6.9.
  Contributed by Gary Gregory <ggregory at apache.org>

* Update Ehcache version from 2.2.0 to 2.6.9.
  Contributed by Gary Gregory <ggregory at apache.org>

* Update Spymemcached version from 2.6 to 2.11.4.
  Contributed by Gary Gregory <ggregory at apache.org>

* Update SLF4J version from 1.5.11 to 1.7.7.
  Contributed by Gary Gregory <ggregory at apache.org>





Release 4.4 BETA1
-------------------

This is the first BETA release of HttpClient 4.4. Notable features and enhancements included
in 4.4 series are:

* Enhanced redesigned and rewritten default SSL hostname verifier with improved RFC 2818
compliance

* Default SSL hostname verifier and default cookie policy now validate certificate identity
and cookie domain of origin against the public suffix list maintained by Mozilla.org
<https://publicsuffix.org/list>

* Native windows Negotiate/NTLM via JNA: when running on Windows OS HttpClient configured to use
native NTLM or SPNEGO authentication schemes can make use of platform specific functionality
via JNA and current user system credentials

* More efficient stale connection checking: indiscriminate connection checking which results
in approximately 20 to 50 ms overhead per request has been deprecated in favor of conditional
connection state validation (persistent connections are to be re-validated only if a specified
period inactivity has elapsed)

* Authentication cache thread-safety: authentication caches used by HttpClient is now thread-safe
and can be shared by multiple threads in order to re-use authentication state for subsequent
requests

This release also includes all fixes from the stable 4.3.x release branch.

Please note that as of 4.4, HttpClient requires Java 1.6 or newer.


Changelog:
-------------------

* [HTTPCLIENT-1547] HttpClient OSGi bundle doesn't import the package "javax.naming".
  Contributed by Willem Jiang <ningjiang at apache.org>

* [HTTPCLIENT-1541] Use correct (HTTP/hostname) service principal name for Windows native
  Negotiate/NTLM auth schemes.
  Contributed by Ka-Lok Fung <ka-lok.fung at sap.com>

* Improved compliance with RFC 2818: default hostname verifier to ignore the common name of the
  certificate subject if alternative subject names (dNSName or iPAddress) are present.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1540] Support delegated credentials (ISC_REQ_DELEGATE) by Native windows
  native Negotiate/NTLM auth schemes.
  Contributed by Ka-Lok Fung <ka-lok.fung at sap.com>



Release 4.4 ALPHA1
-------------------

This is the first ALPHA release of HttpClient 4.4. Notable features and enhancements included
in the 4.4 branch are:

* More efficient stale connection checking: indiscriminate connection checking which results
in approximately 20 to 50 ms overhead per request has been deprecated in favor of conditional
connection state validation (persistent connections are to be re-validated only if a specified
period inactivity has elapsed)

* Native windows Negotiate/NTLM via JNA: when running on Windows OS HttpClient configured to use
native NTLM or SPNEGO authentication schemes can make use of platform specific functionality
via JNA and current user system credentials

* Authentication cache thread-safety: authentication caches used by HttpClient is now thread-safe
and can be shared by multiple threads in order to re-use authentication state for subsequent
requests

This release also includes all fixes from the stable 4.3.x release branch.

Please note that as of 4.4, HttpClient requires Java 1.6 or newer.

Please note that new features included in this release are still considered experimental and
their API may change in the future 4.4 alpha and beta releases.


Changelog:
-------------------

* [HTTPCLIENT-1493] Indiscriminate connection checking has been deprecated in favor of conditional
  connection state validation. Persistent connections are to be re-validated only after a defined
  period inactivity prior to being leased to the consumer.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1519] Use the original HttpHost instance passed as a parameter to
  HttpClient#execute when generating 'Host' request header.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1491] Enable provision of Service Principal Name in Windows native
  auth scheme.
  Contributed by Malcolm Smith <malcolmfsmith at gmail.com>

* [HTTPCLIENT-1403] Pluggable content decoders.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1466] FileBodyPart#generateContentType() ignores custom ContentType values.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1461] fixed performance degradation in gzip encoded content processing
  introduced by HTTPCLIENT-1432.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1457] Incorrect handling of Windows (NT) credentials by
  SystemDefaultCredentialsProvider.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1456] Request retrial after status 503 causes ClientProtocolException.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1454] Make connection operator APIs public.
  Contributed by Tamas Cservenak <tamas at cservenak.net>

* Update JUnit to version 4.11 from 4.9
  Contributed by Gary Gregory <ggregory at apache.org>



Release 4.3.4
-------------------

HttpClient 4.3.4 (GA) is a maintenance release that improves performance in high concurrency
scenarios. This version replaces dynamic proxies with custom proxy classes and eliminates thread
contention in java.reflect.Proxy.newInstance() when leasing connections from the connection pool
and processing response messages.


Changelog:
-------------------

* Replaced dynamic proxies with custom proxy classes to reduce thread contention.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1484] GzipCompressingEntity should not close the underlying output stream
  if the entity has not been fully written out due to an exception.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1474] Fixed broken entity enclosing requests in HC Fluent.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1470] CachingExec(ClientExecChain, HttpCache, CacheConfig, AsynchronousValidator)
  throws NPE if config is null




Release 4.3.3
-------------------

HttpClient 4.3.3 (GA) is a bug fix release that fixes a regression introduced by the previous
release causing a significant performance degradation in compressed content processing.

Users of HttpClient 4.3 are encouraged to upgrade.

Changelog:
-------------------

* [HTTPCLIENT-1466] FileBodyPart#generateContentType() ignores custom ContentType values.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1453] Thread safety regression in PoolingHttpClientConnectionManager
  #closeExpiredConnections that can lead to ConcurrentModificationException.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1461] fixed performance degradation in compressed content processing
  introduced by HTTPCLIENT-1432.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1457] Incorrect handling of Windows (NT) credentials by
  SystemDefaultCredentialsProvider.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1456] Request retrial after status 503 causes ClientProtocolException.
  Contributed by Oleg Kalnichevski <olegk at apache.org>


Release 4.3.2
-------------------

HttpClient 4.3.2 (GA) is a maintenance release that delivers a number of improvements
as well as bug fixes for issues reported since 4.3.1 release. SNI support for
Oracle JRE 1.7+ is being among the most notable improvements.

Users of HttpClient 4.3 are encouraged to upgrade.

Changelog:
-------------------

* [HTTPCLIENT-1447] Clients created with HttpClients.createMinimal do not work with absolute URIs
  Contributed by Joseph Walton <joe at kafsemo dot org>

* [HTTPCLIENT-1446] NTLM proxy + BASIC target auth fails with 'Unexpected state:
  MSG_TYPE3_GENERATED'.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1443] HttpCache uses the physical host instead of the virtual host as a cache key.
  Contributed by Francois-Xavier Bonnet <fx at apache.org>

* [HTTPCLIENT-1442] Authentication header set by the user gets removed in case
  of proxy authentication (affects plan HTTP requests only).
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1441] Caching AsynchronousValidationRequest leaks connections.
  Contributed by Dominic Tootell <dominic.tootell at gmail.com>

* [HTTPCLIENT-1440] 'file' scheme in redirect location URI causes NPE.
  Contributed by James Leigh <james at 3roundstones dot com>

* [HTTPCLIENT-1437] Made Executor#execute thread safe.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1119] SNI support (Oracle Java 1.7+ only).
  Contributed by Bruno Harbulot <bruno at distributedmatter.net>

* [HTTPCLIENT-1435] Fluent Executor ignores custom request properties.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1432] Lazy decompressing of HttpEntity#getContent() to avoid EOFException
  in case of an empty response with 'Content-Encoding: gzip' header.
  Contributed by Yihua Huang <code4crafter at gmail.com>

* [HTTPCLIENT-1431] (Regression) deprecated connection manager cannot be used with
  a custom LayeredSchemeSocketFactory.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1425] Fixed socket closed exception thrown by caching HttpClient when the origin
  server sends a long chunked response.
  Contributed by James Leigh <james at 3roundstones dot com>

* [HTTPCLIENT-1417] Fixed NPE in BrowserCompatSpec#formatCookies caused by version 1
  cookies with null cookie value.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1416] Fixed NPE in CachingHttpClientBuilder#build().
  Contributed by Oleg Kalnichevski <olegk at apache.org>



Release 4.3.1
-------------------

HttpClient 4.3.1 (GA) is a bug fix release that addresses a number of issues reported since
release 4.3.

Users of HttpClient 4.3 are strongly encouraged to upgrade.

Changelog
-------------------

* [HTTPCLIENT-1410] Browser compatible hostname verifier no longer rejects
  *.co.<countrycode>, *.gov.<countrycode>, *.info.<countrycode>, etc as invalid.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* Ensure X509HostnameVerifier is never null.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1405] CONNECT HTTP/1.1 requests lack mandatory 'Host' header.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1402] Cache default User-Agent value.
  Contributed by yuexiaojun <junedo at qq.com>

* [HTTPCLIENT-1398] Fixed invalid OSGi metadata caused by corrupted Maven bundle plugin metadata.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1399] Fixed NPE in RequestBuilder.
  Contributed by Oleg Kalnichevski <olegk at apache.org>




Release 4.3 Final
-------------------

This is the first stable (GA) release of HttpClient 4.3. The most notable enhancements included
in this release are:

* Support for Java 7 try-with-resources for resource management (connection release.)

* Added fluent Builder classes for HttpEntity, HttpRequest, HttpClient and SSLContext instances.

* Deprecation of preference and configuration API based on HttpParams interface in favor of
constructor injection and plain configuration objects.

* Reliance on object immutability instead of access synchronization for thread safety.
Several old classes whose instances can be shared by multiple request exchanges have
been replaced by immutable equivalents.

* DefaultHttpClient,  DecompressingHttpClient, CachingHttpClient and similar classes are
deprecated in favor of builder classes that produce immutable HttpClient instances.

* HttpClient builders now dynamically construct a request execution pipeline tailored
specifically to the user configuration by physically excluding unnecessary protocol components.

* There is now an option to construct a minimal HttpClient implementation that can only execute
basic HTTP message exchanges without redirects, authentication, state management or proxy support.
This feature might be of particular use in web crawler development.

* There is now option to avoid strict URI syntax for request URIs by executing HTTP requests
with an explicitly specified target host. HttpClient will no longer attempt to parse the request
URI if it does not need to extract the target host from it.

This release also includes all fixes from the stable 4.2.x release branch.


Changelog
-------------------
* [HTTPCLIENT-1371] Weak ETag Validation is Useful On PUT With If-Match
  Contributed by James Leigh <james at 3roundstones dot com>

* [HTTPCLIENT-1394] Support for Native windows Negotiate/NTLM via JNA
  Contributed by Ryan McKinley <ryan at apache.org>

* [HTTPCLIENT-1384] Expose CacheInvalidator interface.
  Contributed by Nicolas Richeton <nicolas.richeton at free.fr>

* [HTTPCLIENT-1385] Fixed path normalization in CacheKeyGenerator
  Contributed by James Leigh <james at 3roundstones dot com>

* [HTTPCLIENT-1370] Response to non-GET requests should never be cached with the default
  ResponseCachingPolicy
  Contributed by James Leigh <james at 3roundstones dot com>

* [HTTPCLIENT-1373] OPTIONS and TRACE should not invalidate cache
  Contributed by James Leigh <james at 3roundstones dot com>

* [HTTPCLIENT-1383] HttpClient enters an infinite loop during NTLM authentication if the opposite
  endpoint keeps responding with a type 2 NTLM response after type 3 MTLM message has already been
  sent by the client.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1372] Refactor HttpMultipart, and add RFC6532 mode, so that headers in post
  are no longer constrained to ASCII values.
  Contributed by Karl Wright <kwright at apache.org>

* [HTTPCLIENT-1377] User principal for non-NTLM authentication is incorrectly generated when using
  user credentials are specified as NTCredentials
  Contributed by Gary Gregory <ggregory at apache.org>



Release 4.3 BETA2
-------------------

This is the second BETA release of HttpClient 4.3. The most notable features and improvements
in the 4.3 branch are: Support for Java 7  try-with-resources for resource management (connection
release); fluent Builder classes for HttpEntity, HttpRequest and HttpClient instances, deprecation
of preference and configuration API based on HttpParams interface in favor of constructor injection
and plain configuration objects, reliance on object immutability instead of access synchronization
for thread safety.

This release also includes all fixes from the stable 4.2.x release branch.

Changelog
-------------------


* [HTTPCLIENT-1366] org.apache.http.client.utils.URLEncodedUtils should parse the semicolon as a query parameter separator.
  Contributed by Gary Gregory <ggregory at apache.org>

* [HTTPCLIENT-1365] NPE when ManagedHttpClientConnectionFactory.create(ConnectionConfig) is called with null.
  Contributed by Gary Gregory <ggregory at apache.org>

* [HTTPCLIENT-1362] Better error messages for connect timed out and connection refused
  exceptions.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1360] separate out DeflateInputStream as an independent class,
  so it can be used by others.
  Contributed by Karl Wright <kwright at apache.org>

* [HTTPCLIENT-1359] repeated requests using the same context fail if they redirect.
  Contributed by James Leigh <james at 3roundstones.com>

* [HTTPCLIENT-1354] do not quote algorithm parameter in DIGEST auth response.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1351] Added utility method to resolve final location from original request,
  target host and a list of redirects.
  Contributed by James Leigh <james at 3roundstones.com>

* [HTTPCLIENT-1344] Userinfo credentials in URI should not default to preemptive BASIC
  authentication.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1345] Useinfo credentials ignored in redirect location header.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1294] HttpClient to rewrite host name of the redirect location URI in order
  to avoid circular redirect exception due to host name case mismatch.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1264] Add support for multiple levels of browser compatibility
  to BrowserCompatSpec and BrowserCompatSpecFactory.  Include constructor
  argument for IE medium-security compatibility.
  Contributed by Karl Wright (kwright at apache.org)

* [HTTPCLIENT-1349] SSLSocketFactory incorrectly identifies key passed with keystore as
  the keystore password.
  Contributed by David Graff <djgraff209 at gmail.com>

* [HTTPCLIENT-1346] Ensure propagation of SSL handshake exceptions.
  Contributed by Pasi Eronen <pe at iki.fi>

* [HTTPCLIENT-1343] SSLSocketFactory optional parameters for supported SSL protocols and cipher
  suites.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1238] Contribute Bundle Activator And Central Proxy Configuration.
  Contributed by Simone Tripodi <simonetripodi at apache.org>

* [HTTPCLIENT-1299] (regression) cache incorrectly disposes of the underlying cache resource
  when storing variant entry.
  Contributed by James Leigh <james at 3roundstones.com>

* [HTTPCLIENT-1342] Redirects with underscore character in the location hostname cause
  "java.lang.IllegalArgumentException: Host name may not be null".
  Contributed by Oleg Kalnichevski <olegk at apache.org>



Release 4.3 BETA1
-------------------

This is the first BETA release of HttpClient 4.3. The 4.3 branch enhances HttpClient in several
key areas and includes several notable features and improvements: Support for Java 7
try-with-resources for resource management (connection release); fluent Builder classes for
HttpEntity, HttpRequest and HttpClient instances, deprecation of preference and configuration API
based on HttpParams interface in favor of constructor injection and plain configuration objects,
reliance on object immutability instead of access synchronization for thread safety.

This release also includes all fixes from the stable 4.2.x release branch.


Changelog
-------------------

* [HTTPCLIENT-1317] InetAddressUtils should handle IPv6 Addresses with Embedded IPv4 Addresses
  Contributed Sebastian Bazley <sebb at apache.org>.

* [HTTPCLIENT-1320] Leverage javax.net.ssl.SSLSocketFactory#getDefault() to initialize SSL context
  based on system defaults instead of using an internal custom routine.
  Contributed by Abe Backus <abraham at backus.com> and Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1316] Certificate verification rejects IPv6 addresses which are not String-equal.
  Contributed Sebastian Bazley <sebb at apache.org>.

* [HTTPCLIENT-1307] Future based asynchronous request execution.
  Contributed by Jilles van Gurp <jilles at jillesvangurp.com>

* [HTTPCLIENT-1313] Fixed IllegalStateException in deprecated ThreadSafeClientConnManager.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1298] Add AsynchronousValidator in HttpClientBuilder's list of closeable objects.
  Contributed by Martin Meinhold <mmeinhold at atlassian.com>



Release 4.3 ALPHA1
-------------------

This is the first ALPHA release of HttpClient 4.3. The 4.3 branch enhances HttpClient in several
key areas and includes several notable features and improvements: Support for Java 7
try-with-resources for resource management (connection release); fluent Builder classes for
HttpEntity, HttpRequest and HttpClient instances, deprecation of preference and configuration API
based on HttpParams interface in favor of constructor injection and plain configuration objects,
reliance on object immutability instead of access synchronization for thread safety.

We are kindly asking all upstream projects to review API changes and help us improve
the APIs by providing feedback and sharing ideas on dev@hc.apache.org.

This release also includes all fixes from the stable 4.2.x release branch.

Please note that new features included in this release are still considered experimental and
their API may change in the future 4.3 alpha and beta releases.


Changelog
-------------------

* [HTTPCLIENT-1250] Allow query string to be ignored when determining cacheability for
  HTTP 1.0 responses.
  Contributed by Don Brown <mrdon at twdata.org>

* [HTTPCLIENT-1261] Make SystemDefaultHttpClient honor http.agent system property.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-900] Don't enforce URI syntax for messages with an explicit target host.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1190] HttpClient cache does not support "Vary: Cookie"
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1259] Calling #abort() on requests executed with DecompressingHttpClient has no
  effect.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1253] URIBuilder setParameter() method could exceed the HTTP header size.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1216] Added method to force clean thread-local used by DateUtils.
  Contributed by Oleg Kalnichevski <olegk at apache.org>


Release 4.2.3
-------------------

HttpClient 4.2.3 (GA) is a bug fix release that addresses a number of issues reported since
release 4.2.2. This release also includes a thoroughly reworked NTLM authentication engine
which should result in a better compatibility with the newest Microsoft products.

Users of HttpClient 4.x are advised to upgrade.

Changelog
-------------------

* [HTTPCLIENT-1296] NPE gets thrown if you combine a default host with a virtual host
  that has a -1 value for the port.
  Contributed by Karl Wright <daddywri at gmail.com>

* [HTTPCLIENT-1290] 304 cached response never reused with If-modified-since conditional
  requests.
  Contributed by Francois-Xavier Bonnet <francois-xavier.bonnet at centraliens.net>

* [HTTPCLIENT-1291] Absolute request URIs without an explicitly specified path are rewritten
  to have "/" path).
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1286] Request URI rewriting is inconsistent - URI fragments are not removed
  from absolute request URIs.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1284] HttpClient incorrectly generates Host header when physical connection
  route differs from the host name specified in the request URI.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1293] Kerberos and SPNego auth schemes use incorrect authorization header name
  when authenticating with a proxy.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1283] NTLM needs to use Locale-independent form of
  toUpperCase().
  Contributed by Karl Wright <DaddyWri at gmail.com>

* [HTTPCLIENT-1279] Target host responding with status 407 (proxy authentication required)
  causes an NPE.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1281] GzipDecompressingEntity does not release InputStream when an IOException
  occurs while reading the Gzip header
  Contributed by Francois-Xavier Bonnet <francois-xavier.bonnet at centraliens.net>

* [HTTPCLIENT-1277] Caching client sends a 304 to an unconditional request.
  Contributed by Francois-Xavier Bonnet <francois-xavier.bonnet at centraliens.net>

* [HTTPCLIENT-1278] Update NTLM documentation.
  Contributed by Karl Wright <DaddyWri at gmail.com>

* SystemDefaultHttpClient misinterprets 'http.keepAlive' default value and disables
  connection persistence if the system property is not set. This causes connection
  based authentication schemes such as NTLM to fail.

* [HTTPCLIENT-1276] cache update on a 304 response causes NPE.
  Contributed by Francois-Xavier Bonnet <francois-xavier.bonnet at centraliens.net>

* [HTTPCLIENT-1273] DecompressingHttpClient does not automatically consume response
  content in case of an i/o, HTTP or runtime exception thrown by the decompressing
  protocol interceptor leading to a potential connection leak.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1268] NTLM engine refactor fix, to correct a buffer overrun, and get NTLMv2
  flags right.
  Contributed by Karl Wright <DaddyWri at gmail.com>

* [HTTPCLIENT-1266] NTLM engine refactoring and compatibility improvements.
  Contributed by Karl Wright <DaddyWri at gmail.com>

* [HTTPCLIENT-1263] BrowserCompatSpec: attribute values containing spaces or special characters
  should be enclosed with quotes marks for version 1 cookies.
  Contributed by Francois-Xavier Bonnet <francois-xavier.bonnet at centraliens.net>

* [HTTPCLIENT-1263] CachingHttpClient fails to release connections back to the connection
  manager for some type of HTTP response messages when used together with DecompressingHttpClient.
  Contributed by Francois-Xavier Bonnet <francois-xavier.bonnet at centraliens.net>

* [HTTPCLIENT-1258] Fixed NullPointerException in NTLMEngineImpl caused by null NT domain
  attribute.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1254] Redirect with underscore in hostname causes ProtocolException.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1255] AbstractVerifier incorrectly parses certificate CN containing wildcard.
  Contributed by Oleg Kalnichevski <olegk at apache.org>



Release 4.2.2
-------------------

HttpClient 4.2.2 (GA) is a bug fix release that addresses a number of issues reported since
release 4.2.1.

Users of HttpClient 4.2 are advised to upgrade.

Changelog
-------------------

* [HTTPCLIENT-1248] Default and lax redirect strategies should not convert requests redirected
  with 307 status to GET method.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1215] BasicAuthCache does not take default ports into consideration when
  looking up cached authentication details by HttpHost key.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1241] (regression) Preemptive BASIC authentication failure should be considered
  final and no further attempts to re-authenticate using the same credentials should be made.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1229] Fixed NPE in BasicClientConnectionManager that can be triggered by releasing
  connection after the connection manager has already been shut down.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1227] Date parsing in DateUtils made more efficient.
  Contributed by Patrick Linskey <pcl at apache.org>

* [HTTPCLIENT-1224] (regression) NTLM auth not retried after a redirect over a non-persistent
  connection.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1223] Cache could be more aggressive on cache invalidations
  from Content-Location. Contributed by Jon Moore <jonm at apache.org>.
  Contributed by Jon Moore <jonm at apache.org>

* [HTTPCLIENT-1217] AutoRetryHttpClient does not release connection used by the previous response
  when request is retried
  Contributed by Oleg Kalnichevski <olegk at apache.org>



Release 4.2.1
-------------------

HttpClient 4.2.1 (GA) is a bug fix release that addresses a number of issues reported since
release 4.2.

Users of HttpClient 4.2 are advised to upgrade.

Changelog
-------------------

* [HTTPCLIENT-1209] Redirect URIs are now normalized.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1202] ResponseCachingPolicy should honor explicit cache-control
  directives for other status codes
  Contributed by Jon Moore <jonm at apache.org>

* [HTTPCLIENT-1199] DecompressingHttpClient strips content from entity enclosing requests
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1198] HttpHost is not set in HttpContext in CachingHttpClient.
  Contributed by Jon Moore <jonm at apache.org>

* [HTTPCLIENT-1200] DecompressingHttpClient fails to generate correct HttpHost context attribute.
  Contributed by Guillaume Castagnino <casta+jira at xwing.info>

* [HTTPCLIENT-1192] URIBuilder encodes query parameters twice.
  Contributed by Oleg Kalnichevski <olegk at apache.org> and Sebastian Bazley <sebb at apache.org>.

* [HTTPCLIENT-1196] Fixed NPE in UrlEncodedFormEntity constructor thrown if charset is null.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1193] Fixed regression in the route tracking logic of the default connection manager
  causing cross-site redirect failures.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

Release 4.2
-------------------

This is the first stable (GA) release of HttpClient 4.2. The most notable enhancements included
in this release are:

* New facade API for HttpClient based on the concept of a fluent interface. The fluent API exposes
  only the most fundamental functions of HttpClient and is intended for relatively simple use cases
  that do not require the full flexibility of HttpClient. However, the fluent API almost fully
  relieves the users from having to deal with connection management and resource deallocation.

* Redesigned and rewritten connection management code.

* Enhanced HTTP authentication API that enables HttpClient to handle more complex authentication
  scenarios. HttpClient 4.2 is now capable of making use of multiple authentication challenges
  and retry authentication with a fall-back scheme in case the primary one fails. This can be
  important for compatibility with Microsoft products that are often configured to use
  SPNEGO/Kerberos as the preferred authentication scheme.


Changelog
-------------------

* [HTTPCLIENT-1187] If a revalidation response is deemed too old CachingHttpClient fails to
  consume its content resulting in a connection leak.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1186] State of newly created connections in the connection pool is not always
  correctly updated potentially allowing those connections to be leased to users with a different
  security context.
  Contributed by Ralf Poehlmann <rpn at methodpark.de>

* [HTTPCLIENT-1179] Upgraded Commons Codec dependency to version 1.6
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1177] always remove fragments from request URIs
  Contributed by Oleg Kalnichevski <olegk at apache.org>

Incompatible changes
--------------------
[Compared to release version 4.1.3]

The following fields have been deprecated for some time now and have been deleted:

org.apache.http.client.params.ClientPNames#CONNECTION_MANAGER_FACTORY
org.apache.http.impl.cookie.BrowserCompatSpec#DATE_PATTERNS

The following methods have been deprecated for some time now and have been deleted:

org.apache.http.client.params.ClientParamBean#setConnectionManagerFactory(org.apache.http.conn.ClientConnectionManagerFactory)
org.apache.http.client.protocol.ClientContextConfigurer#setAuthSchemePref(java.util.List)
org.apache.http.entity.mime.content.FileBody#writeTo(java.io.OutputStream, int)
org.apache.http.entity.mime.content.InputStreamBody#writeTo(java.io.OutputStream, int)
org.apache.http.entity.mime.content.StringBody#writeTo(java.io.OutputStream, int)

The following classes have been deprecated for some while now and have been deleted:

org.apache.http.impl.conn.tsccm.RefQueueHandler
org.apache.http.impl.conn.tsccm.AbstractConnPool no longer implements interface org.apache.http.impl.conn.tsccm.RefQueueHandler
org.apache.http.impl.conn.tsccm.ConnPoolByRoute no longer implements interface org.apache.http.impl.conn.tsccm.RefQueueHandler
org.apache.http.impl.conn.tsccm.RefQueueWorker



Release 4.2 BETA1
-------------------

This is the first BETA release of HttpClient 4.2. This release completes development of several
notable enhancements in HttpClient:

* New facade API for HttpClient based on the concept of a fluent interface. The fluent API exposes
  only the most fundamental functions of HttpClient and is intended for relatively simple use cases
  that do not require the full flexibility of HttpClient. However, the fluent API almost fully
  relieves the users from having to deal with connection management and resource deallocation.

* Redesigned and rewritten connection management code. As of release 4.2 HttpClient will be using
  pooling connection manager per default.

* Enhanced HTTP authentication API that enables HttpClient to handle more complex authentication
  scenarios. HttpClient 4.2 is now capable of making use of multiple authentication challenges
  and retry authentication with a fall-back scheme in case the primary one fails. This can be
  important for compatibility with Microsoft products that are often configured to use
  SPNEGO/Kerberos as the preferred authentication scheme.


Changelog
-------------------

* [HTTPCLIENT-1164] Compressed entities are not being cached properly.
  Contributed by Jon Moore <jonm at apache dot org>.

* [HTTPCLIENT-1154] MemcachedHttpCacheStorage should allow client to
  specify custom prefix string for keys.
  Contributed by Jon Moore <jonm at apache dot org>.

* [HTTPCLIENT-1153] MemcachedHttpCacheStorage uses URL as cache key;
  shouldn't due to fixed maximum-length memcached keys.
  Contributed by Jon Moore <jonm at apache dot org>.

* [HTTPCLIENT-1157] MemcachedHttpCacheStroage should throw IOExceptions
  instead of RuntimeExceptions.
  Contributed by James Miller <jamesmiller01 at gmail dot com>.

* [HTTPCLIENT-1152] MemcachedHttpCacheStorage should verify class of
  returned object before casting.
  Contributed by Rajika Kumarasiri <rajika at wso2 dot com>.

* [HTTPCLIENT-1155] CachingHttpClient fails to ensure that the response content gets fully consumed
  when using a ResponseHandler, which can potentially lead to connection leaks.
  Contributed by James Miller <jamesmiller01 at gmail dot com>

* [HTTPCLIENT-1147] When HttpClient-Cache cannot open cache file, should act like miss.
  Contributed by Joe Campbell <joseph.r.campbell at gmail.com>

* [HTTPCLIENT-1137] Values for the Via header are cached and reused by httpclient-cache.
  Contributed by Alin Vasile <alinachegalati at yahoo dot com>

* [HTTPCLIENT-1142] Infinite loop on NTLM authentication failure.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1143] CachingHttpClient leaks connections with stale-if-error.
  Contributed by James Miller <jamesmiller01 at gmail dot com>

Release 4.2 ALPHA1
-------------------

This is the first ALPHA release of HttpClient 4.2. The 4.2 branch enhances HttpClient in several
key areas and includes several notable features and improvements:

* New facade API for HttpClient based on the concept of a fluent interface. The fluent API exposes
  only the most fundamental functions of HttpClient and is intended for relatively simple use cases
  that do not require the full flexibility of HttpClient. However, the fluent API almost fully
  relieves the users from having to deal with connection management and resource deallocation.

* Redesigned and rewritten connection management code. As of release 4.2 HttpClient will be using
  pooling connection manager per default.

* Enhanced HTTP authentication API that enables HttpClient to handle more complex authentication
  scenarios. HttpClient 4.2 is now capable of making use of multiple authentication challenges
  and retry authentication with a fall-back scheme in case the primary one fails. This can be
  important for compatibility with Microsoft products that are often configured to use
  SPNEGO/Kerberos as the preferred authentication scheme.

Please note that new features included in this release are still considered experimental and
their API may change in the future ALPHA releases.

Changelog
-------------------

* [HTTPCLIENT-1128] SystemDefaultHttpClient (HttpClient implementation initialized using system
  properties).
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1135] RandomAccessFile mode 'w' used by HttpClientCache is not valid.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1131] HttpClient to authenticate preemptively using BASIC scheme if a userinfo
  attribute is specified in the request URI.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1134] make BasicResponseHandler consume response content in case of an unsuccessful
  result (status code >= 300).
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1132] ProxyClient implementation.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1127] fixed dead-lock between SingleClientConnManager and AbstractPooledConnAdapter.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1107] Auth framework redesign.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1116] ResponseCachingPolicy uses integers for sizes
  Contributed by Greg Bowyer <gbowyer at fastmail.co.uk >

* [HTTPCLIENT-1123] Support for pluggable DNS resolvers.
  Contributed by Alin Vasile <alinachegalati at yahoo dot com>

* [HTTPCLIENT-1120] DefaultHttpRequestRetryHandler#retryRequest should not retry aborted requests.
  Contributed by Alin Vasile <alinachegalati at yahoo dot com>

* Support for auth-int qop (quality of protection) option in Digest auth scheme.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1076] Fluent facade API (Google summer of code 2011 project).
  Contributed by Xu Lilu <cookieme at gmail.com>

* UriBuilder implementation.
  Contributed by Xu Lilu <cookieme at gmail.com>

* Redesign of connection management classes based on new pooling components from HttpCore.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1111] Added #prepareSocket method to SSLSocketFactory.
  Contributed by Pasi Eronen <pe at iki.fi>

* Added #reset() and #releaseConnection() methods to HttpRequestBase.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1105] AutoRetryHttpClient: built-in way to do auto-retry for certain status codes.
  Contributed by Dan Checkoway <dcheckoway at gmail.com>

* [HTTPCLIENT-1094] Digest auth scheme refactoring.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* Lax implementation of RedirectStrategy.
  Contributed by Bartosz Firyn <songo.bercik at interia.pl>

* [HTTPCLIENT-1044] HttpRequestRetryHandler implementation compliant with the definition of
  idempotent methods given in the RFC 2616.
  Contributed by Oleg Kalnichevski <olegk at apache.org>


Release 4.1.2
-------------------

The HttpClient 4.1.2 is a bug fix release that addresses a number of non-critical issues reported
since release 4.1.1.

* [HTTPCLIENT-1100] Missing Content-Length header makes cached entry invalid
  Contributed by Bart Robeyns <bart dot robeyns at gmail dot com>

* [HTTPCLIENT-1098] Avoid expensive reverse DNS lookup on connect timeout exception.
  Contributed by Thomas Boettcher <tboett at gmail.com>

* [HTTPCLIENT-1097] BrowserCompatHostnameVerifier and StrictHostnameVerifier should handle
  wildcards in SSL certificates better.
  Contributed by Sebastian Bazley <sebb at apache.org>

* [HTTPCLIENT-1092] If ClientPNames.VIRTUAL_HOST does not provide the port, derive it from the
  current request.
  Contributed by Sebastian Bazley <sebb at apache.org>

* [HTTPCLIENT-1087] NTLM proxy authentication fails on retry if the underlying connection is closed
  as a result of a target authentication failure.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1079] Fixed Kerberos cross-realm support
  Contributed by Michael Osipov <1983-01-06 at gmx.net>

* [HTTPCLIENT-1078] Decompressing entities (DeflateDecompressingEntity, GzipDecompressingEntity)
  do not close content stream in #writeTo() method.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1075] Decompressing entities (DeflateDecompressingEntity, GzipDecompressingEntity)
  do not correctly handle content streaming.
  Contributed by James Abley <james.abley at gmail.com>

* [HTTPCLIENT-1051] Avoid reverse DNS lookups when opening SSL connections by IP address.
  Contributed by Oleg Kalnichevski <olegk at apache.org>


Release 4.1.1
-------------------

HttpClient v4.1.1 is a bug fix release that addresses a number of issues reported since
release 4.1, including one critical security issue (HTTPCLIENT-1061). All users of HttpClient 4.0.x
and 4.1 are strongly encouraged to upgrade.

* [HTTPCLIENT-1069] HttpHostConnectException not correctly retried for direct and non-tunnelled
  proxy connections.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1066] Changed the way URIUtils#rewriteURI handles multiple consecutive slashes in the
  URI path component: multiple leading slashes will be replaced by one slash in order to avoid
  confusion with the authority component. The remaining content of the path will not be modified.
  (also see HTTPCLIENT-929).
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1061] Fixed critical bug causing Proxy-Authorization header to be sent to the target
  host when tunneling requests through a proxy server that requires authentication.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1056] Fixed bug causing the RequestAuthCache protocol interceptor to generate
  an invalid AuthScope instance when looking up user credentials for preemptive authentication.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1053] Fixed the way DigestScheme generates nonce-count values.
  Contributed by Oleg Kalnichevski <olegk at apache.org>


Release 4.1
-------------------

The HttpClient 4.1 release builds upon the stable foundation laid by HttpClient 4.0 and adds several
functional improvements and popular features.

* Response caching conditionally compliant with HTTP/1.1 specification (full compliance with
  MUST requirements, partial compliance with SHOULD requirements)

* Full support for NTLMv1, NTLMv2, and NTLM2 Session authentication. The NTLM protocol code
  was kindly contributed by the Lucene Connector Framework project.

* Support for SPNEGO/Kerberos authentication.

* Persistence of authentication data between request executions within the same execution context.

* Support for preemptive authentication for BASIC and DIGEST schemes.

* Support for transparent content encoding. Please note transparent content encoding is not
  enabled per default in order to avoid conflicts with already existing custom content encoding
  solutions.

* Mechanism to bypass the standard certificate trust verification (useful when dealing with
  self-signed certificates).

* Simplified configuration for connection managers.

* Transparent support for host multihoming.

IMPORTANT: please note that the HttpClient 3.x branch is now officially END OF LIFE and is no longer
maintained and supported by the Apache HttpComponents project.

Changelog
-------------------
* The public API for the caching module had a minor change between 4.1-beta and 4.1-GA to the
  HttpCacheEntry class - the deprecated public Set<String> getVariantURIs() method and constructor
  public HttpCacheEntry(Date requestDate, Date responseDate,
            StatusLine statusLine, Header[] responseHeaders,
            Resource resource, Set<String> variants)
  were both removed.  This will not affect you unless you are implementing new storage backends
  that use the deprecated code and/or are implementing custom serializers for cache entries.

* Changed Browser-Compatibility and Best-Match cookie policies to emulate the behaviour of FireFox
  more closely when parsing Netscape style cookies. Comma will no longer be treated as a header
  element separator if Set-Cookie does not contain a Version attribute mandated by the
  RFC2109 / RFC 2965 cookie specifications.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1036] StringBody has incorrect default for characterset. (Default changed
  to US-ASCII)
  Contributed by Sebastian Bazley <sebb at apache.org>

* [HTTPCLIENT-975] Support stale-if-error and stale-while-revalidate extension directive (RFC5861).
  Contributed by Mohammed Azeem Uddin <mohammedazeem_uddin at comcast.com>,
  Michajlo Matijkiw <michajlo_matijkiw at comcast.com>, and
  Matthew Hawthorne <matthew_hawthorne at comcast.com>.

* [HTTPCLIENT-1033] HttpRoute.equals(Object o) is quite inefficient, as it does not take full
  advantage of shortcut logic.
  Contributed by Sebastian Bazley <sebb at apache.org>

* [HTTPCLIENT-1030] Implement "ignoreCookies" CookieSpec
  Contributed by Sebastian Bazley <sebb at apache.org>

Release 4.1 BETA1
-------------------

HttpClient 4.1 BETA1 finalizes the 4.1 API and brings a number of major improvements to the HTTP
caching module. This release also adds full support for NTLMv1, NTLMv2, and NTLM2 Session
authentication. The NTLM protocol code was kindly contributed by the Lucene Connector Framework
project.

Changelog
-------------------
* [HTTPCLIENT-1015] Support only-if-cached directive.
  Contributed by Michajlo Matijkiw <michajlo_matijkiw at comcast.com>

* [HTTPCLIENT-990] Allow heuristic freshness caching.
  Contributed by Michajlo Matijkiw <michajlo_matijkiw at comcast.com>

* [HTTPCLIENT-919] Support for NTLMv1, NTLMv2, and NTLM2 Session authentication.
  Contributed by Karl Wright <karl.wright at nokia.com>

* [HTTPCLIENT-1008] Send all variants' ETags on "variant miss".
  Contributed by Michajlo Matijkiw <michajlo_matijkiw at comcast.com> and
  Mohammed Azeem Uddin <mohammedazeem_uddin at comcast.com>

* [HTTPCLIENT-1011] Handling of IOExceptions thrown by cache components.
  Contributed by Jonathan Moore <jonathan_moore at comcast.com>

* [HTTPCLIENT-1003] Handle conditional requests in cache.
  Contributed by Michajlo Matijkiw <michajlo_matijkiw at comcast.com> and
  Mohammed Azeem Uddin <mohammedazeem_uddin at comcast.com>

* [HTTPCLIENT-1002] Stale connection check fails if wire logging is on.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-1000] Maximum connection lifetimes settings for ThreadSafeClientConnManager.
  Contributed by Michajlo Matijkiw <michajlo_matijkiw at comcast.com>

* [HTTPCLIENT-960] HttpMultipart doesn't generate Content-Type header for binary parts in
  BROWSER_COMPATIBLE mode.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-998] Cache should use both Last-Modified and ETag for validations when available.
  Contributed by Jonathan Moore <jonathan_moore at comcast.com>

* [HTTPCLIENT-997] Cache module should handle out-of-order validations properly and unconditionally
  refresh.
  Contributed by Jonathan Moore <jonathan_moore at comcast.com>

* [HTTPCLIENT-994] Cache does not allow client to override origin-specified freshness using
  max-stale.
  Contributed by Jonathan Moore <jonathan_moore at comcast.com>

* [HTTPCLIENT-995] Cache returns cached responses even if validators not consistent with all
  conditional headers.
  Contributed by Jonathan Moore <jonathan_moore at comcast.com>

* [HTTPCLIENT-977] Memcached implementation for HttpCache.
  Contributed by Mohammed Azeem Uddin <mohammedazeem_uddin at comcast.com>

* [HTTPCLIENT-992] cache should not generate stale responses to requests explicitly requesting
  first-hand or fresh ones.
  Contributed by Jonathan Moore <jonathan_moore at comcast.com>

* [HTTPCLIENT-991] cache module produces improperly formatted Warning header when revalidation
  fails.
  Contributed by Jonathan Moore <jonathan_moore at comcast.com>

* [HTTPCLIENT-989] DefaultHttpRequestRetryHandler no longer retries non-idempotent http methods
  if NoHttpResponseException is thrown.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-988] Cache module should strip 'Content-Encoding: identity' from responses
  Contributed by Jonathan Moore <jonathan_moore at comcast.com>

* [HTTPCLIENT-987] cache module does not recognize equivalent URIs.
  Contributed by Jonathan Moore <jonathan_moore at comcast.com>

* [HTTPCLIENT-986] cache module does not completely handle upstream Warning headers correctly
  Contributed by Jonathan Moore <jonathan_moore at comcast.com>

* [HTTPCLIENT-985] cache module should populate Via header to capture upstream and downstream protocols
  Contributed by Jonathan Moore <jonathan_moore at comcast.com>

* [HTTPCLIENT-984] Additional conditional compliance tests for the caching module for
  Content-Encoding, Content-Location, Date, Expires, Server, Transfer-Encoding, and Vary headers.
  Contributed by Jonathan Moore <jonathan_moore at comcast.com>

* [HTTPCLIENT-978] HTTP cache update exception handling
  Contributed by Michajlo Matijkiw <michajlo_matijkiw at comcast.com>

* [HTTPCLIENT-981] CachingHttpClient returns a 411 respones when executing a POST (HttpPost)
  request.
  Contributed by Joe Campbell <joseph.r.campbell at gmail.com>

* [HTTPCLIENT-980] CachingHttpClient returns a 503 response when the backend HttpClient produces
  an IOException.
  Contributed by Jonathan Moore <jonathan_moore at comcast.com>

* [HTTPCLIENT-978] Ehcache based HTTP cache implementation
  Contributed by Michajlo Matijkiw <michajlo_matijkiw at comcast.com>

* [HTTPCLIENT-967] support for non-shared (private) caches
  Contributed by Jonathan Moore <jonathan_moore at comcast.com>

* [HTTPCLIENT-969] BasicCookieStore#getCookies() to return a copy of Cookie list
  Contributed by David Smiley <dsmiley at mitre.org>

* [HTTPCLIENT-965] Fixed problem with cache not honoring must-revalidate or
  proxy-revalidate Cache-Control directives.
  Contributed by Jonathan Moore <jonathan_moore at comcast.com>

* [HTTPCLIENT-964] 'no-cache' directives with field names are no longer transmitted
  downstream.
  Contributed by Jonathan Moore <jonathan_moore at comcast.com>

* [HTTPCLIENT-963] Fixed handling of 'Cache-Control: no-store' on requests.
  Contributed by Jonathan Moore <jonathan_moore at comcast.com>

* [HTTPCLIENT-962] Fixed handling of Authorization headers in shared cache mode.
  Contributed by Jonathan Moore <jonathan_moore at comcast.com>

* [HTTPCLIENT-961] Not all applicable URIs are invalidated on PUT/POST/DELETEs
  that pass through client cache.
  Contributed by Jonathan Moore <jonathan_moore at comcast.com>

* [HTTPCLIENT-958] Client cache no longer allows incomplete responses to be
  passed on to the client.
  Contributed by Jonathan Moore <jonathan_moore at comcast.com>

* [HTTPCLIENT-951] Non-repeatable entity enclosing requests are not correctly
  retried when 'expect-continue' handshake is active.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-948] In rare circumstances the idle connection handling code
  can leave closed connections in a inconsistent state.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-953] IllegalStateException thrown by RouteSpecificPool.
  Contributed by Guillaume <gueugaie at gmail.com>

* [HTTPCLIENT-952] Trust store parameter is ignored by SSLSocketFactory
  (affects version 4.1-alpha2 only)
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-937] CacheEntry made immutable; now uses immutable HttpEntity
  to store cached content.
  Contributed by David Mays <david_mays at comcast.com> and
  Oleg Kalnichevski <olegk at apache.org>

Release 4.1 ALPHA2
-------------------

HttpClient 4.1 ALPHA2 fixes a number of non-severe bugs discovered since
the last release and introduces support for two frequently requested features:

* HTTP/1.1 response caching

* transparent support for host multihoming

* a mechanism to bypass the standard certificate trust verification
(useful when dealing with self-signed certificates)

Compatibility notes
-------------------
(1) Please note the HTTP caching module is still considered experimental and
its API may change significantly in the future releases.

(2) This release eliminates Mime4J as a dependency for the HttpMime module.
HttpMime is no longer binary compatible with the previous releases.
Full API and binary compatibility between minor versions of HttpMime will be
maintained as of 4.1 GA release.

Changelog
-------------------

* [HTTPCLIENT-936] Fixed bug causing NPE or an infinite loop in
  the authentication code in case of a SPNEGO authentication failure.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-427] HTTP caching support
  Contributed by Joe Campbell, David Cleaver, David Mays, Jon Moore, Brad Spenla

* Dropped dependency on Mime4j for HttpMime.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* Extended SSLSocketFactory with a mechanism to bypass the standard certificate
  trust verification (primarily to simplify dealing with self-signed
  certificates)
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-898] Improved support for host multihoming
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-916] UsernamePasswordCredentials, NTUserPrincipal,
  BasicClientCookie, BasicClientCookie2 and BasicCookieStore made Serializable.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-914] Upgraded Commons Codec dependency to version 1.4
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-903] Use ConcurrentHashMap instead of [Linked]HashMap for
  thread-safety. Improve performance of AuthSchemeRegistry, CookieSpecRegistry
  and SchemeRegistry classes.
  Contributed by Sebastian Bazley <sebb at apache.org>

* [HTTPCLIENT-902] HttpRequestRetryHandler not called on I/O exceptions
  thrown when opening a new connection.
  Contributed by Olivier Lamy <olamy at apache.org> and
  Oleg Kalnichevski <olegk at apache.org>

Release 4.1 ALPHA1
-------------------

HttpClient 4.1 ALPHA1 builds on the stable 4.0 release and adds several
functionality improvements and new features.

* Simplified configuration of connection managers.

* Persistence of authentication data between request executions within
  the same execution context.

* Support for SPNEGO/Kerberos authentication scheme

* Support for transparent content encoding. Please note transparent content
  encoding is not enabled per default in order to avoid conflicts with
  already existing custom content encoding solutions.

* 5 to 10% performance increase due to elimination of unnecessary Log object
  lookups by short-lived components.

Please note all methods and classes added in this release and marked as
4.1 are API unstable and can change in the future 4.1 ALPHA releases.

Changelog
-------------------

* [HTTPCLIENT-889] 'expect: continue' handshake disabled per default.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-862] Extended client's redirect handling interface to allow
  control of the content of the redirect.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-872] HttpClient can now persist authentication data between request
  executions as long as they share the same execution context. It has also become
  much easier to make HttpClient authenticate preemptively by pre-populating
  authentication data cache.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-883] SO_TIMEOUT is not reset on persistent (re-used) connections.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-832] Distinguish cookie format errors from violations of
  restrictions imposed by a cookie specification. In the latter case
  CookieRestrictionViolationException will be thrown.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-523] Support for SPNEGO authentication scheme.
  Contributed by Matthew Stevenson <mavricknzwork at yahoo.com>

* Simplified configuration of connection managers. Total connection maximum
  and maximum connection per route limits can be set using methods of
  the class instead of HTTP parameters.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* Added parameters to define the order of preference for supported auth
  schemes for target host and proxy authentication.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-875] DefaultClientConnectionOperator#openConnection doesn't
  update the connection state if the connection socket changed after
  the call to SocketFactory#connectSocket().
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-834] Transparent content encoding support.
  Contributed by James Abley <james.abley at gmail.com>

Release 4.0.1
-------------------

This is a bug fix release that addresses a number of issues discovered since
the previous stable release. None of the fixed bugs is considered critical.
Most notably this release eliminates eliminates dependency on JCIP annotations.

This release is also expected to improve performance by 5 to 10% due to
elimination of unnecessary Log object lookups by short-lived components.

Changelog
-------------------

* [HTTPCLIENT-895] Eliminated Log lookups in short lived objects impairing
  performance.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-885] URLEncodedUtils now correctly parses form-url-encoded
  entities that specify a charset.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-884] UrlEncodedFormEntity now sets charset on the Content-Type
  header.
  Contributed by Jared Jacobs <jmjacobs at cs.stanford.edu>

* [HTTPCLIENT-883] SO_TIMEOUT is not reset on persistent (re-used) connections.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-882] Auth state is now correctly updated if a successful NTLM
  authentication results in a redirect. This is a minor bug as HttpClient
  manages to recover from the problem automatically.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-881] Fixed race condition in AbstractClientConnAdapter that makes
  it possible for an aborted connection to be returned to the pool.
  Contributed by Tim Boemker <tboemker at elynx.com> and
  Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-866] Removed dependency on jcip-annotations.jar.
  Contributed by Oleg Kalnichevski <olegk at apache.org>
  and Sebastian Bazley <sebb at apache.org>


Release 4.0
-------------------

HttpClient 4.0 represents a complete, ground-up redesign and almost a complete
rewrite of the HttpClient 3.x codeline. This release finally addresses several
design flaws that existed since the 1.0 release and could not be fixed without
a major code overhaul and breaking API compatibility.


Architectural changes
---------------------

* Redesign of the HttpClient internals addressing all known major
  architectural shortcomings of the 3.x codeline.

* Cleaner, more flexible and expressive API.

* More modular structure.

* Better performance and smaller memory footprint due to a more efficient HTTP
  transport based on HttpCore.

* Implementation of cross-cutting HTTP protocol aspects through protocol
  interceptors.

* Improved connection management, better handling of persistent connections,
  support for stateful connections

* Pluggable redirect and authentication handlers.

* Improved support for sending requests via a proxy or a chain of proxies

* More flexible SSL context customization

* Reduced intermediate garbage in the process of generating HTTP requests
  and parsing HTTP responses


Important notes
-------------------

* Future releases of HttpMime module may be binary incompatible with this
  release due to possible API changes in Apache Mime4J. Apache Mime4J is
  still being actively developed and its API is considered unstable.

* HttpClient 4.0 is not fully binary compatible with 4.0 BETA1 release.
  Some protected variables in connection management class have been
  made final in order to help ensure their thread safety:

    org.apache.http.conn.BasicEofSensorWatcher#attemptReuse
    org.apache.http.conn.BasicEofSensorWatcher#managedConn
    org.apache.http.impl.conn.DefaultClientConnectionOperator#schemeRegistry
    org.apache.http.impl.conn.DefaultHttpRoutePlanner#schemeRegistry
    org.apache.http.impl.conn.ProxySelectorRoutePlanner#schemeRegistry
    org.apache.http.impl.conn.SingleClientConnManager#alwaysShutDown
    org.apache.http.impl.conn.SingleClientConnManager#connOperator
    org.apache.http.impl.conn.SingleClientConnManager#schemeRegistry
    org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager#connOperator
    org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager#schemeRegistry


Bug fixes since 4.0 BETA2 release
-------------------

* [HTTPCLIENT-861] URIUtils#resolve is now compatible with all examples given
  in RFC 3986.
  Contributed by Johannes Koch <johannes.koch at fit.fraunhofer.de>

* [HTTPCLIENT-860] HttpClient no longer converts redirects of PUT/POST to GET
  for status codes 301, 302, 307, as required by the HTTP spec.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-859] CookieIdentityComparator now takes path attribute into
  consideration when comparing cookies.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* HttpClient will no longer send expired cookies back to the origin server.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-856] Proxy NTLM authentication no longer fails on a redirect to
  a different host.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-841] Removed automatic connection release using garbage collection
  due to a memory leak.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-853] Fixed bug causing invalid cookie origin port to be selected
  when the target is accessed on the default port and the connection is
  established via a proxy.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-852] Fixed bug causing automatically retried redirects fail with
  CircularRedirectException.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* Fixed problem with the default HTTP response parser failing to handle garbage
  preceding a valid HTTP response.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* NonRepeatableRequestExceptions now include the cause that the original
  request failed.
  Contributed by Sam Berlin <sberlin at apache.org>

* [HTTPCLIENT-837] Fixed problem with the wire log skipping zero byte values
  if read one byte at a time.
  Contributed by Kirill Safonov <ksafonov at swiftteams.com>

* [HTTPCLIENT-823] 'http.conn-manager.max-total' parameter can be adjusted
  dynamically. However, the size of existing connection pools per route,
  once allocated, will not be adjusted.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-822] Default socket factories to rethrow SocketTimeoutException
  as ConnectTimeoutException in case of connect failure due to a time out.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-813] Fixed default port resolution. Invalid ports no longer
  get replaced with the default port value.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

Release 4.0 beta 2
-------------------

BETA2 is a maintenance release, which addresses a number of issues
discovered since the previous release.

The only significant new feature is an addition of an OSGi compliant
bundle combining HttpClient and HttpMime jars.

All upstream projects are strongly encouraged to upgrade.

* Fixed NPE in DefaultRequestDirector thrown when retrying a failed
  request over a proxied connection.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-803] Fixed bug in SSL host verifier implementations
  causing the SSL certificate to be rejected as invalid if the connection
  is established using an IP address.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-806] DefaultHttpMethodRetryHandler will no longer retry
  on ConnectExceptions.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* DigestScheme can use an arbitrary digest algorithm requested by the
  target server (such as SHA) as long as this algorithm is supported by
  the Java runtime.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* Fixed parsing and validation of RFC2109 compliant Set-Cookie headers
  by the Best-Match cookie spec.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* Fixed bug that can cause a managed connection to be returned from the
  pool in an inconsistent state.
  Contributed by Oleg Kalnichevski <olegk at apache.org>


4.0 Beta 1
-------------------

BETA1 release brings yet another round of API enhancements and
improvements in the area of connection management. Among the most notable
ones is the capability to handle stateful connections such as persistent
NTLM connections and private key authenticated SSL connections.

This is the first API stable release of HttpClient 4.0. All further
releases in the 4.0 code line will maintain API compatibility with this
release.

There has been a number of important bug fixes since ALPHA4. All upstream
projects are encouraged to upgrade to the latest release.

Please note HttpClient currently provides only limited support for NTLM
authentication. For details please see NTLM_SUPPORT.txt.

-------------------

Changelog:
-------------------

* [HTTPCLIENT-790] Protocol interceptors are now correctly invoked when
  executing CONNECT methods.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-668] Do not use static loggers.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-781] Respect Keep-Alive header's timeout value.
  Contributed by Sam Berlin <sberlin at apache.org>

* [HTTPCLIENT-779] Top-level classes (HttpClient, and HttpGet, HttpPut
  and similar HttpMethods) throw fewer checked exceptions.
  Contributed by Sam Berlin <sberlin at apache.org>

* HttpClient will throw an exception if an attempt is made to retry
  a request with a non-repeatable request entity.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* Fixed request re-generation logic when retrying a failed request.
  Auto-generated headers will no accumulate.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-424] Preemptive authentication no longer limited to BASIC
  scheme only. HttpClient can be customized to authenticate preemptively
  with DIGEST scheme.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-670] Pluggable hostname resolver.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-719] Clone support for HTTP request and cookie objects.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-776] Fixed concurrency issues with AbstractPoolEntry.
  Contributed by Sam Berlin <sberlin at gmail.com>

* Resolved a long standing problem with HttpClient not taking into account
  the user context when pooling / re-using connections. HttpClient now
  correctly handles stateful / user specific connections such as persistent
  NTLM connections and SSL connections with client side authentication.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-773] Improved handling of the 'expires' attribute by the
  'Best Match' cookie spec.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* Partial NTLM support (requires an external NTLM engine). For details see
  NTLM_SUPPORT.txt
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* Redesigned local execution context management.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

--------------------------------------

Release 4.0 Alpha 4
-------------------

ALPHA4 marks the completion of the overhaul of the connection management
code in HttpClient. All known shortcomings of the old HttpClient 3.x
connection management API have been addressed.

NTLM authentication remains the only missing major feature in the new
codeline that prevents us from moving awards the API freeze.

There has been a number of important bug fixes since ALPHA3. All upstream
projects are encouraged to upgrade to the latest release.

-------------------

HttpClient 3.x features that have NOT yet been ported:
-------------------

* NTLM authentication scheme

-------------------

Changelog:
-------------------

* [HTTPCLIENT-765] String.toLowerCase() / toUpperCase() should specify
  Locale.ENGLISH
  Contributed by Sebastian Bazley <sebb at apache.org>

* [HTTPCLIENT-769] Do not pool connection marked non-reusable.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-763] Fixed problem with AbstractClientConnAdapter#abortConnection()
  not releasing the connection if called from the main execution thread while
  there is no blocking I/O operation.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-652] Added optional state attribute to managed client connections.
  This enables connection managers to correctly handle stateful connections.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-673] Revised max connections per route configuration
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-753] Class Scheme and related classes moved to a separate package
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-757] Improved request wrapping in the DefaultClientRequestDirector.
  This also fixed the problem with the default proxy set at the client level
  having no effect.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-734] Request abort will unblock the thread waiting for a connection
  Contributed by Sam Berlin <sberlin at gmail.com>

* [HTTPCLIENT-759] Ensure release of connections back to the connection manager
  on exceptions.
  Contributed by Sam Berlin <sberlin at gmail.com>

* [HTTPCLIENT-758] Fixed the use of generics in AbstractHttpClient
  #removeRequestInterceptorByClass and #removeResponseInterceptorByClass
  Contributed by Johannes Koch <johannes.koch at fit.fraunhofer.de>

* [HTTPCLIENT-749] HttpParams beans
  Contributed by Stojce Dimski <sdmiski at yahoo.it>

* [HTTPCLIENT-755] Workaround for known bugs in java.net.URI.resolve()
  Bug ID: 4708535
  Contributed by Johannes Koch <johannes.koch at fit.fraunhofer.de>

--------------------------------------

Release 4.0 Alpha 3
-------------------

ALPHA3 release brings another round of API refinements and improvements in
functionality. As of this release HttpClient requires Java 5 compatible
runtime environment and takes full advantage of generics and new concurrency
primitives.

This release also introduces new default cookie policy that selects a cookie
specification depending on the format of cookies sent by the target host.
It is no longer necessary to know beforehand what kind of HTTP cookie support
the target host provides. HttpClient is now able to pick up either a lenient
or a strict cookie policy depending on the compliance level of the target host.

Another notable improvement is a completely reworked support for multipart
entities based on Apache mime4j library.

-------------------

HttpClient 3.x features that have NOT yet been ported:
-------------------

* NTLM authentication scheme

-------------------

Changelog:
-------------------

* [HTTPCLIENT-742] common interface for HttpRoute and RouteTracker
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-741] Fixed concurrency issues in AbstractClientConnAdapter.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-726] testcase for spurious wakeups in ThreadSafeClientConnManager
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-643] Automatic connect fail-over for multi-home remote servers.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-735] unsetting of DEFAULT_PROXY and FORCED_ROUTE in hierarchies
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-723] route planner based on java.net.ProxySelector
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-740] don't start connection GC thread in pool constructor
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-736] route planners use SchemeRegistry instead of ConnManager
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-730] Fixed rewriting of URIs containing escaped characters
  Contributed by Sam Berlin <sberlin at gmail.com> and
  Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-667] Added 'Meta' cookie policy that selects a cookie
  specification depending on the format of the cookie(s).
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-729] Move HttpRoute and related classes to routing package.
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-725] Use TimeUnit arguments for timeouts in connection manager.
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-677] Connection manager no longer uses Thread.interrupt().
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-716] Allow application-defined routes.
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-712] Improve HttpRoute API
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-711] Bad route computed for redirected requests
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-715] Remove RoutedRequest from API
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-705] Fixed incorrect handling of URIs with null path component.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-688] HttpOptions#getAllowedMethods can now handle multiple
  Allow headers.
  Contributed by Andrea Selva <selva.andre at gmail.com>

--------------------------------------

Release 4.0 Alpha 2
-------------------

ALPHA2 release is another milestone in the redesign of HttpClient. It includes
a number of improvements since ALPHA1, among which are improved connection
pooling, support for proxy chains, redesigned HTTP state and authentication
credentials management API, improved RFC 2965 cookie specification.

-------------------

HttpClient 3.x features that have NOT yet been ported
-------------------
* NTLM authentication scheme

* Support for multipart MIME coded entities

-------------------

Changelog
-------------------

* [HTTPCLIENT-698] Resolve non-absolute redirect URIs relative to
  the request URI
  Contributed by Johannes Koch <johannes.koch at fit.fraunhofer.de>

* [HTTPCLIENT-697] Throw a more intelligible exception when connection
  to a remote host cannot be established.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-689] Caching of SimpleDateFormat in DateUtils
  Contributed by Daniel Müller <strider at digitalstrider.com>

* [HTTPCLIENT-689] stackable parameters in AbstractHttpClient
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-477] Use distinct instances of the authentication handler
  interface for authentication with target and proxy hosts
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-690] ManagedClientConnection provides access to SSLSession
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-692] ClientConnectionManager throws InterruptedException
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCORE-116] moved parameter names to interfaces
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-649] support for proxy chains in HttpConn
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-636] refactor ThreadSafeClientConnManager in separate package
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-669] new HttpRoutePlanner interface and implementation
  Contributed by Andrea Selva <selva.andre at gmail.com>

* [HTTPCLIENT-653] detached connection wrapper no longer prevents
  garbage collection of ThreadSafeClientConnManager
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-674] use org.apache.http.util.VersionInfo instead of a local one
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-666] Replaced HttpState with CredentialsProvier and CookieStore interfaces
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCORE-100] revised HttpContext hierarchy
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-618] eliminate class HostConfiguration
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-672] re-sync with API changes in core alpha6-SNAPSHOT
  Contributed by Roland Weber <rolandw at apache.org>

--------------------------------------

Release 4.0 Alpha 1
-------------------

HttpClient 4.0 represents a complete, ground-up redesign and almost a complete
rewrite of the HttpClient 3.x codeline. This release finally addresses several
design flaws that existed since the 1.0 release and could not be fixed without
a major code overhaul and breaking API compatibility.

The HttpClient 4.0 API is still very experimental and is bound to change
during the course of the ALPHA development phase. Several important features
have not yet been ported to the new API.

Architectural changes
---------------------

* Redesign of the HttpClient internals addressing all known
  major architectural shortcomings of the 3.x codeline

* Cleaner, more flexible and expressive API

* Better performance and smaller memory footprint due to a more
  efficient HTTP transport based on HttpCore. HttpClient 4.0 is
  expected to be 10% to 25% faster than HttpClient 3.x codeline

* More modular structure

* Pluggable redirect and authentication handlers

* Support for protocol incerceptors

* Improved connection management

* Improved support for sending requests via a proxy or a chain of
  proxies

* Improved handling redirects of entity enclosing requests

* More flexible SSL context customization

* Reduced intermediate garbage in the process of
  generating HTTP requests and parsing HTTP responses

-------------------

HttpClient 3.x features that have NOT yet been ported
-------------------
* NTLM authentication scheme

* RFC2965 cookie policy (Cookie2)

* Support for multipart MIME coded entities

-------------------

Changelog
-------------------

The following is a list of contributions tracked in JIRA.
Note that this is not a complete list of contributions or changes.
Since the API was redesigned completely, tracking everything outside
of the source code repository would have been too burdensome.

* [HTTPCLIENT-655] User-Agent string no longer violates RFC
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-541] Virtual host API redesign
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-614] Allow for different strategies when checking
  CN of x509 certificates
  Contributed by Julius Davies <juliusdavies at gmail.com>

* [HTTPCLIENT-136] Fixed inadequate proxy support
  Long standing architectural problem. Issue opened on 19/Dec/2002.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-63] Support for pluggable redirect and authentication handlers
  Long standing architectural problem. Issue opened on 15/Jul/2002.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-245] Fixed redirect handling. HttpClient can now automatically
  handle redirects of entity enclosing requests.
  Long standing architectural problem. Issue opened on 14/Jul/2003.
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-613] HTTPS connections now verify CN of x509 certificates
  Contributed by Julius Davies <juliusdavies at gmail.com>

* [HTTPCLIENT-497] Wire/header logger names consistent with class loggers
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-484] AuthSSLProtocolSocketFactory in the main distribution
  Contributed by Oleg Kalnichevski <olegk at apache.org>

* [HTTPCLIENT-589] Do not consume the remaining response content if
  the connection is to be closed
  Contributed by Roland Weber <rolandw at apache.org>

* [HTTPCLIENT-475] Support for unconnected sockets. HTTP requests can now be
  aborted while network socket is still being connected.
  Contributed by Roland Weber <rolandw at apache.org>