File: CHANGES.txt

package info (click to toggle)
hlint 2.1.10-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, buster, sid
  • size: 588 kB
  • sloc: haskell: 4,475; lisp: 86; makefile: 5
file content (737 lines) | stat: -rw-r--r-- 32,476 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
Changelog for HLint (* = breaking change)

2.1.10, released 2018-08-16
    #516, don't require a .hlint.yaml when running tests
    Prefer .hlint.yaml to HLint.hs for settings
    #513, add section links in the HTML report
2.1.9, released 2018-08-08
    Add QuickCheck fixities
    Warn on redundant EmptyCase extension
2.1.8, released 2018-07-06
    #509, remove incorrect suggestions around sequence/pure
2.1.7, released 2018-07-03
    #483, don't break quasi quotes when suggesting const
    #404, remove the "Unnecessary hiding" hint introduced in #338
    #162, make avoiding lambda with `infix` give a different name
    #507, rename id x ==> x to redundant id
    #286, improve the duplicate pragma message
    #399, suggest (& f) ==> f
    #136, don't suggest eta-reducing runST
    #345, add catMaybes/fmap ==> mapMaybe
    #345, add foldMap id ==> fold
    #364, suggest >> instead of >>= \_ ->
    #502, DeriveTraversable implies DeriveFoldable and DeriveFunctor
    Add hints about fusing traverse/map
    Better names for mapM/map fusion hints and others
    #498, change the output to say "Perhaps:" rather than "Why not:"
2.1.6, released 2018-06-16
    Match on explicit brackets at the root of a match expression
    #470, suggest TupleSections
    #496, suggest sequence/fmap ==> mapM
    #473, warn on redundant void, _ <- and return ()
    Make use of <$> more general, but in simpler cases
    Warn about returns in the middle of do blocks
    #471, suggest readTVarIO
    #468, suggest using sortOn/Down
    #458, document the restriction feature
    #494, don't suggest newtype for unboxed tuples
    #488, avoid warning about more test prefixes
2.1.5, released 2018-05-05
    #478, take account of deriving strategies for extension use
    #477, don't warn about unit_ as tasty-discover recommends it
2.1.4, released 2018-05-01
    Don't warn about redundant $ for a $ b{c=d}
2.1.3, released 2018-04-18
    Improve the performance of the camelCase hint
    Don't suggest camelCase for record fields
    Add a --timing flag to detect what is slow
2.1.2, released 2018-04-16
    #407, don't error on unknown extensions on the command line
    Require extra-1.6.6
    #464, add more hints for concatMap
    #462, ignore home directory when it isn't present
2.1.1, released 2018-03-24
    #457, suggest turning on LambdaCase if necessary
    #457, add RequiresExtension note
    #454, add fixities for the HSpec `should*` functions
    #455, add some more sequence hints
    #453, allow pure in a few Monad hints as well as return
    #451, add --with-group command line option
    #424, suggest Foldable.forM_ in a few more places
    #445, add suggestions for reader/state monad
    #443, suggest join (x <$> y) ==> x =<< y
2.1, released 2018-02-07
*   #433, make ideas span multiple modules/declarations
    #433, allow ignoring statement-level duplication hint
    #439, add more fixities for new base operators
    #437, --json output should be finite
    #425, avoid misparsing use of Gtk2Hs `on` function
    #353, detect unused results from for/traverse/sequenceA
    #428, add a few rules for the lens package
    #429, spot restricted functions in infix operators
    #427, don't eta reduce variables in the presence of quasi-quotes
    Improve the HTML slightly
    #416, add lens package fixities
2.0.15, released 2018-01-18
    #426, don't suggest removing brackets for "x . (x +? x . x)"
    #426, better results with haskell-src-exts-util-0.2.2
2.0.14, released 2018-01-14
    #376, apply the "use fmap" hint in fewer places
    #421, binaries available for OS X
2.0.13, released 2018-01-12
    #376, suggest <$> instead of x <- foo; return $ f x
    #401, suggest removing brackets for (f . g) <$> x
    Add Semigroup instances
2.0.12, released 2017-12-12
    Don't suggest Control.Arrow
    Upgrade to haskell-src-exts-1.20
2.0.11, released 2017-11-30
    #411, parse the YAML file with lots of HSE extensions turned on
    #408, use the same config file logic in argsSettings as in hlint
    Don't use unexported type synonyms in the public API
    #405, fix false positives on MagicHash due to unboxed literals
2.0.10, released 2017-11-03
    #377, suggest lambda case
    Add CodeClimate support
    #378, suggest map for degenerate foldr
    #395, suggest x $> y from x *> pure y and x *> return y
    #395, suggest x <$ y from pure x <* y and return x <* y
    #393, suggest f <$> m from m >>= pure . f and pure . f =<<
    #366, avoid the github API for prebuilt hlint, is rate limited
    #352, suggest maybe for fromMaybe d (f <$> x)
    #338, warn about things imported hidden but not used
    #337, add --git flag to additionally check files in git
    #353, suggest _ <- mapM to mapM_
    #357, warn on unnecessary use of MagicHash
2.0.9, released 2017-06-13
    #346, don't suggest explicit export lists
    #344, fix the API so it works with hlint.yaml by default
2.0.8, released 2017-05-21
    #342, add back support for - to mean stdin
2.0.7, released 2017-05-16
    #340, fix for directory arguments in the .hlint.yaml
2.0.6, released 2017-05-08
    Do statements are not redundant if they change an operator parse
    #333, simplify labels on Parse error, makes it easier to ignore
2.0.5, released 2017-04-19
    If the datadir is missing use data/ relative to the executable
    Fix test mode to obey --datadir
2.0.4, released 2017-04-17
    --default adds ignores for any warnings it finds
2.0.3, released 2017-04-12
    #312, suggest removing the DeriveAnyClass extension
    Suggest removing the DeriveLift extension
    Remove redundant parts from list comprehensions, e.g. [a | True]
    #326, fix up the bounds on the eta-reduce hint
2.0.2, released 2017-04-10
    #323, try and avoid malformatted JSON
    #324, use `backticks` in notes
    #324, remove double escaping in note for --json
    #322, fix the YAML syntax in default.yaml
2.0.1, released 2017-04-07
    #320, still read ./HLint.hs if it exists
2.0, released 2017-04-06
    #319, add a hint \x -> f <$> g x ==> fmap f . g
    Don't say how many hints were ignored
    Add a --default flag
    #314, allow arguments in YAML configuration files
    Add maybe False (== x) ==> (== Just x) hint, plus for /=
    Remove the ability to pass the file on stdin using - as the file
    Remove encoding from ParseFlags
    Remove the --encoding/--utf8 options, always use UTF8
    #311, suggest writeFile instead of withFile/hPutStr
    #288, add configurable restrictions
    Suggest using an export list on modules
    Look for nearby .hlint.yaml files to supply configuration
    Support YAML configuration files
    #308, don't suggest newtype for unboxed types
    Remove the import "hint" feature for hint inclusion
    Builtin hints do not need to be imported, can only be ignored
    Delete HLint2 API
    #290, add hints suggesting traverse/traverse_
    #303, detect unused OverloadedStrings extension
    #302, detect unused TupleSections extension
1.9.41, released 2017-02-09
    #299, warn in some cases when NumDecimals extension is unused
    #300, warn when LambdaCase extension is unused
    #301, when suggesting newtype remove strictness annotations
    #297, better testing that there isn't a performance regression
    #167, add -j flag for number of threads
    #292, add fst/snd . unzip ==> map fst/snd
    Don't suggest module export trick, breaks Haddock
1.9.40, released 2017-01-22
    #293, fix the JSON format of the output
1.9.39, released 2016-12-04
    #287, don't incorrectly suggest newtype
1.9.38, released 2016-11-24
    #279, suggest newtype instead of data
    #262, add rules to detect redundant castPtr calls
    Detect unused TypeApplications extension
    #277, don't enable TypeApplications extension by default
    Allow haskell-src-exts-1.19
    #276, remove multiple redundant parens in one go
    #160, add a --only CLI option
    #237, fix incorrect quasi quotes extension warning
    #257, better bang pattern hints
1.9.37, released 2016-08-08
    #255, don't suggest id @Int ==> @Int
    #252, avoid clashes with GHCJS in the interim
1.9.36, released 2016-07-25
    Require haskell-src-exts-1.18
    #249, suggest avoiding elem on singletons
1.9.35, released 2016-06-10
    #245, fix parse error reports
    #243, update hlint.ghci to work with modern GHC
    Require extra-1.4.9
1.9.34, released 2016-06-01
    #154, fix some incorrect line numbers in literate Haskell
    #161, fix literate Haskell and CPP
1.9.33, released 2016-05-30
    #240, remove type-incorrect "on" hint
    #234, warn about join seq
    #232, suggest <|> instead of mplus in a few cases
1.9.32, released 2016-03-23
    #53, require cpphs-1.20.1, has important fixes
    #224, treat select $ specially, as per esqueleto conventions
    #231, don't modify qualification on substitutions
    #229, add void/mapM_/forM_ hints
1.9.31, released 2016-03-01
    #222, don't suggest removing ~ if the Strict extension is on
1.9.30, released 2016-02-26
    #220, fix incorrect hints of foldr/foldl on a tuple accumulator
1.9.29, released 2016-02-25
    #219, add warnings about foldable methods on tuple
    Put warnings before suggestions in the HTML report
1.9.28, released 2016-02-04
    #215, spot newtype deriving inside classes
1.9.27, released 2016-02-01
    #203, avoid recompiling everything twice
    #213, don't suggest removing bang patterns on let
    Rename HintStructure to HintPattern
    #208, add an hlint function to the HLint3 API
    #1, warn about unused DefaultSignatures extension
    #137, add -XHaskell2010 and fix -XHaskell98
    Allow checking even if a function has different arities
    #193, don't warn on a -> (b -> c), it's sometimes sensible
    #182, make parse errors severity Error
    #181, warn on otherwise in a pattern variable
    #163, eta reduce fun x = f $ x
    #132, don't ever suggest liftM
    #99, downgrade built in hints, Error => Warning => Suggestion
    #99, add a Suggestion level severity
    #207, make sure you close file handles
    #205, add hint compare x y == EQ and /=
    #204, add hint concatMap id ==> concat
    #202, include refactorings is --json output
1.9.26, released 2016-01-02
    #200, fix all lint warnings
    #143, expose argsSettings
1.9.25, released 2015-11-24
    #192, fix stdin output and --refactor
1.9.24, released 2015-11-22
    #188, improve spotting redundant brackets around patterns
    #138, reenable redundant where hint
1.9.23, released 2015-11-19
    #184, require haskell-src-exts-1.17
    #183, allow test_ as a prefix
1.9.22, released 2015-10-28
    Don't suggest redundant lambda on view patterns
    Add --no-exit-code flag
    #174, don't suggest string literals
    #175, disable 'rec' stealing extensions by default
    #170, add hints for eta-reduced operators
    #149, integrate a --refactor flag
    #147, fix the -fglasgow-exts hint
    #140, better name for moving brackets to eliminate $
    Extra hints for <$>
    Remove a redundant fmap hint
    #131, add =<< rules in addition to >>=
1.9.21, released 2015-05-26
    #130, ignore a BOM if it exists
    #128, don't find files starting with . when searching directories
    Suggest concat even if the [] is written ""
1.9.20, released 2015-04-21
    #122, fix the zipWith/repeat hint
1.9.19, released 2015-03-26
    #119, don't remove RecursiveDo if they use the rec statement
    Add a suggestion concatMap/map ==> concatMap
1.9.18, released 2015-03-17
    More GHC 7.10 warnings and build support
1.9.17, released 2015-02-25
    #116, support hscolour-1.21
1.9.16, released 2015-01-09
    #108, make "hlint ." work again
1.9.15, released 2015-01-03
    #106, avoid warnings with GHC 7.10
    #105, build with GHC 7.10
1.9.14, released 2014-12-24
    #649, don't suggest const for values using RecordWildCards
1.9.13, released 2014-11-30
    #97, remove the encoding bits of the API
    #98, add an HLint3 prototype API
    #93, make the --quickcheck tests work on GHC 7.8
    Add --tempdir flag to the test mode
1.9.12, released 2014-11-09
    #96, fix the --utf8 flag
    Make Encoding an alias for TextEncoding
    Default to UTF8 encoding
1.9.11, released 2014-11-07
    #95, don't suggest camel case for names containing digits
    Add a dependency on the extra package
    #92, use a new way for determining the color default
    Add a dependency on ansi-terminal
1.9.10, released 2014-10-19
    Spot unsafePerformIO without NOINLINE
1.9.9, released 2014-10-13
    #89, fix compiling the executable with --flag=-gpl
1.9.8, released 2014-10-08
    #82, don't crash on XmlHybrid modules
    #88, allow avoiding HsColour, as it is GPL licensed
    #87, don't push if down, since it can be type incorrect
1.9.7, released 2014-10-02
    #86, don't use color unless $TERM claims to support it
1.9.6, released 2014-09-30
    #85, fix the free variable matching check for lambda
    #84, suggest fmap for Either
    Make --json put each hint on a different line
    Support -X for extensions to the hse mode
1.9.5, released 2014-09-14
    Remove support for GHC 7.2
    Upgrade to haskell-src-exts-1.16
1.9.4, released 2014-08-27
    #81, fixes for GHC 7.9
    #78, add hints for list patterns
    #72, make --color the default on Linux
1.9.3, released 2014-07-28
    #73, fix multithreading and exceptions
1.9.2, released 2014-07-23
    #68, add --no-summary
1.9.1, released 2014-07-21
    #65, add flip (>>=) ==> (=<<) and the reverse
    #61, add --json flag
1.9, released 2014-06-30
    Remove not (isControl x) ==> isPrint (not true for '\173')
    #57, warn on invalid pragmas
    Make the API pass and require comments
    #59, make sure qualified operators match properly
    Rename notTypeSafe annotation to noTypeCheck
    Remove an invalid rule suggesting tanh
    #13, add a --quickcheck flag to test the hints
    Add --typecheck flag to test mode to type check the hints
    Remove incorrect for intercalate to unlines
    #37, remove incorrect hint for isAlphaNum
    #45, add mapMaybe id ==> catMaybes
    #42, add some repeat hints
1.8.61, released 2014-04-14
    #40, allow haskell-src-exts-1.15
    Don't detect redundant Generics extension
1.8.60, released 2014-04-02
    #33, add --cpp-file to preinclude a file
    #34, add back --quiet flag
    #639, don't suggest evaluate, because not all Monad's are IO
    #31, delete the elem/notElem hints
    #30, remove weird "free module" matching
    #15, add prototype grep mode
    Change to make test a separate mode
    #12, more list based suggestions
    #637, turn off QuasiQuotes by default
1.8.59, released 2014-03-13
    #27, fix up directory file searching
1.8.58, released 2014-03-11
    Move the API to Language.Haskell.HLint2
    #638, ensure $! doesn't break strictness with strict fields
    #24, don't remove DeriveFunctor even when only on a newtype
    #22, turn off UnboxedTuples by default
    #21, strip /* C style */ comments
    #635 and #18, require cpphs-1.18.1
    Switch to CmdArgs for command line parsing
    Remove -x as a synonym for --cross
1.8.57, released 2014-02-04
    #6, add a preview of an API
    #331, improve parse error locations for literate Haskell
1.8.56, released 2014-01-30
    Remove support for GHC 6.12 and below
    #317, tone down the void hint
    #16, match not . not (and reverse . reverse etc)
    Suggest <$> instead of fmap f $ ...
    Tweak some priorities, make >=> a warn and void an error
    #3, make top of the file ANN pragmas work
    #10, add a suggestion to use unlines
    #11, add a few hints about characters
    #8, add CHANGES.txt to the Cabal package
1.8.55, released 2013-11-29
    #627, fix the UnboxedTuples extension warning
1.8.54, released 2013-11-28
    Fix a bug when suggesting const
1.8.53, released 2013-09-24
    Fix some corner cases when suggesting foldr etc.
    #517, don't introduce new free variables in a replacement
1.8.52, released 2013-09-24
    #2, Generic is not newtype derivable
1.8.51, released 2013-08-20
    Upgrade to haskell-src-exts-1.14
1.8.50, released 2013-08-18
    Eliminate upper bounds on all dependencies
    #617, fix up notIn to take account of Template Haskell variables
    #573, suggest removing various deriving language extensions
1.8.49, released 2013-07-23
    Remove ^^ ==> ** hint
    Remove a duplicate sqrt hint
    Ensure that --test failures throws an error
    Fix up the copyright year in --help
1.8.48, released 2013-07-16
    Brackets at the root of annotations are fine
    Reduce a few more lambda expressions
1.8.47, released 2013-06-28
    #613, compatibility with base-4.7
1.8.46, released 2013-06-06
    Remove incorrect isPrefixOf hints
    #586, add span/break/takeWhile/dropWhile hints
    #588, add sort/reverse hints
    #601, add replicate/map/repeat hints
    Add a hint about reverse/reverse
    Add side as an alias for _
    Add hint as an alias for error
1.8.45, released 2013-05-12
    #600, hints for unnecessary lazy annotations
1.8.44, released 2013-04-21
    #598, warn on unnecessary bang patterns
1.8.43, released 2013-01-27
    Change some hint error/warning levels
1.8.42, released 2013-01-23
    Allow cpphs-1.16
1.8.41, released 2013-01-19
    #586, add a rule for takeWhile/dropWhile ==> span
    #522, add hints for the state monad
    #499, fix up the test suite
    Fix the side conditions for the `isPrefixOf` hint
    Add hints about take/drop on non positive numbers
    Add isNat/isPos/isNeg/isNegPos as notes
    Make the notes a structured type
    Add --proof feature
    Retire the Prelude.catch hint
    Additional boolean equality hints
1.8.40, released 2013-01-06
    #585, lots of additional list based hints
1.8.39, released 2012-12-06
    #582, don't suggest renaming with trailingHashes#
    #578, treat _ bindings differently in lambdas
1.8.37, released 2012-12-01
    #575, allow cpphs-1.15
1.8.36, released 2012-11-27
    Make --with imply no default Hint files
1.8.35, released 2012-11-17
    #567, avoid duplicate hints around (.) hints
1.8.34, released 2012-11-06
    Switch license from GPL to BSD3
1.8.33, released 2012-10-23
    Lots more hints on laziness, foldable and a few others
    Use mapM_ etc in more situations, when using explicit >>=
1.8.32, released 2012-10-23
    Add notes about how to deal with imported fixites
    Add a --with flag for passing settings on the command line
    #563, make sure TypeSig hints get the right function name
    Update the copyright year to 2012
    #564, allow brackets and type signatures on annotations
    Add a note that about using !! if the index is negative
1.8.31, released 2012-08-18
    Avoid incomplete patterns when reading ANN pragmas
    #555, top-level expressions require TemplateHaskell
1.8.30, released 2012-07-11
    Add elemIndex/elemIndices hints
    Allow cpphs-1.14
    #551, allow case_ as a name with an underscore
1.8.29, released 2012-06-01
    Allow hscolor-1.20.*
    #574, add a hint to for mapM/zip ==> zipWithM
1.8.28, released 2012-04-01
    Fix a bug, >=> hint was missing check about removal of free var
1.8.27, released 2012-03-30
    Allow haskell-src-exts-1.13.*
1.8.26, released 2012-03-27
    Allow haskell-src-exts-1.12.*
    Don't suggest redundant brackets when turning ++ into :
    Add hints suggesting >=> and <=<
1.8.25, released 2012-03-25
    Update the copyright year in the Cabal file
    Allow transformers-0.3.*
1.8.24, released 2012-02-20
    #531, Make hlint.ghci well formed again
1.8.23, released 2012-02-05
    Add hints for redundant seq/evaluate using isWHNF
    #526, don't hint for return $! (x :: Int)
1.8.22, released 2012-02-04
    Add hint for $! where the RHS is not a variable
1.8.21, released 2012-01-26
    #508, add lots of hints from the base library
    #317, add hints for a >> return () to void
    Add a fromMaybe/fmap ==> maybe hint
    #304, don't backet tuple sections
    Add foldl (++) [] ==> concat
    #512, detect unnecessary case construct
    When finding hints, don't abort on a parse error
    #507, add exitSuccess hint
    #505, suggest record patterns
1.8.20, released 2011-11-29
    #500, make sure eta reduction has position information
1.8.19, released 2011-11-27
    #498, eta reduce even if there is a where block
    #497, don't produce an incorrect lambda when suggesting flip
1.8.18, released 2011-11-05
    #438, use Foo.Bar to mean Foo/Bar.hs
    Add a --path command line option to say where files live
    #441, avoid bad matches due to automatically eta reducing rules
    #489, import Foo as Foo is redundant
    #481, suggest liftM instead of fmap when using the Monad laws
1.8.17, released 2011-10-01
    #479, allow - as the file to specify using stdin
1.8.16, released 2011-09-28
    #478, allow cpphs-1.13.1
    Never suggest view patterns (they aren't sufficiently better)
    Don't suggest use of Data.Ord.comparing, using `on` is better
    Only suggest elem/notElem on 3 or more items
1.8.15, released 2011-08-13
    Add --cpp-ansi to turn on ANSI compat in cpphs
1.8.14, released 2011-08-12
    #455, GHC 7.2 compatibility
    Add lots of hints from Lennart Augustsson
1.8.13, released 2011-07-05
    #302, add a backup fixity analysis, if the HSE one fails
    Fix x /= y || x /= z ==> x `notElem` [y,z], should be &&
1.8.12, released 2011-07-03
    Allow cpphs-1.12
1.8.11, released 2011-06-18
    #440, suggest removing redundant brackets under do
    #439, don't add redundant brackets under do
1.8.10, released 2011-06-12
    Upgrade to hscolour-1.19
1.8.9, released 2011-05-26
    #436, add a hint about mapMaybe/map
    Upgrade to haskell-src-exts-1.11.1
    Add a --cross flag, to detect hints between multiple modules
    #428, don't suggest using String in an instance head
1.8.8, released 2011-04-03
    #384, suggest collapsing multiple imports/exports
    #374, don't suggest the removal of necessary brackets
    #337, suggest Control.Exception.catch instead of Prelude.catch
    #412, add hints based on Control.Exception
    #378, suggest removing fromInteger/fromIntegral on literals
    #369, add notes to a few hints about possible pitfalls
    #409, fix a few cases where definitions suggested themselves
    #410, Support test* as ignored items in settings files
    #414, add isLit* pattern, and hint about ^^ ==> **
    #420, make the suggestion to use let a warning
    #408, rework the when/unless hints, don't suggest on itself
    Add duplicate detector, for copy/pasted code
    #285, don't show duplicate filepath separators
    If the user enters directories containing no files then say
    Make suggesting curry/uncurry a warning instead of an error
1.8.7, released 2011-01-31
    Relax the transformers dependency, works with 0.0.* and 0.1.*
1.8.6, released 2011-01-27
    Export suggestionSeverity/Severity from the API
    Allow hint imports with "hlint", as well as the existing "hint"
1.8.5, released 2011-01-23
    Update the copyright year to 2011
    #400, support more encoding strings, give useful errors
    #401, rename the report template to report_template.html
    Replace filter f x /= [] with any f x, and 2 more similar
1.8.4, released 2011-01-12
    #308, allow haskell-src-exts-1.10.1, which parses Unicode better
    import qualified Char ==> import qualified Data.Char as Char
    #393, fix suggestion for import IO, requires more than System.IO
    #376, note that RecordWildCards implies DisambiguateRecordFields
1.8.3, released 2010-11-10
    Allow uniplate-1.6
    Switch from mtl to transformers
    #373, require haskell-src-exts-1.9.6
    Add a type signature for GHC 7
    Suggest [x | x <- xs] ==> xs, if x is a variable
1.8.2, released 2010-10-23
    #371, foo (\x -> y :: Int -> Int) is not a redundant bracket
    Add a hint to use just equality rather than isJust/fromJust
1.8.1, released 2010-10-15
    Massive speed up for files with many naming hints
    #361, keep module names when suggesting infix
    Add support for wildcard matching on module names
    #357, don't camel case suggest on FOO_A
    #370, fix building with GHC 6.10.4
    #313, upgrade to haskell-src-exts-1.9.4
    Workaround for #358, disable empty where hints
    #355, make "--ignore=Parse error" work
    Add --cpp-simple to run a simple CPP to strip lines begining #
    Add bracketing information if the parent is a case
    Suggest intercalate
1.8, released 2010-09-11
    Make --test --hint=file typecheck a file for valid hints
    #347, Suggest use of otherwise, instead of True, in pattern guards
    Add hints about redundant where statements
    Suggest removal of redundant guards
    Make hints about guards work on patterns/infix matches/case alts
    Make finding guards look a child functions
    Correctly collapse functions and lambdas using the same patterns
    Suggest promoting patterns bound to lambdas to functions
    Allow collapsing lambdas sharing pattern variables correctly
    #344, only give one warning for multiple collapsable lambdas
    #300, substantially improve module name resolution with imports
    BREAKING: imports in hint files require import "hint" HintFile
    #335, redundant id should only generate one warning
    Add a hint for using map (f &&& g)
    #328, for foo'bar suggest the naming fooBar
    #323, detect redundant brackets in field declarations
    #321, force the whole file before displaying a parse error
    Make --find more robust, fixes a potential parse error
1.7.3, released 2010-07-25
    Upgrade to hscolour-1.17
1.7.2, released 2010-06-11
    #318, match rules by expanding out (.)
    #319, don't remove lambdas on the right of infix operators
1.7.1, released 2010-06-07
    Add a --quiet flag, to supress stdout (mainly for API users)
1.7, released 2010-06-06
    Add support for HLint.Builtin.All
    Fix crash on (\x -> x)
    Make the library correctly honour the data directory
    Improve the manual, mainly language changes and hyperlinking
    Fix a bug in ListRec, could have _recursive_ in the result
    #315, spot list rec hints through $ and let
    Add hints based on (f $) ==> f, and change in ListRec hints
    Changes to the lambda suggestions, now gives a few more hints
    Don't suggest importing modules in old-locale/old-time
    Make the API return the suggestions, rather than just the count
    #278, add -XNoCpp to disable the C preprocessor
    #279, add -XExt/-XNoExt to choose extensions
    Remove some redundant brackets in type replacements
    #286, remove redundant brackets in match
    Additional bracket removal, application under sections
    #299, rework hints to use flip (suggest infix in some cases)
    Add some fromMaybe hints
    Fix bug where hints didn't always get names
    #306, make --find use the hints if there are files specified
    Upgrade to haskell-src-exts-1.9
    #303, allow fixities to be specified in hint files
1.6.21, released 2010-04-07
    #287, warn about Haskell 98 imports
    #297, add a hint to use mplus
    #288, detect redundant brackets under a lambda
    #302, remove error about ambiguous fixities
    #281, enhance the redundant monad return warnings
    #293, eliminate _noParen_ from the result
    #284, eliminate ViewPatterns from FindHints, hits compiler bug
    #283, don't suggest removal of RecordWildCards
    Add some hints about concat and (++)
    #273, require haskell-src-exts >= 1.8.2
1.6.20, released 2010-02-10
    #275, add more acknowledgements (still very incomplete)
    #254, remove the foldr1/map hint
    Compress nested lambdas, \x -> \y -> ... ==> \x y -> ...
    Fix minor bug on \x -> \x -> foo x x
    #274, add redundant bracket inside record update/construct
    #272, don't mess up creating sections from qualified names
    Add some hints to suggest elem
    Add Paths_hlint to the .cabal file, or the library doesn't link
    #271, rewrite the match engine in terms of SYB
1.6.19, released 2010-02-06
    #251, add automatic definition hunting with --find
    #268, rewrite the (.) expansion in hints to fix various bugs
    #269, replacing a case with an if should generate one hint
    Document the ANN pragmas
    Require haskell-src-exts-1.8.1
1.6.18, released 2010-02-02
    Remove a hint replacing do x <- foo; bar x with foo >>= bar
    #263, support CPP files more fully
    Upgrade to hscolour-1.16
    Upgrade to cpphs-1.11
1.6.17, released 2010-02-01
    Force cpphs-1.10, since 1.11 breaks the interface
    More hints from the Data.Maybe module
    #262, add support for the TupleSections extension
    #264, upgrade to haskell-src-exts-1.8.*, fixes QuasiQuote pos
    Upgrade to cpphs 1.10
    #266, don't match hints that appear to be the definitions
    #248, tone down the eta reduction hints
    Add support for WARNING pragma's to reclassify hints
    Support ignoring hints on types
    Give better error messages on incorrect settings files
    Add temporary haskell-src-exts 1.5/1.6 compatibility
    #327, add hints to use expressions infix
    #240, if a then True else False no longer suggests a || False
    Upgrade to haskell-src-exts-1.7.*
    #236, support changing the text encoding with --encoding/--utf8
    #260, generate nicer lambdas for (($) . f)
    Add the hint (($) . f) ==> (f $)
1.6.16, released 2010-01-23
    Further performance enhancements (for details see my blog)
    Update to uniplate 1.5.* (fixes performance bug)
    Improve speed based on profiling (roughly twice as fast)
    #245, add hints for excess brackets in types and patterns
    Make 100% redundant brackets an error
    Fix bug where qualified names did not match
    Remove dependency on SYB
    #234, allow TH top-level splices for ignore
    #110, add tests for ignoring commands
1.6.15, released 2010-01-12
    Upgrade to uniplate 1.4.* (fixes performance bug)
    #192, make HLint into a fairly basic library
    Add --datadir to allow running with a different data directory
    #254, eliminate foldl/map fusion rules (which were untrue)
    Fix a few typos in the hint rules
    Upgrade to uniplate 1.3.*
    Upgrade to haskell-src-exts 1.6.*
    Add a .ghci file snippet
    #247, Fix bug matching expressions containing position info
1.6.14, released 2010-01-05
    Upgrade to haskell-src-exts 1.5.*
1.6.13, released 2010-01-05
    #246, redundant brackets in [(...)]
    Add fold/map fusion hints
    Don't suggest namings that are already used in the module
    #239, Add suggestions of and/or on foldl
    Add --extension flag, to find files not named .hs/.lhs
    Only activate the builtin hints when they are imported
    Fix matching bug, said "Use flip" on "\v -> f v . g"
    Suggest changing some pattern guards to view patterns
1.6.12, released 2009-11-06
    Fix a bug with ignored hints being written to reports
    Upgrade to haskell-src-exts 1.3.*
    #228, suggest let instead of <- return in do statements
    #229, suggest comparing
    Qualify all non-Prelude function suggestions
    #225, Add redundant flip hint
    #226, Add ((+) x) ==> (x +)
    #223, TemplateHaskell may allow other extensions via code
    Fix incorrect suggestion on do x <- f ; g x x
    A few small additional hints (use flip, redundant id)
1.6.11, released 2009-09-13
    Don't perform type eta reduction
1.6.10, released 2009-09-13
    Fix bug, eta reduction on chained infix operators, i.e. x#y#z
1.6.9, released 2009-09-12
    #217, don't suggest eta reduction on - or +
    Fix bug, PatternGuards under case alternatives were ignored
1.6.8, released 2009-09-07
    #213, upgrade to cpphs 1.9
    Add suggestion to replace lambda with operator sections
    Fix bug, ''Name decided TemplateHaskell was unnecessary
    HPC statistics, and increase in test coverage
    Fix bug, import A as Y; import A gave import A, missing the as Y
    Fix bug, type Foo a = Bar a a incorrectly suggested eta reduce
1.6.7, released 2009-08-31
    NOTE: #213 has not been fixed, cpphs can cause hangs
    Add threaded flag to Cabal to disable -threaded mode
    #212, fix crash
    Fix bug, incorrectly decided TemplateHaskell was unnecessary
1.6.6, released 2009-08-29
    Upgrade to hscolour 1.15
    Add a hint for using unless
    #211, add hints for unused extensions
    #188, add pragma hints
    Add a few additional hints (Functor laws)
    #137, add cpphs support
    #189, give hints for redundant imports
    Upgrade to haskell-src-exts 1.1.*
1.6.5, released 2009-08-02
    #206, better presentation of parse errors
    #208, give the correct precedence to ==> in source files
1.6.4, released 2009-07-12
    Start of changelog