Redis 3.2 release notes
=======================

--------------------------------------------------------------------------------
Upgrade urgency levels:

LOW:      No need to upgrade unless there are new features you want to use.
MODERATE: Program an upgrade of the server, but it's not urgent.
HIGH:     There is a critical bug that may affect a subset of users. Upgrade!
CRITICAL: There is a critical bug affecting MOST USERS. Upgrade ASAP.
--------------------------------------------------------------------------------

================================================================================
Redis 3.2.6     Released Tue Dec 06 09:33:29 CET 2016
================================================================================

Upgrade urgency MODERATE: GEORADIUS, BITFIELD and Redis Cluster minor fixes.

This release mainly fixes three bugs:

1. A bug with BITFIELD that may cause the bitmap corruption when setting offsets
   larger than the current string size.

2. A GEORADIUS bug that may happen when using very large radius lengths, in
   the range of 10000km or alike, due to wrong bounding box calculation.

3. A bug with Redis Cluster which crashes when reading a nodes configuration
   file with zero bytes at the end, which sometimes happens with certain ext4
   configurations after a system crash.

The following is the list of commits:

antirez in commit f20f3ea:
 Geo: improve fuzz test.
 1 file changed, 11 insertions(+), 3 deletions(-)

antirez in commit 8c22086:
 Geo: fix computation of bounding box.
 2 files changed, 33 insertions(+), 27 deletions(-)

antirez in commit 92958df:
 Cluster: handle zero bytes at the end of nodes.conf.
 1 file changed, 1 insertion(+), 1 deletion(-)

antirez in commit 0ee28ae:
 Test: regression test for #3564 added.
 1 file changed, 9 insertions(+)

sunhe in commit 289fadb:
 bitops.c/bitfieldCommand: update higest_write_offset with check
 1 file changed, 3 insertions(+), 2 deletions(-)

jybaek in commit f4f7d2c:
 Add missing fclose()
 1 file changed, 1 insertion(+)

================================================================================
Redis 3.2.5     Released Wed Oct 26 09:16:40 CEST 2016
================================================================================

Upgrade urgency LOW: This release only fixes a compilation issue due to the
                     missing -ldl at linking time.

zach shipko in commit 4736407:
 BSDs don't have -ldl
 1 file changed, 15 insertions(+), 5 deletions(-)

antirez in commit 9ada818:
 Fix modules compilation when libc malloc is used.
 1 file changed, 2 insertions(+), 2 deletions(-)

================================================================================
Redis 3.2.4     Released Mon Sep 26 08:58:21 CEST 2016
================================================================================

Upgrade urgency CRITICAL: Redis 3.2 and unstable contained a security
                          vulnerability fixed by this release.

Hello Redis Wizards of the Memory Stores Empire,

this is a Redis critical release in order to fix a security issue
which is documented clearly here:

    https://github.com/antirez/redis/commit/6d9f8e2462fc2c426d48c941edeb78e5df7d2977

Thanks to Cory Duplantis of Cisco Talos for reporting the issue.

IMPACT:

The gist is that using CONFIG SET calls (or by manipulating redis.conf)
an attacker is able to compromise certain fields of the "server" global
structure, including the aof filename pointer, that could be made pointing
to something else. In turn the AOF name is used in different contexts such
as logging, rename(2) and open(2) syscalls, leading to potential problems.

Please note that since having access to CONFIG SET also means to be able
to change the AOF filename (and many other things) directly, this issue
actual real world impact is quite small, so I would not panik: if you
have CONFIG SET level of access, you can do more and more easily.

AFFECTED VERSIONS:

All Redis 3.2.x versions are affected.

OTHER CHANGES IN THIS RELEASE:

This release also includes other things:

* TCP binding bug fixed when only certain addresses were available for
a given port.

* A much better crash report that includes part of the Redis binary:
this will allow to fix bugs even when we just have a crash log and
no other help from the original poster oft the issue.

* A fix for Redis Cluster redis-trib displaying of info after creating
a new cluster.

Please check the following list of commits for credits about who did what.
Thanks to all the contributors and a special thank to Oran Agra for the
help in this release.

List of commits:

antirez in commit 0539634:
 Security: CONFIG SET client-output-buffer-limit overflow fixed.
 1 file changed, 5 insertions(+), 3 deletions(-)

antirez in commit c01abcd:
 fix the fix for the TCP binding.
 1 file changed, 15 insertions(+), 10 deletions(-)

oranagra in commit a6d0698:
 fix tcp binding when IPv6 is unsupported
 2 files changed, 14 insertions(+), 10 deletions(-)

antirez in commit 22b6c28:
 debug.c: no need to define _GNU_SOURCE, is defined in fmacros.h.
 1 file changed, 1 deletion(-)

antirez in commit 9e9d398:
 crash log - improve code dump with more info and called symbols.
 1 file changed, 59 insertions(+), 20 deletions(-)

oranagra in commit 3745c5d:
 crash log - add hex dump of function code
 1 file changed, 22 insertions(+)

antirez in commit c1cc07b:
 Sentinel example config: warn about protected mode.
 1 file changed, 16 insertions(+), 1 deletion(-)

rojingeorge in commit 011dc9f:
 Display the nodes summary once the cluster is established using redis-trib.rb
 1 file changed, 5 insertions(+)

Guo Xiao in commit f4e3a94:
 Use the standard predefined identifier __func__ (since C99)
 1 file changed, 1 insertion(+), 1 deletion(-)

================================================================================
Redis 3.2.3     Released Tue Aug 02 10:55:24 CEST 2016
================================================================================

Upgrade urgency MODERATE: Fix replication delay and redis-cli security issue.

Hello,

this is a minor release of Redis addressing two bugs:

1. There was an inverted if statement logic problem in replication.c causing
   a replication delay. This is not an actual problem since things work
   as expected, but worth to fix ASAP anyway.

2. Redis-cli created the history file with insecure permissions, allowing
   reding from the file. This was actually a bug in linenoise which is
   now fixed. The applied fix is from Chris Lamb.

List of commits:

Qu Chen in commit e67ad1d:
 Fix a bug to delay bgsave while AOF rewrite in progress for replication
 1 file changed, 1 insertion(+), 1 deletion(-)

antirez in commit 7153668:
 Update linenoise to fix insecure redis-cli history file creation.
 1 file changed, 6 insertions(+), 1 deletion(-)

================================================================================
Redis 3.2.2     Released Thu Jul 28 14:14:54 CEST 2016
================================================================================

Upgrade urgency MODERATE: A Redis server and a Sentinel crash are now fixed.
                          GEORADIUS errors in reported entries are fixed.

Hi all! Redis 3.2.2 is finally out with non trivial bugfixes and a few new
features. Let's start from the bugs:

1. There was a bug in the List type implementation, able to cause the
   crash of the server under certain (non trivial to replicate) circumstances
   when the LSET command was used. Now the bug is fixed and a new stress tester
   that was able to easily trigger the bug was added to the test suite.

2. Redis Sentinel, when monitoring multiple masters, could crash after
   a Sentinel address update event.

3. Redis Sentinel now checks slaves INFO state more often when disconnected.
   This is not really a bug fix, but may allow to more easily detect that
   a slave is able to fail over its master reducing certain delays.

4. It was possible, under a variety of conditions, that the AOF and RDB children
   process could spawn at the same time. This is known to trash disk I/O,
   AOF performances, and to ultimately create latency in the Redis server.
   Normally Redis avoids to have the two writing children at the same time, but
   there were edge cases discovered by Oran Agra (that also co-authored the
   fix with me) where the double-fork could happen. In order to fix this bug
   non trivial changes to the replication code were operated, however it was
   important to back port this fix into 3.2.2 because the bug could lead to
   bad latency experiences in certain cases.

5. Many GEORADIUS bugs are now fixed \o/. This started as a failing CI
   test. I grepped for more clues and there were a number of random failures
   in the points reported by GEORADIUS. The errors were found to be related
   to three different bugs (one of these was a bug in the test itself).
   It's not a critical bug: the effect is to, sometimes, don't report objects
   that are near the radius, but only with specific sets of coordinates
   and radius settings. However now the issues are fixed and the error
   vectors were added as regression tests.

And now the good news (not that bug fixes are not good...), that is, the
new features!

1. Now slaves support the slave-announce-ip and slave-announce-port options.
   Using these features a slave can be reported by the master `INFO` output
   and `ROLE` command as having arbitrary IP and port. This allows to have
   Sentinel deployments when working with containers or NAT-ed environments
   more easily.

2. The RDB check utlity is now part of Redis and uses the same RDB code that
   Redis uses in order to load the dataset in memory, so a given version
   of Redis is always able to check the RDB it produced... without another
   external check tool which is supposed to be taken in sync with the
   rdb.c implementation. This in turn also means that the new RDB checking
   is able to spot more complex bugs, since it really loads the dataset
   instead of just skipping bytes.

About the redis-check-dump utility, now it is also able to show certain
information about the RDB file, like the version that produced it, when
it was produced, and so forth. Example:

    ./redis-check-rdb dump.rdb
    [offset 0] Checking RDB file dump.rdb
    [offset 32] AUX FIELD redis-ver = '3.2.2'
    [offset 46] AUX FIELD redis-bits = '64'
    [offset 58] AUX FIELD ctime = '1469710178'
    [offset 73] AUX FIELD used-mem = '1186528'

The ability to check how much memory was used by the instance that produced
the RDB file can be especially useful.

For credits and the full change log, see the list of commits below, that was
modified in order to be a bit less verbose compared to the last releases.

Enjoy!
Salvatore

antirez in commit 0a45fbc:
 Ability of slave to announce arbitrary ip/port to master.
 6 files changed, 129 insertions(+), 17 deletions(-)

antirez in commit c3982c0:
 redis-benchmark: new option to show server errors on stdout.
 1 file changed, 17 insertions(+), 1 deletion(-)

antirez in commit fdafe23:
 Multiple GEORADIUS bugs fixed.
 6 files changed, 177 insertions(+), 21 deletions(-)

antirez in commit a1bfe22:
 Replication: when possible start RDB saving ASAP.
 1 file changed, 8 insertions(+), 2 deletions(-)

antirez in commit 7ca69af:
 Sentinel: new test unit 07 that tests master down conditions.
 1 file changed, 68 insertions(+)

antirez in commit 5b5e652:
 Sentinel: check Slave INFO state more often when disconnected.
 2 files changed, 10 insertions(+), 3 deletions(-)

antirez in commit 21cffc2:
 Avoid simultaneous RDB and AOF child process.
 4 files changed, 51 insertions(+), 8 deletions(-)

antirez in commit 017378e:
 Replication: start BGSAVE for replication always in replicationCron().
 1 file changed, 15 insertions(+), 12 deletions(-)

antirez in commit 940be9a:
 Regression test for issue #3333.
 1 file changed, 6 insertions(+)

antirez in commit 21736b4:
 getLongLongFromObject: use string2ll() instead of strict_strtoll().
 1 file changed, 1 insertion(+), 6 deletions(-)

antirez in commit 0b748e9:
 redis-cli: check SELECT reply type just in state updated.
 1 file changed, 1 insertion(+), 1 deletion(-)

sskorgal in commit 1158386:
 Fix for redis_cli printing default DB when select command fails.
 1 file changed, 1 insertion(+), 1 deletion(-)

antirez in commit 026f9fc:
 Sentinel: fix cross-master Sentinel address update.
 1 file changed, 9 insertions(+), 2 deletions(-)

antirez in commit 11523b3:
 CONFIG GET is now no longer case sensitive.
 1 file changed, 12 insertions(+), 12 deletions(-)

antirez in commit f5a7f4f:
 Fix test for new RDB checksum failure message.
 1 file changed, 1 insertion(+), 1 deletion(-)

antirez in commit 4c6ff74:
 Make tcp-keepalive default to 300 in internal conf.
 1 file changed, 1 insertion(+), 1 deletion(-)

antirez in commit 27dbec2:
 In Redis RDB check: more details in error reportings.
 1 file changed, 24 insertions(+), 13 deletions(-)

antirez in commit 41f3004:
 In Redis RDB check: log decompression errors.
 2 files changed, 23 insertions(+), 2 deletions(-)

antirez in commit 278fe3e:
 In Redis RDB check: log object type on error.
 1 file changed, 27 insertions(+), 2 deletions(-)

antirez in commit a117dfa:
 Added a trivial program to randomly corrupt RDB files in /utils.
 1 file changed, 44 insertions(+)

antirez in commit f5110c3:
 In Redis RDB check: minor output message changes.
 1 file changed, 4 insertions(+), 1 deletion(-)

antirez in commit 35b18bf:
 In Redis RDB check: better error reporting.
 4 files changed, 71 insertions(+), 14 deletions(-)

antirez in commit f578f08:
 In Redis RDB check: initial POC.
 2 files changed, 189 insertions(+), 647 deletions(-)

tielei in commit 7f1e1ca:
 A string with 21 chars is not representable as a 64-bit integer.
 1 file changed, 2 insertions(+), 2 deletions(-)

antirez in commit 7a3a595:
 Test: new randomized stress tester for #3343 alike bugs.
 1 file changed, 27 insertions(+), 2 deletions(-)

antirez in commit c75ca10:
 Stress tester WIP.
 1 file changed, 3 insertions(+)

antirez in commit 2c3fcf8:
 Regression test for issue #3343 exact min crash sequence.
 1 file changed, 16 insertions(+)

antirez in commit 7041967:
 Fix quicklistReplaceAtIndex() by updating the quicklist ziplist size.
 1 file changed, 1 insertion(+)

================================================================================
Redis 3.2.1     Released Fri Jun 17 15:01:56 CEST 2016
================================================================================

Upgrade urgency HIGH: Critical fix to Redis Sentinel, due to 3.2.0 regression
                      compared to 3.0.

Hey, this is Redis 3.2.1, and this release should bring some grain of
maturity to Redis 3.2. The list of commits following this note will tell
you the details, but the main things addressed in this release are the
following:

1. A critical bug in Sentinel was hopefully fixed. During the big 3.2
   refactoring of Redis Sentinel, in order to implement connection sharing
   to make Sentinel able to scale better (few Sentinels to monitor many
   masters), a bug was introduced that mis-counted the number of pending
   commands in the Redis link. This in turn resulted into an inability to talk
   with certain Redis instances. A common result of this bug was the inability
   of Redis Sentinel to reconfigure back the old master, after a failover,
   when it is reachable again, as the slave of the new master. This was due
   to the inability to talk with the old master at all.

2. BITFIELD bugs fixed.

3. GEO commands fixes on syntax errors and edge cases.

4. RESTORE now accepts dumps generated by older Redis versions.

5. Jemalloc now is really configured to save you memory, for a problem a
   change in the jemalloc configuration did not really survived when the
   3.2.0 release was finalized.

6. TTL and TYPE command no longer alter the last access time of a key, for
   LRU evictions purposes. A new TOUCH command was introduced *just* to
   update the access time of a key.

7. A bug was fixed in redis-cli, that connected to the instance running on the
   port 6379 if there was one, regardless of what was specified.

8. TCP keep alive is now enabled by default. This should fix most ghost
   connections problems without resulting in any practical change in otherwise
   sane deployments.

9. A Sentinel crash that could happen during failovers was fixed.

And of course, more minor things that you can read in the detailed log
below. There are still reported bugs for 3.2 that were not fixed in this
release, but nothing critical AFAIK, and I wanted to release this one ASAP,
so likely a new release will not be too far.

Enjoy,
Salvatore

+-------------------------------------------------------------------------------
| config set list-max-ziplist-size didn't support negative values, unlike config file
| By oranagra, 2016-05-22 20:35:14 +0300
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/8207e828043e37a0d7e058530d2886bb3ff395ff


 src/config.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

+-------------------------------------------------------------------------------
| Fix Sentinel pending commands counting.
| By antirez, 2016-06-16 19:24:34 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/6ad0371c9b4206a7a6692d50c9a301457baf9b6d

This bug most experienced effect was an inability of Redis to
reconfigure back old masters to slaves after they are reachable again
after a failover. This was due to failing to reset the count of the
pending commands properly, so the master appeared fovever down.

Was introduced in Redis 3.2 new Sentinel connection sharing feature
which is a lot more complex than the 3.0 code, but more scalable.

Many thanks to people reporting the issue, and especially to
@sskorgal for investigating the issue in depth.

Hopefully closes #3285.

 src/sentinel.c | 1 +
 1 file changed, 1 insertion(+)

+-------------------------------------------------------------------------------
| redis-cli: really connect to the right server.
| By antirez, 2016-06-16 17:23:31 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/58f1d446c35e8fe62df7c9ebe10f3c40a386c022

I recently introduced populating the autocomplete help array with the
COMMAND command if available. However this was performed before parsing
the arguments, defaulting to instance 6379. After the connection is
performed it remains stable.

The effect is that if there is an instance running on port 6339,
whatever port you specify is ignored and 6379 is connected to instead.
The right port will be selected only after a reconnection.

Close #3314.

 src/redis-cli.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

+-------------------------------------------------------------------------------
| Remove debug printing
| By Jan-Erik Rediger, 2016-05-21 13:50:01 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/b6007b324b81dbd4ffe519b3bdb19ab65fbb407f


 src/redis-cli.c | 3 ---
 1 file changed, 3 deletions(-)

+-------------------------------------------------------------------------------
| RESTORE: accept RDB dumps with older versions.
| By antirez, 2016-06-16 15:53:57 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/f592b4d3178963878084a522b4fd050772c335ae

Reference issue #3218.

Checking the code I can't find a reason why the original RESTORE
code was so opinionated about restoring only the current version. The
code in to `rdb.c` appears to be capable as always to restore data from
older versions of Redis, and the only places where it is needed the
current version in order to correctly restore data, is while loading the
opcodes, not the values itself as it happens in the case of RESTORE.

For the above reasons, this commit enables RESTORE to accept older
versions of values payloads.

 src/cluster.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| CLIENT error message was out of date
| By oranagra, 2016-05-23 11:42:21 +0300
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/047ced4473ee35485e22e45db8b8b4a272bf1177


 src/networking.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| fix georadius returns multiple replies
| By oranagra, 2016-05-23 13:58:50 +0300
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/14e04847ac2960aefe31dccbec63d2503cf09ca5


 src/geo.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

+-------------------------------------------------------------------------------
| Minor aesthetic fixes to PR #3264.
| By antirez, 2016-06-16 12:54:33 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/bd23ea3f9f3defbbdf512864ee1a88fd02665a7f

Comment format fixed + local var modified from camel case to underscore
separators as Redis code base normally does (camel case is mostly used
for global symbols like structure names, function names, global vars,
...).

 src/bitops.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

+-------------------------------------------------------------------------------
| check WRONGTYPE in BITFIELD before looping on the operations.
| By oranagra, 2016-05-24 23:31:36 +0300
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/2a3ee58ec73b6abdeeb4890937b25191119bce35

optimization: lookup key only once, and grow at once to the max need
fixes #3259 and #3221, and also an early return if wrongtype is discovered by SET

 src/bitops.c | 27 ++++++++++++++++++---------
 1 file changed, 18 insertions(+), 9 deletions(-)

+-------------------------------------------------------------------------------
| fix crash in BITFIELD GET on non existing key or wrong type see #3259
| By oranagra, 2016-05-24 14:52:43 +0300
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/a2e27b810edfad18b3ecc9c176a4606f94a2f0e4

this was a bug in the recent refactoring: bee963c4459223d874e3294a0d8638a588d33c8e

 src/bitops.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

+-------------------------------------------------------------------------------
| fix check when can't send the command to the promoted slave
| By MOON_CLJ, 2016-05-26 13:10:12 +0800
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/26555f5e008b099b888ef39cabec632f4b31a038


 src/sentinel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Test TOUCH and new TTL / TYPE behavior about object access time.
| By antirez, 2016-06-15 17:15:18 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/f1c237cb6a647ad5400b0ebce124fd9802ea7f89


 tests/test_helper.tcl          |  1 +
 tests/unit/introspection-2.tcl | 23 +++++++++++++++++++++++
 2 files changed, 24 insertions(+)

+-------------------------------------------------------------------------------
| GETRANGE: return empty string with negative, inverted start/end.
| By antirez, 2016-06-15 12:48:58 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/d4831e328759bf5bd07c2c6e6ce1d60e84ba196f


 src/bitops.c   | 4 ++--
 src/t_string.c | 4 ++++
 2 files changed, 6 insertions(+), 2 deletions(-)

+-------------------------------------------------------------------------------
| Remove additional round brackets from fix for #3282.
| By antirez, 2016-06-15 12:16:39 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/9942070f5a41fa3bc953e9628a7248aeb7c0befa


 src/bitops.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| bitcount bug:return non-zero value when start > end (both negative)
| By wenduo, 2016-05-30 16:21:08 +0800
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/f45fa5d05f47a5729786a69962119c9b3dc12645


 src/bitops.c | 4 ++++
 1 file changed, 4 insertions(+)

+-------------------------------------------------------------------------------
| Regression test for #3282.
| By antirez, 2016-06-15 11:49:49 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/0cb86064e602a093a23b56943a7321fe1af64984


 tests/unit/bitops.tcl | 10 ++++++++++
 1 file changed, 10 insertions(+)

+-------------------------------------------------------------------------------
| TTL and TYPE LRU access fixed. TOUCH implemented.
| By antirez, 2016-06-14 15:33:59 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/b23aa6706ac79a1c86c64aef07bd35e38f10f842


 src/db.c     | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++++-------
 src/server.c |  1 +
 src/server.h |  6 +++++-
 3 files changed, 60 insertions(+), 8 deletions(-)

+-------------------------------------------------------------------------------
| redis-cli help.h updated.
| By antirez, 2016-06-14 14:45:48 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/6e4204fec9c78f3300d887ebc3db014df2c8b33e


 src/help.h | 43 +++++++++++++++++++++++++++++--------------
 1 file changed, 29 insertions(+), 14 deletions(-)

+-------------------------------------------------------------------------------
| Fix GEORADIUS wrong output with radius > Earth radius.
| By antirez, 2016-05-30 12:45:49 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/bb43f4cab2f756c0412ca2b94d9e29c3db5025ab

Close #3266

 deps/geohash-int/geohash_helper.c | 2 ++
 1 file changed, 2 insertions(+)

+-------------------------------------------------------------------------------
| Geo: fix typo in geohashEstimateStepsByRadius().
| By antirez, 2016-05-30 15:31:19 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/16102bc0af0912a0c9a92aedddf796eb24a80b9e

I'm the author of this line but I can't see a good reason for it to
don't be a typo, a step of 26 should be valid with 52 bits per
coordinate, moreover the line was:

    if (step > 26) step = 25;

So a step of 26 was actually already used, except when one of 27 was
computed (which is invalid) only then it was trimmed to 25 instead of
26.

All tests passing after the change.

 deps/geohash-int/geohash_helper.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Avoid undefined behavior in BITFIELD implementation.
| By antirez, 2016-05-31 11:52:07 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/014bf8044285c6d401d83e6e24829d276ab837f9

Probably there is no compiler that will actaully break the code or raise
a signal for unsigned -> signed overflowing conversion, still it was
apparently possible to write it in a more correct way.

All tests passing.

 src/bitops.c | 23 +++++++++++++++--------
 1 file changed, 15 insertions(+), 8 deletions(-)

+-------------------------------------------------------------------------------
| Now that SPOP can be called by scripts use BLPOP on 's' flag test.
| By antirez, 2016-05-31 16:43:21 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/b4e5e2ec1ad7e9d1f4e7e559b61e0ecd4e50f2da


 tests/unit/scripting.tcl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Test: run GEO tests by default.
| By antirez, 2016-05-31 16:43:49 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/df419281a19e13429b27814a3e384f6f029c3519

Thanks to @oranagra for noticing it was missing.

 tests/test_helper.tcl | 1 +
 1 file changed, 1 insertion(+)

+-------------------------------------------------------------------------------
| Enable tcp-keepalive by default.
| By antirez, 2016-06-13 12:03:14 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/40cfe13141c7178d22fd43e4ffbecc37686e0b43


 redis.conf | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

+-------------------------------------------------------------------------------
| fix some compiler warnings
| By Pierre Chapuis, 2016-06-05 15:34:43 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/a650aaaf4f074ec428b450ef88799db1dcd34b0f


 src/bitops.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

+-------------------------------------------------------------------------------
| Fixed typo in Sentinel compareSlavesForPromotion() comment.
| By antirez, 2016-06-10 09:15:01 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/3fd4baf1e77f125a306d57b788b72de5026c0564


 src/sentinel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| fix comment "b>a" to "a > b"
| By andyli, 2016-06-07 14:42:50 +0800
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/8d029a5950f4ef40723c02b5c486b171aff0189c


 src/sentinel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| fix pidfile in redis.conf
| By bogdanvlviv, 2016-04-19 14:43:06 +0300
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/6937f5960d1803ca0eda1ab6f4bc60023f50c914


 redis.conf | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Include 'fd_set' type name
| By jspraul, 2016-06-07 16:46:00 -0400
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/b5758cc5ce6c51ff75c86f9216214fe4d5e4c257

Fix an MSYS2-build-breaking error: unknown type name ‘fd_set’
 src/ae_select.c | 1 +
 1 file changed, 1 insertion(+)

+-------------------------------------------------------------------------------
| Allow SPOP from Lua scripts
| By Itamar Haber, 2016-05-28 20:01:46 +0300
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/620783e3b582e9ba6e1d8fbd47987281ce0b6317

The existing `R` flag appears to be sufficient and there's no apparent reason why the command should be blocked.
 src/server.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| minor fixes - mainly signalModifiedKey, and GEORADIUS
| By oranagra, 2016-05-09 09:12:38 +0300
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/603234076f4e59967f331bc97de3c0db9947c8ef


 src/geo.c    |  1 +
 src/sds.c    |  8 ++++----
 src/server.c |  2 +-
 src/server.h |  3 +--
 src/t_set.c  |  9 ++++++---
 src/t_zset.c | 12 ++++++------
 6 files changed, 19 insertions(+), 16 deletions(-)

+-------------------------------------------------------------------------------
| Code to access object string bytes repeated 3x refactored into 1 function.
| By antirez, 2016-05-18 15:35:17 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/2e6b99499abb5ff1fbeee3bac4d064e5ff4ea256


 src/bitops.c | 74 ++++++++++++++++++++++++++++++++----------------------------
 1 file changed, 39 insertions(+), 35 deletions(-)

+-------------------------------------------------------------------------------
| fix crash in BITFIELD GET when key is integer encoded
| By oranagra, 2016-05-10 11:19:45 +0300
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/dcaeafc8280eb8329e7ce68e7ab02c67d98f0cf4


 src/bitops.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

+-------------------------------------------------------------------------------
| Clarify that the LOG_STR_SIZE includes null term.
| By antirez, 2016-05-18 15:23:18 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/4ad088818a3353ebd619e8d43847b5d58108af20


 src/server.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Test for BITFIELD regression #3221.
| By antirez, 2016-05-18 14:53:30 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/f991cdc3e19c187035855355808575efd6b4c149


 tests/unit/bitfield.tcl | 5 +++++
 1 file changed, 5 insertions(+)

+-------------------------------------------------------------------------------
| reduce struct padding by reordering members
| By oranagra, 2016-05-16 20:12:11 +0300
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/cb3e89e2cb0753d2d111eaeadc9c73cbe24025ab


 src/quicklist.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Actually use --with-lg-quantum=3 to build jemalloc.
| By antirez, 2016-05-18 11:58:36 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/a7f0fb448c110e125eece44dc955d6939e494daa

This change is documented in deps/README.md but was lost in one way or
the other, neutralizing the benefits of 24 bytes size classes (and
others).

Close #3208.

 deps/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| redis-cli: integrate help.h with COMMAND output.
| By antirez, 2016-05-07 13:03:25 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/029dc0d97fd492a2fd579796d4c1cc04053c7190

Use the COMMAND output to fill with partial information the built-in
help. This makes redis-cli able to at least complete commands that are
exported by the Redis server it is connected to, but were not available
in the help.h file when the redis-cli binary was compiled.

 src/redis-cli.c | 80 +++++++++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 70 insertions(+), 10 deletions(-)

+-------------------------------------------------------------------------------
| Removed dofile() from Lua
| By Adam Baldwin, 2012-10-25 20:27:10 -0700
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/95def3aee044468504bb07633084afd49b085db3


 src/scripting.c | 2 ++
 1 file changed, 2 insertions(+)


================================================================================
Redis 3.2.0     Released Fri May 06 08:47:10 CEST 2016
================================================================================

Upgrade urgency HIGH: 3.2-RC users should upgrade ASAP to this more
                      stable release of Redis.

Hello, this is Redis 3.2.0 stable! And with the new release there is a new
format for the changelog. Now it is composed of a "letter" like the one
you are reading, followed by all the commits composing the release for people
interested in the details.

There are a few changes between the latest release candidate of Redis 3.2
and the final 3.2.0 release. The main ones are the obvious bug fixes you
can find detailed below, also a few new things:

Critical bugs fixed:

* There was a problem in the way a cluster instance loaded the AOF that
  could cause data written via scripts to be lost during reshardings.

New things:

* There is a new very powerful BITFIELD command. Check the documentation
  here: http://redis.io/commands/BITFIELD

* CONFIG GET is allowed during the loading of the dataset.

* The DEBUG command have new features and can show an help with DEBUG HELP.

* redis-cli show hits about the commands arguments to the right.

* GEORADIUS got a STORE / STOREDIST option to store the result into a target
  key (as as orted set) instead of reporting it to the user.

* Redis Cluster replicas migration now works in a slightly different way. In
  the past a slave could migrate only to a master that used to have slaves
  in the past (and if there was still trace of this information). Now instead
  if a new slave gets at least a slot, and at least one other master in the
  cluster has a slave, then the new master is considered a valid target for
  replica migration. So if it will be orphaned and there is a spare slave
  it will get one.

* CLUSTER SLOTS output now includes the node ID (in a backward compatible
  manner).

* A lot of bug fixes you can read in the commits details below, with the
  authors that kindly provided many useful patches. Thanks.

As usually what "stable" means is that we are confident the release is mature,
however do your tests before putting it into production in your environemnt
as it's fresh meat anyway.

Cheers,
Salvatore

+-------------------------------------------------------------------------------
| Cluster: don't check scripts key slots during AOF loading.
| By antirez, 2016-05-05 23:37:08 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/746e1bebb4baf876c1e8cd2fe2d468a1c41e5dc3


 src/scripting.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

+-------------------------------------------------------------------------------
| redis-cli: remove debugging message.
| By antirez, 2016-05-05 18:05:37 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/3907b059280898c6340b53982b3b65957535da7c


 src/redis-cli.c | 1 -
 1 file changed, 1 deletion(-)

+-------------------------------------------------------------------------------
| Revert "Fix commandCommand arity"
| By antirez, 2016-05-05 17:35:33 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/f01a2714582a9a916b41e6cb90e42474a104925d

This reverts commit 1189a4eae6d009fc0da8d50fd542ba1391542165.

Actually this is wrong, the command can be called without args at all.

 src/server.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Fix commandCommand arity
| By Ruben Bridgewater, 2016-01-04 11:39:45 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/1189a4eae6d009fc0da8d50fd542ba1391542165


 src/server.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Fix a possible race condition of sdown detection if the connection to master/slave/sentinel decames disconnected just after the last PONG and before the next PING.
| By Daniel Shih, 2016-01-12 17:06:47 +0800
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/d9dc0d777b775f2fe4f23f42e1b4130f4de1ed72


 src/sentinel.c | 2 ++
 1 file changed, 2 insertions(+)

+-------------------------------------------------------------------------------
| Fix nanosecond conversion
| By Jan-Erik Rediger, 2016-01-13 10:22:29 -0700
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/13bd702844eda7bccc7c672b6ff77f53e21ab841

1 microsecond = 1000 nanoseconds
1e3 = 1000
10e3 = 10000

 src/redis-cli.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| redis-cli: don't free historyfile, is used later.
| By antirez, 2016-05-05 13:57:57 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/f6b7df3aec1d8fddf3121c4315fea4bf45cc4cfe


 src/redis-cli.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Cluster test 12: reshard back just a few slots to speedup the test.
| By antirez, 2016-05-05 11:49:27 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/97ce72fa2d348f914fc40ccf0a32008c7362b817


 tests/cluster/tests/12-replica-migration-2.tcl | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

+-------------------------------------------------------------------------------
| Cluster: make getNodeByQuery() responsible of -CLUSTERDOWN errors.
| By antirez, 2016-05-05 11:33:43 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/708f486c77b455fa7ae1e87cf31278474eb9d432

This fixes a bug introduced by d827dbf, and makes the code consistent
with the logic of always allowing, while the cluster is down, commands
that don't target any key.

As a side effect the code is also simpler now.

 src/cluster.c | 13 +++++++++++--
 src/server.c  | 26 ++++++++++----------------
 2 files changed, 21 insertions(+), 18 deletions(-)

+-------------------------------------------------------------------------------
| Fixes a typo
| By Itamar Haber, 2016-01-28 21:47:18 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/1fc2ed61bec2f2bf266b48e566a197c5214b4350


 src/cluster.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Reverse redirect address parse
| By David Cavar, 2016-02-09 15:04:42 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/787d5ab9be45bf4feb6cfa8a227c185c93aaadae

Fix issue in case the redirect address is in ipv6 format. Parse from behind to extract last part of the response which represents actual port.
 src/redis-cli.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Bind both IPv4 and IPv6 or exit with an error by default.
| By antirez, 2016-05-05 10:02:42 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/0fda06225f19b18a370d63ac650a8bb61020235d

Thanks to @tushar2708 for the PR. I applied a slightly different fix.
Thanks to @cespare for reporting.

Close #3024
Close #3020

 src/server.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

+-------------------------------------------------------------------------------
| Quick fix to avoid false positive in replica migration test.
| By antirez, 2016-05-05 09:45:31 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/65707fa6b5bb38b5818af57ab93b9b1da47d708a


 tests/cluster/tests/12-replica-migration-2.tcl | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Ensure slots are rechecked on EXEC.
| By Chris Thunes, 2016-03-11 15:22:36 -0500
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/1f3ed652e2a6cfcbbd5300a31f5771f2ce842e98

Fixes #2515.

 src/server.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

+-------------------------------------------------------------------------------
| fix for #3187
| By therealbill, 2016-04-22 10:43:48 -0500
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/3a4810678904af013901a896ab0bb3c71856644c

I've renamed maxmemoryToString to evictPolicyToString since that is
more accurate (and easier to mentally connect with the correct data), as
well as updated the function to user server.maxmemory_policy rather than
server.maxmemory. Now with a default config it is actually returning
the correct policy rather than volatile-lru.

 src/config.c | 4 ++--
 src/server.c | 2 +-
 src/server.h | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

+-------------------------------------------------------------------------------
| Fixed typo in README.md
| By Seth Bergman, 2016-04-30 11:58:48 -0500
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/bba53d7fc7a759b53d72a7c3be17a00abe32039e


 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| fix variable
| By Ryosuke Hasebe, 2016-03-30 23:09:36 +0900
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/ab7581489871eebcf0253915acc26efb27f5df23


 src/redis-trib.rb | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

+-------------------------------------------------------------------------------
| fix check_open_slots
| By Ryosuke Hasebe, 2016-03-30 21:56:22 +0900
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/0fcf896ac14c6e5c57e3b79e836dd8bf7dad94b5


 src/redis-trib.rb | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Minor redis-cli wording change in --help output.
| By antirez, 2016-05-04 22:34:17 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/b8a63635e39ce312b2c5664f2c2a59184849b8fb


 src/redis-cli.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Allow CONFIG GET during loading.
| By antirez, 2016-05-04 15:45:38 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/ae95de93312d6bb2c8c365c31f2a3fd0b6d2c100

Thanks to @oranagra for the idea of allowing CONFIG GET during loading.

 src/config.c | 6 ++++++
 src/server.c | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Command "r" flag removed from commands not accessing the key space.
| By antirez, 2016-05-04 15:42:14 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/3ff8f57ef32e3b1ddd407b65d474f610881bef34

Thanks to @oranagra for the hint about misplaced 'r' flags.

 src/server.c | 70 ++++++++++++++++++++++++++++++------------------------------
 1 file changed, 35 insertions(+), 35 deletions(-)

+-------------------------------------------------------------------------------
| DEBUG command self documentation.
| By antirez, 2016-05-04 12:45:55 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/07b852d24ec8d7cb47044b096baf0af1410c69ed


 src/debug.c  | 49 ++++++++++++++++++++++++++++++++++++++++++++++++-
 src/server.c |  2 +-
 2 files changed, 49 insertions(+), 2 deletions(-)

+-------------------------------------------------------------------------------
| various cleanups and minor fixes
| By Oran Agra, 2016-04-25 16:49:57 +0300
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/cfc08b65b04cf972ebeadf3be9f39f2acd7672b3


 src/adlist.c             | 18 ++++++------------
 src/ae_epoll.c           |  6 ++----
 src/aof.c                |  5 ++++-
 src/db.c                 |  2 +-
 src/rdb.c                |  6 ++++--
 src/rio.c                |  5 +++--
 src/rio.h                |  2 ++
 src/server.h             |  3 +--
 tests/support/test.tcl   |  6 ------
 tests/unit/bitops.tcl    |  2 +-
 tests/unit/other.tcl     |  1 +
 tests/unit/scripting.tcl | 27 ++++++++++++++-------------
 12 files changed, 39 insertions(+), 44 deletions(-)

+-------------------------------------------------------------------------------
| dict.c minor optimization
| By Oran Agra, 2016-04-25 16:48:25 +0300
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/6710c8dc15680b756de26d1d45df110987b951b3


 src/dict.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

+-------------------------------------------------------------------------------
| networking.c minor optimization
| By Oran Agra, 2016-04-25 16:48:09 +0300
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/be5c0869821b16f18104d9ea62ab42bfa0615816


 src/networking.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

+-------------------------------------------------------------------------------
| add DEBUG JEMALLC PURGE and JEMALLOC INFO cleanup
| By Oran Agra, 2016-04-25 16:47:42 +0300
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/3ede6c7a506bcff3c7d2147c8af140dd4102a36e


 src/debug.c     | 17 ++++++++++++++++-
 src/redis-cli.c |  2 +-
 2 files changed, 17 insertions(+), 2 deletions(-)

+-------------------------------------------------------------------------------
| fix small issues in redis 3.2
| By Oran Agra, 2016-04-25 14:19:28 +0300
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/e2fab184efd01ffa0d510739f4d819a30b1d6787


 src/config.c | 2 ++
 src/rdb.c    | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| additional fix to issue #2948
| By Oran Agra, 2016-04-25 14:18:40 +0300
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/9d57ceec08687545c2a63a2c18c28e2bcaf74664


 src/networking.c | 3 +++
 1 file changed, 3 insertions(+)

+-------------------------------------------------------------------------------
| Reply with error on negative geo radius.
| By antirez, 2016-05-04 08:59:56 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/7ba2cf5f8bea9cd125e773de147e3ea9b19ee2b0

Thanks to @tidwall for reporting.
Close #3194.

 src/geo.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Cluster regression test for #3043.
| By antirez, 2016-05-02 18:36:09 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/38cf2bd257d09b360be6adf450d59592a359696d

The test works but is very slow so far, since it involves resharding
1/5 of all the cluster slots from master 0 to the other 4 masters and
back into the original master.

 tests/cluster/tests/12-replica-migration-2.tcl | 61 ++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)

+-------------------------------------------------------------------------------
| New masters with slots are now targets of migration if others are.
| By antirez, 2016-05-02 16:41:56 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/7b618823c189c24313effbccda7022d167ea419c

This fixes issue #3043.

Before this fix, after a complete resharding of a master slots
to other nodes, the master remains empty and the slaves migrate away
to other masters with non-zero nodes. However the old master now empty,
is no longer considered a target for migration, because the system has
no way to tell it had slaves in the past.

This fix leaves the algorithm used in the past untouched, but adds a
new rule. When a new or old master which is empty and without slaves,
are assigend with their first slot, if other masters in the cluster have
slaves, they are automatically considered to be targets for replicas
migration.

 src/cluster.c | 36 +++++++++++++++++++++++++++++++++++-
 1 file changed, 35 insertions(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Test ZINCRBY return value.
| By antirez, 2016-05-02 08:57:30 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/1101b515c73dcb0ff4a868ba38a91dcebb5b85cc


 tests/unit/type/zset.tcl | 6 ++++++
 1 file changed, 6 insertions(+)

+-------------------------------------------------------------------------------
| redis-cli preferences and rc file support.
| By antirez, 2016-04-13 13:58:30 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/bbf93108ef2a7ac7bd53e26c96bf838f7c5e72df


 src/redis-cli.c | 102 ++++++++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 85 insertions(+), 17 deletions(-)

+-------------------------------------------------------------------------------
| redis-cli hints.
| By antirez, 2016-04-13 12:34:14 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/3fd3fca0dd38cb21c900e4ba98e3d41f333335aa


 deps/linenoise/linenoise.c |  8 +++++++
 deps/linenoise/linenoise.h |  2 +-
 src/redis-cli.c            | 53 ++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 62 insertions(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Linenoise updated again (hints support).
| By antirez, 2016-04-12 23:39:18 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/34354473ffe8d60b80acdbc8c16b194f8bbd70a0


 deps/linenoise/README.markdown | 176 ++++++++++++++++++++++++++++++++++++++++-
 deps/linenoise/example.c       |  10 +++
 deps/linenoise/linenoise.c     |  55 ++++++++++++-
 deps/linenoise/linenoise.h     |  15 +++-
 4 files changed, 248 insertions(+), 8 deletions(-)

+-------------------------------------------------------------------------------
| Linenoise updated.
| By antirez, 2016-04-06 13:37:27 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/58229cd766fa02f399267310b5b488aac2c55a6a

As a side effect, cat commands.txt | redis-cli now is able to handle
lines more than 4096 bytes.

 deps/linenoise/linenoise.c | 60 ++++++++++++++++++++++++++++++++++------------
 1 file changed, 45 insertions(+), 15 deletions(-)

+-------------------------------------------------------------------------------
| ae.c: Fix delay until next timer event.
| By antirez, 2016-04-04 14:08:16 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/29645f1f44926ac2662ed768fe1e369775a30b66

This fix was written by Anthony LaTorre.
The old code mis-calculated the amount of time to wait till next event.

 src/ae.c | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

+-------------------------------------------------------------------------------
| ae.c: comment to explain why we have a useless maxId check.
| By antirez, 2016-04-04 12:23:10 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/aa79c1f1c1d288e4cc2c0f4689ad01488678bf9d


 src/ae.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Fix ae.c to avoid timers infinite loop.
| By antirez, 2016-01-08 15:05:14 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/0b69c9865619b54b75576e67aaafe7b018734bec

This fix was suggested by Anthony LaTorre, that provided also a good
test case that was used to verify the fix.

The problem with the old implementation is that, the time returned by
a timer event (that is the time after it want to run again) is added
to the event *start time*. So if the event takes, in order to run, more
than the time it says it want to be scheduled again for running, an
infinite loop is triggered.

 src/ae.c          | 51 ++++++++++++++++++++++-----------------------------
 src/ae.h          |  3 +++
 src/anet.h        |  2 ++
 src/redis-trib.rb |  2 +-
 4 files changed, 28 insertions(+), 30 deletions(-)

+-------------------------------------------------------------------------------
| BITFIELD: overflow wrap behavior fuzz tester.
| By antirez, 2016-03-02 17:22:42 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/258857cd62e0eb70da32742651a55213fbc28a53


 tests/unit/bitfield.tcl | 51 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

+-------------------------------------------------------------------------------
| BITFIELD basic unit tests.
| By antirez, 2016-03-02 16:31:02 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/35d05d6dc5d7fb810e732f9de7b05c6b14933fb6


 tests/unit/bitfield.tcl | 86 ++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 85 insertions(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| BITFIELD: Farest bit set is offset+bits-1. Off by one error fixed.
| By antirez, 2016-03-02 16:20:28 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/6cf83feffad7f7b7693a207a9d63278354769ece


 src/bitops.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

+-------------------------------------------------------------------------------
| BITFIELD: overflow fuzzy testing.
| By antirez, 2016-03-02 15:15:18 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/b4d65c9501be01531eb8fbeb4ba2b444e35d6494


 tests/test_helper.tcl   |  1 +
 tests/unit/bitfield.tcl | 52 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 53 insertions(+)

+-------------------------------------------------------------------------------
| Fix typo in bitops.tcl comment.
| By antirez, 2016-03-02 15:14:53 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/d75e0fdbe6ecf3074b18c4dd1e8b71a474254ccc


 tests/unit/bitops.tcl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| More BITFIELD fixes. Overflow conditional simplified.
| By antirez, 2016-03-02 15:13:45 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/5f3ef73ed41be6e051daad9fdb7efa91b4ca682d

See issue #3114.

 src/bitops.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

+-------------------------------------------------------------------------------
| bitops/bitfield: fix length, overflow condition and *sign
| By Sun He, 2016-03-02 18:11:30 +0800
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/5b9aa5026204fb6c8b0098d4e47c2e001cf06151


 src/bitops.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

+-------------------------------------------------------------------------------
| Fix INFO commandstats reporting when argv is rewritten.
| By antirez, 2016-03-02 08:51:27 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/ba9154d7e7bf959b002533384319a1e90545447b

We want to report the original command in the stats, for example GEOADD,
even when what is actually executed is the ZADD implementation.

 src/scripting.c | 2 +-
 src/server.c    | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

+-------------------------------------------------------------------------------
| BITFIELD: refactoring & fix of retval on FAIL.
| By antirez, 2016-02-29 09:08:46 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/76b22e3728e37fe11582b71802bf98a2be09623f


 src/bitops.c | 32 ++++++++++++++++++++++++--------
 1 file changed, 24 insertions(+), 8 deletions(-)

+-------------------------------------------------------------------------------
| BITFIELD: Fix #<index> form parsing.
| By antirez, 2016-02-26 15:53:29 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/c333a9e2d7873190b22aaee8835a188bc55b60dc


 src/bitops.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

+-------------------------------------------------------------------------------
| BITFIELD: Support #<index> offsets form.
| By antirez, 2016-02-26 15:16:24 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/f84871cb5dd3bb3c04bfd7ac53b6e06b246f511f


 src/bitops.c | 29 +++++++++++++++++++++++------
 1 file changed, 23 insertions(+), 6 deletions(-)

+-------------------------------------------------------------------------------
| BITFIELD command initial implementation.
| By antirez, 2016-02-25 23:31:45 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/761a77287107ce53dbf4755f1435cc9660b6c86d

The new bitfield command is an extension to the Redis bit operations,
where not just single bit operations are performed, but the array of
bits composing a string, can be addressed at random, not aligned
offsets, with any width unsigned and signed integers like u8, s5, u10
(up to 64 bit signed integers and 63 bit unsigned integers).

The BITFIELD command supports subcommands that can SET, GET, or INCRBY
those arbitrary bit counters, with multiple overflow semantics.

Trivial and credits:

A similar command was imagined a few times in the past, but for
some reason looked a bit far fetched or not well specified.
Finally the command was proposed again in a clear form by
Yoav Steinberg from Redis Labs, that proposed a set of commands on
arbitrary sized integers stored at bit offsets.

Starting from this proposal I wrote an initial specification of a single
command with sub-commands similar to what Yoav envisioned, using short
names for types definitions, and adding control on the overflow.

This commit is the resulting implementation.

Examples:

    BITFIELD mykey OVERFLOW wrap INCRBY i2 10 -1 GET i2 10

 src/bitops.c | 506 +++++++++++++++++++++++++++++++++++++++++++++++++++++++----
 src/server.c |   1 +
 src/server.h |   1 +
 3 files changed, 476 insertions(+), 32 deletions(-)

+-------------------------------------------------------------------------------
| Eliminates engineers near the equator & prime meridian
| By Itamar Haber, 2016-02-18 15:11:30 -0800
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/4b89ea3a95ef72353e14e0eb5cbf293bf2dc8b48


 src/geo.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

+-------------------------------------------------------------------------------
| Fixes a typo in a comment
| By Itamar Haber, 2016-02-18 15:01:34 -0800
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/0f46f9bd423a146f96e1993aca6221e1305f9a28


 src/geo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Adjusts accuracy for GEODIST
| By Itamar Haber, 2016-02-18 15:00:39 -0800
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/9de844603c5203ae6ff6e7882a3dcb47a9f79a85


 src/geo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| addReplyHumanLongDouble() API added.
| By antirez, 2016-02-18 22:08:47 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/79e553a58d7f814fd08482b118561fcf9854b1df

Send a long double or double as a bulk reply, in a human friendly
format.

 src/networking.c | 9 +++++++++
 src/server.h     | 1 +
 2 files changed, 10 insertions(+)

+-------------------------------------------------------------------------------
| Fix GEORADIUS STORE/DIST refcount after backport to 3.2.
| By antirez, 2016-02-18 15:33:02 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/158d1e2fbf6badb881a4d78623fd1bffde34cc49


 src/geo.c | 2 ++
 1 file changed, 2 insertions(+)

+-------------------------------------------------------------------------------
| GEOADD STORE/STOREDIST tests.
| By antirez, 2016-02-18 14:42:42 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/123cd88286127cc20684bf0457cb51107a67cfa2


 tests/unit/geo.tcl | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

+-------------------------------------------------------------------------------
| New options for GEORADIUS: STORE and STOREDIST.
| By antirez, 2016-02-18 10:24:11 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/0b6daf5a6b27447f03c76387b8b707ce0ab7b08d

Related to issue #3019.

 src/geo.c    | 143 +++++++++++++++++++++++++++++++++++++++++------------------
 src/server.c |   4 +-
 src/server.h |   1 +
 src/t_zset.c |  18 +++++---
 4 files changed, 117 insertions(+), 49 deletions(-)

+-------------------------------------------------------------------------------
| Include full paths on RDB/AOF files errors.
| By antirez, 2016-02-15 16:14:56 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/f7af1beaab938b7e319d1b91d7736f043b7ef682

Close #3086.

 src/aof.c | 17 +++++++++++++++--
 src/rdb.c | 19 +++++++++++++++++--
 2 files changed, 32 insertions(+), 4 deletions(-)

+-------------------------------------------------------------------------------
| Remove Lua state reference from buffers in lua_cmsgpack.
| By antirez, 2016-02-10 09:12:17 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/0b4a628fc716ab6b88c9823b143de174601a790d


 deps/lua/src/lua_cmsgpack.c | 53 +++++++++++++++++++++------------------------
 1 file changed, 25 insertions(+), 28 deletions(-)

+-------------------------------------------------------------------------------
| cmsgpack: pass correct osize values to lua allocator, update correct buf free space in cmsgpack
| By yoav@monfort.co.il, 2016-02-07 20:24:28 +0200
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/43509f686452fba68966aa89b87d1be065b50e17


 deps/lua/src/lua_cmsgpack.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

+-------------------------------------------------------------------------------
| Fixes a typo
| By Itamar Haber, 2016-02-03 11:04:09 -0800
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/cd9f7c6976f81c0e9ffae9e34b31eda19384a7dd


 src/server.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

+-------------------------------------------------------------------------------
| Adds keyspace notifications for lrem
| By Itamar Haber, 2016-02-02 09:58:19 -0800
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/bf30f5a73922e5111d6a39da7351e22357213134


 src/t_list.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Typo ASII -> ASCII fixed in comment.
| By antirez, 2016-01-29 12:08:10 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/0c7c7631d206964b8bf1dae3db286a3acda4edad


 src/server.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

+-------------------------------------------------------------------------------
| Cluster: include node IDs in SLOTS output.
| By antirez, 2016-01-29 12:00:38 +0100
+--------------------------------------------------------------------------------
https://github.com/antirez/redis/commit/0f3fb0097ae70e36ee65468b79f0be4160934bb4

CLUSTER SLOTS now includes IDs in the nodes description associated with
a given slot range. Certain client libraries implementations need a way
to reference a node in an unique way, so they were relying on CLUSTER
NODES, that is not a stable API and may change frequently depending on
Redis Cluster future requirements.

 src/cluster.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)


~~~~~~~~~~~~~~~~~~~~~~~~~~ OLD STYLE CHANGELOG ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

--[ Redis 3.2.0 RC3 (version 3.1.103) ] Release date: 28 jan 2016

Upgrade urgency MODERATE: this release fixes a non trivial Sentinel crash.

* [FIX] avg_ttl reporting in INFO improved. (Salvatore Sanfilippo)
* [FIX] Sentinel: improve handling of known Sentinel instances.
        (Salvatore Sanfilippo, thanks to Paweł Kowalczykf or the original
         crash report).
* [FIX] Redis Cluster address update (via gossip section) processing improved
        to avoid initiating inwanted handshakes.

--[ Redis 3.2.0 RC2 (version 3.1.102) ] Release date: 25 jan 2016

Upgrade urgency MODERATE: this release fixes important Redis Cluster bugs.

* [FIX] Many fixes to MIGRATE multiple keys implementation. The command
        could handle errors in a faulty way leading to crashes or other
        unexpected behaviors. MIGRATE command refactoring.
        (The analysis of the faulty conditions was conducted by
         Kevin McGehee. The fix was developed by Salvatore Sanfilippo)
* [FIX] A Redis Cluster node crash was fixed because of wrong handling of
        node->slaveof pointers.
        (Reported by JackyWoo, fixed by Salvatore Sanfilippo)
* [FIX] Fix redis-trib rebalance when nodes need to be left empty because
        the specified weight is zero.
        (Reported by Shahar Mor, fixed by Salvatore Sanfilippo)
* [FIX] MIGRATE: Never send -ASK redirections for MIGRATE when there are
        open slots. Redis-trib and other cluster management utility must
        always be free to move keys between nodes about open slots, in order
        to reshard, fix the cluster configuration, and so forth.
        (Salvatore Sanfilippo)
* [FIX] Lua debugger crash when printing too deeply nested objects.
        (Reported by Paul Kulchenko, fixed by Salvatore Sanfilippo)
* [FIX] Redis-cli implementation of Lua debugging now allows to use the
        SCRIPT DEBUG command directly, switching to debugging mode as needed.
        (Reported by Paul Kulchenko, fixed by Salvatore Sanfilippo)
* [FIX] Redis-trib is now able to fix more errors. A new CLUSTER subcommand
        called BUMPEPOCH was introduced in order to support new modes
        for the "fix" subcommand. (Salvatore Sanfilippo)
* [NEW] Redis proctected mode: this feature improves Redis security and makes
        harder to run Redis in a configuration that is unsecure because no
        firewalling was used in order to protect Redis from external accesses.
        See this Reddit post for more info: https://www.reddit.com/r/redis/comments/3zv85m/new_security_feature_redis_protected_mode/ (Salvatore Sanfilippo)
* [NEW] Cluster/Sentinel tests now use OSX leak to perform leak detection
        at the end of every unit. (Salvatore Sanfilippo)
* [NEW] Detect and show server crashes during Cluster/Sentinel tests.
        (Salvatore Sanfilippo)
* [NEW] More reliable Cluster/Sentinel test becuase of timing errors and
        -LOADING errors. (Salvatore Sanfilippo)

--[ Redis 3.2.0 RC1 (version 3.1.101) ] Release date: 23 dec 2015

This is the first release candidate of Redis 3.2. The changelog above shows
what's new in this release. In the next of the following weeks we'll test
in depth every feature and we'll release new RCs as bugs are discovered
and fixed. Note that while 3.2 looks solid already, it contains many changes
to its internals. It's still fresh code compared to 3.0.

General changes:

* [NEW] Lua scripts "effect replication". Makes possible to write scripts
        with side effects, use of random commands, and so forth.
        (Salvatore Sanfilippo)
* [NEW] Lua scripts selective replication. Makes possible to replicate to
        slaves and AOF only selected parts of a script. (Design by
        Yossi Gottlieb and Salvatore Sanfilippo, implemented by Salvatore)
* [NEW] Geo indexing support via GEOADD, GEORADIUS and other commands.
        See http://redis.io/commands/geoadd for more information.
        (Initially implemented in a fork of Redis called "Ardb".
         Matt Stancliff "imported back" the work to Redis and created the
         initial API and implementation. Salvatore Sanfilippo modified
         the API and the implementation, fixed bugs, improved performances
         and unified the duplicated code with t_zset.c)
* [NEW] Lua debugger. A complete stepping, remote debugger for Lua scripts.
        Video here: https://www.youtube.com/watch?v=IMvRfStaoyM
        (Salvatore Sanfilippo with many feedbacks and testing from
         Itamar Haber)
* [NEW] SDS improvements for speed and maximum string length.
        This makes Redis more memory efficient in different use cases.
        (Design and implementation by Oran Agra, some additional work
         by Salvatore Sanfilippo)
* [NEW] Modify Jemalloc size classes to make certain Redis objects fit
        better, improving memory efficiency. (Oran Agra)
* [NEW] Better consistency behavior between masters and slaves for expired
        keys. The slaves are only able to logically consider a key expired
        even before receiving the `DEL` command from the master. This avoids
        the delay there is sometimes between the natural expire of the key
        and the moment the slave is notified. (Salvatore Sanfilippo)
* [NEW] Support daemon supervision by upstart or systemd (Pierre-Yves Ritschard)
* [NEW] New encoding for the List type: Quicklists. Very important memory
        savings and storage space in RDB gains (up to 10x sometimes).
        (Design and implementation by Matt Stancliff. RDB storage reworked
         by Salvatore Sanfilippo)
* [NEW] SPOP with optional count argument. (Initial implementation by
        Alon Diamant, mostly reimplemented by Salvatore Sanfilippo for speed
        and in order to make the replication of a this class of commands,
        having as logical effect the execution of multiple commands, possible).
* [NEW] Support for RDB AUX fields. Now RDB files contain additional info
        like the creation date, version of Redis generating it and so forth.
        (Salvatore Sanfilippo)
* [NEW] Faster RDB loading via the RESIZEDB opcode to avoid useless hash tables
        rehashings. (Salvatore Sanfilippo)
* [NEW] HSTRLEN command. (@landmime and Salvatore Sanfilippo)
* [NEW] CONFIG SET/GET implementations refactored, partially rewritten,
        now exposing more config options. (Salvatore Sanfilippo)
* [NEW] CLUSTER NODES major speedup. (Salvatore Sanfilippo)
* [NEW] CLIENT KILL TYPE MASTER, to kill (disconnect) masters from slaves.
        (Salvatore Sanfilippo)
* [NEW] Jemalloc updated to 4.0.3 (Salvatore Sanfilippo)
* [NEW] DEBUG RESTART/CRASH-AND-RECOVER [delay] (Salvatore Sanfilippo)
* [NEW] CLIENT REPLY command implemented: ON, OFF and SKIP modes.
        (Salvatore Sanfilippo)
* [NEW] Crash report produced by Redis on crash improved. (Salvatore Sanfilippo)
* [NEW] Better memory test on crash. (Salvatore Sanfilippo)

Redis Cluster changes:

All the Redis Cluster changes in 3.2 were backported to 3.0, so there is
technically nothing new for now in this release. The most important things
are:

* Cluster rebalancing.
* A pipelined MIGRATE command which is 10x faster and makes resharding
  and rebalancing faster.
* Improved replicas migration.
* As a side effect of quicklists encoding (see above items), moving big
  lists between nodes is now a lot faster.

Redis Sentinel changes:

* [NEW] Sentinel connection sharing. Makes Sentinels able to scale to
        monitor many masters. (Salvatore Sanfilippo)
* [NEW] New SENTINEL INFO-CACHE command. (Matt Stancliff)
* More things backported to Redis 3.0 in the past, so no longer news of 3.2.

Migrating from 3.0 to 3.2
=========================

Redis 3.0 is mostly a strict subset of 3.2, you should not have any problem
upgrading your application from 3.0 to 3.2. However this is a list of small
non-backward compatible changes introduced in the 3.2 release:

* The default configuration file now binds to 127.0.0.1.
* Slaves try to no longer expose stale data about already expired keys.
* The RDB format changed. Redis 3.2 is still able to read 3.0 (and all the
  past versions) files, but not the other way around.
* Behavior on crash may be different. The crash log format changed and
  the memory test executed is now different.

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

Credits: For each release, a list of changes with the relative author is
provided. Where not specified the implementation and design is done by
Salvatore Sanfilippo. Thanks to Redis Labs for making all this possible.
Also many thanks to all the other contributors and the amazing community
we have.

Commit messages may contain additional credits.

Cheers,
Salvatore