Redis 2.6 release notes
+=======================
-Migrating from 2.4 to 2.6
-=========================
+** IMPORTANT ** Check the 'Migrating from 2.4 to 2.6' section at the end of
+ this file for information about what changed between 2.4 and
+ 2.6 and how this may affect your application.
-Redis 2.4 is mostly a strict subset of 2.6. However there are a few things
-that you should be aware of:
+What's new in Redis 2.5.9 (aka 2.6 Release Candidate 3)
+=======================================================
-* You can't use .rdb and AOF files generated with 2.6 into a 2.4 instance.
-* 2.4 slaves can be attached to 2.6 masters, but not the contrary, and only
- for the time needed to perform the version upgrade.
+UPGRADE URGENCY: critical, upgrade ASAP.
-There are also a few API differences, that are unlikely to cause problems,
-but it is better to keep them in mind:
+* [BUGFIX] Fix for issue #500 (https://github.com/antirez/redis/pull/500).
+ Redis 2.6-RC1 and RC2 may corrupt ziplist-encoded sorted sets
+ produced by Redis 2.4.x.
+* [BUGFIX] Fixed several bugs in init.d script.
+* [BUGFIX] syncio.c functions modified for speed and correctness. On osx
+ (and possibly other BSD-based systems) the slave would block on
+ replication to send the SYNC command when the master was not
+ available. This is fixed now, but was not affecting Linux installs.
+* Now when slave-serve-stale-data is set to yes and the master is down, instead
+ of reporting a generic error Redis replies with -MASTERDOWN.
-* SORT now will refuse to sort in numerical mode elements that can't be parsed
- as numbers.
-* EXPIREs now all have millisecond resolution (but this is very unlikely to
- break code that was not conceived exploting the previous resolution error
- in some way.)
-* INFO output is a bit different now, and contains empty lines and comments
- starting with '#'. All the major clients should be already fixed to work
- with the new INFO format.
-
-Also the following redis.conf and CONFIG GET / SET parameters changed name:
+What's new in Redis 2.5.8 (aka 2.6 Release Candidate 2)
+=======================================================
- * hash-max-zipmap-entries, now replaced by hash-max-ziplist-entries
- * hash-max-zipmap-value, now replaced by hash-max-ziplist-value
- * glueoutputbuf was no completely removed as it does not make sense
+UPGRADE URGENCY: high for all the users of the KEYS command, otherwise low.
----------
-CHANGELOG
----------
+* [BUGFIX] Fix for KEYS command: if the DB contains keys with expires the KEYS
+ command may return the wrong output, having duplicated or missing
+ keys. See issue #487 and #488 on github for details.
What's new in Redis 2.5.7 (aka 2.6 Release Candidate 1)
=======================================================
precision (PEXPIRE, PTTL, ...).
* Better memory usage for "small" lists, ziplists and hashes when fields or
values contain small integers.
+* Read only slaves.
* Clients max output buffer soft and hard limits. You can specifiy different
limits for different classes of clients (normal,pubsub,slave).
* AOF is now able to rewrite aggregate data types using variadic commands,
* Better support for big endian and *BSD systems.
* Build system improved.
+Migrating from 2.4 to 2.6
+=========================
+
+Redis 2.4 is mostly a strict subset of 2.6. However there are a few things
+that you should be aware of:
+
+* You can't use .rdb and AOF files generated with 2.6 into a 2.4 instance.
+* 2.4 slaves can be attached to 2.6 masters, but not the contrary, and only
+ for the time needed to perform the version upgrade.
+
+There are also a few API differences, that are unlikely to cause problems,
+but it is better to keep them in mind:
+
+* SORT now will refuse to sort in numerical mode elements that can't be parsed
+ as numbers.
+* EXPIREs now all have millisecond resolution (but this is very unlikely to
+ break code that was not conceived exploting the previous resolution error
+ in some way.)
+* INFO output is a bit different now, and contains empty lines and comments
+ starting with '#'. All the major clients should be already fixed to work
+ with the new INFO format.
+* Slaves are only read-only by default (but you can change this easily
+ setting the "slave-read-only" configuration option to "no" editing your
+ redis.conf or using CONFIG SET.
+
+The following INFO fields were renamed for consistency:
+
+ changes_since_last_save -> rdb_changes_since_last_save
+ bgsave_in_progress -> rdb_bgsave_in_progress
+ last_save_time -> rdb_last_save_time
+ last_bgsave_status -> rdb_last_bgsave_status
+ bgrewriteaof_in_progress -> aof_rewrite_in_progress
+ bgrewriteaof_scheduled -> aof_rewrite_scheduled
+
+The following redis.conf and CONFIG GET / SET parameters changed:
+
+ * hash-max-zipmap-entries, now replaced by hash-max-ziplist-entries
+ * hash-max-zipmap-value, now replaced by hash-max-ziplist-value
+ * glueoutputbuf option was now completely removed (was deprecated)
+
--------------------------------------------------------------------------------
Credits: Where not specified the implementation and design are done by
projects / redis.git / blobdiff