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Diffstat (limited to '00-RELEASENOTES')
-rw-r--r-- | 00-RELEASENOTES | 96 |
1 files changed, 29 insertions, 67 deletions
diff --git a/00-RELEASENOTES b/00-RELEASENOTES index 36317ca35..8bdd2cf2f 100644 --- a/00-RELEASENOTES +++ b/00-RELEASENOTES @@ -1,83 +1,45 @@ -Redis 2.6 release notes +Redis 3.0 release notes +======================= -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: +WARNING: Redis 3.0 is currently a BETA not suitable for production environments. -* You can't use .rdb and AOF files generated with 2.6 into a 2.4 instance. -* 2.6 slaves can be attached to 2.4 masters, but not the contrary, and only - for the time needed to perform the version upgrade. +-------------------------------------------------------------------------------- +Upgrade urgency levels: -There are also a few API differences, that are unlikely to cause problems, -but it is better to keep them in mind: +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. +-------------------------------------------------------------------------------- -* 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. +--[ Redis 3.0.0 Beta 1 (version 2.9.50) ] Release date: ... -Also the following redis.conf and CONFIG GET / SET parameters changed name: +This is the first beta of Redis 3.0.0 (official version is 2.8.50). - * hash-max-zipmap-entries, now replaced by hash-max-ziplist-entries - * hash-max-zipmap-value, now replaced by hash-max-ziplist-value - * glueoutputbuf was now completely removed as it does not make sense +The following is a list of improvements in Redis 3.0, compared to Redis 2.8. ---------- -CHANGELOG ---------- +* [NEW] Redis Cluster: a distributed implementation of a subset of Redis. +* [NEW] New "embedded string" object encoding resulting in less cache + misses. Big speed gain under certain work loads. +* [NEW] WAIT command to block waiting for a write to be transmitted to + the specified number of slaves. +* [NEW] MIGRATE connection caching. Much faster keys migraitons. +* [NEW] MIGARTE new options COPY and REPLACE. +* [NEW] CLIENT PAUSE command: stop processing client requests for a + specified amount of time. -What's new in Redis 2.6.0 +Migrating from 2.8 to 3.0 ========================= -UPGRADE URGENCY: We suggest new users to start with 2.6.0, and old users to - upgrade after some testing of the application with the new - Redis version. - -* Server side Lua scripting, see http://redis.io/commands/eval -* Virtual Memory removed (was deprecated in 2.4) -* Hardcoded limits about max number of clients removed. -* AOF low level semantics is generally more sane, and especially when used - in slaves. -* Milliseconds resolution expires, also added new commands with milliseconds - precision (PEXPIRE, PTTL, ...). -* 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, - often producing an AOF that is faster to save, load, and is smaller in size. -* Every redis.conf directive is now accepted as a command line option for the - redis-server binary, with the same name and number of arguments. -* Hash table seed randomization for protection against collisions attacks. -* Performances improved when writing large objects to Redis. -* Significant parts of the core refactored or rewritten. New internal APIs - and core changes allowed to develop Redis Cluster on top of the new code, - however for 2.6 all the cluster code was removed, and will be released with - Redis 3.0 when it is more complete and stable. -* Redis ASCII art logo added at startup. -* Crash report on memory violation or failed asserts improved significantly - to make debugging of hard to catch bugs simpler. -* redis-benchmark improvements: ability to run selected tests, - CSV output, faster, better help. -* redis-cli improvements: --eval for comfortable development of Lua scripts. -* SHUTDOWN now supports two optional arguments: "SAVE" and "NOSAVE". -* INFO output split into sections, the command is now able to just show - pecific sections. -* New statistics about how many time a command was called, and how much - execution time it used (INFO commandstats). -* More predictable SORT behavior in edge cases. -* INCRBYFLOAT and HINCRBYFLOAT commands. +Redis 3.0 is mostly a strict subset of 2.8, you should not have any problem +upgrading your application from 2.8 to 3.0. -------------------------------------------------------------------------------- -Credits: Where not specified the implementation and design are done by -Salvatore Sanfilippo and Pieter Noordhuis. Thanks to VMware for making all -this possible. Also many thanks to all the other contributors and the amazing -community we have. +Credits: Where not specified the implementation and design is done by +Salvatore Sanfilippo. Thanks to Pivotal for making all this possible. +Also many thanks to all the other contributors and the amazing community +we have. See commit messages for more credits. |