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| Original file line number | Diff line number | Diff line change |
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| @@ -1,85 +1,16 @@ | ||
| Redis 2.6 release notes | ||
| Hello! This file is just a placeholder, since this is the "unstable" branch | ||
| of Redis, the place where all the development happens. | ||
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| Migrating from 2.4 to 2.6 | ||
| ========================= | ||
| There is no release notes for this branch, it gets forked into another branch | ||
| every time there is a partial feature freeze in order to eventually create | ||
| a new stable release. | ||
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| Redis 2.4 is mostly a strict subset of 2.6. However there are a few things | ||
| that you should be aware of: | ||
| Usually "unstable" is stable enough for you to use it in development enviromnets | ||
| however you should never use it in production environments. It is possible | ||
| to download the latest stable release here: | ||
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| * 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. | ||
| http://download.redis.io/releases/redis-stable.tar.gz | ||
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| There are also a few API differences, that are unlikely to cause problems, | ||
| but it is better to keep them in mind: | ||
| More information is available at http://redis.io | ||
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| * 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. | ||
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| Also the following redis.conf and CONFIG GET / SET parameters changed name: | ||
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| * 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 | ||
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| --------- | ||
| CHANGELOG | ||
| --------- | ||
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| What's new in Redis 2.6.0 | ||
| ========================= | ||
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| 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. | ||
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| * 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. | ||
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| -------------------------------------------------------------------------------- | ||
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| 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. | ||
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| See commit messages for more credits. | ||
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| Cheers, | ||
| Salvatore | ||
| Happy hacking! |
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