From c2513ecb9877d9976da31bc11f84e1dab68777b5 Mon Sep 17 00:00:00 2001 From: antirez Date: Sun, 5 Feb 2012 11:08:01 +0100 Subject: A first (work in progress) release notes for 2.6 --- 00-RELEASENOTES | 81 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 00-RELEASENOTES (limited to '00-RELEASENOTES') diff --git a/00-RELEASENOTES b/00-RELEASENOTES new file mode 100644 index 000000000..dd87cb18a --- /dev/null +++ b/00-RELEASENOTES @@ -0,0 +1,81 @@ +Redis 2.6 release notes + +Migrating from 2.4 to 2.6 +========================= + +Redis 2.4 is mostly a strict subset of 2.6. +The only thing you should be aware is that you can't use .rdb and AOF files +generated with 2.4 into a 2.2 instance. + +2.4 slaves can be attached to 2.2 masters, but not the contrary, and only for +the time needed to perform the version upgrade. + +From the point of view of the API Redis 2.4 only adds new commands +(other commands now accepts a variable number of arguments) so you don't need +to modify your program in order to use Redis 2.4. + +However there are a few semantical differences that you should be aware of: + +* 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 '#'. + +--------- +CHANGELOG +--------- + +What's new in Redis 2.6.0 +========================= + +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, ...). +* Clinets 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. + +-------------------------------------------------------------------------------- + +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. + +See commit messages for more credits. + +Cheers, +Salvatore -- cgit v1.2.1