mirror of
http://github.com/valkey-io/valkey
synced 2024-11-23 11:51:01 +00:00
86 lines
3.7 KiB
Plaintext
86 lines
3.7 KiB
Plaintext
Redis 2.6 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:
|
|
|
|
* 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.
|
|
|
|
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.
|
|
|
|
Also the following redis.conf and CONFIG GET / SET parameters changed name:
|
|
|
|
* 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
|
|
|
|
---------
|
|
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, ...).
|
|
* 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.
|
|
|
|
--------------------------------------------------------------------------------
|
|
|
|
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
|