|
1 | | -Redis 2.6 release notes |
| 1 | +Hello! This file is just a placeholder, since this is the "unstable" branch |
| 2 | +of Redis, the place where all the development happens. |
2 | 3 |
|
3 | | -Migrating from 2.4 to 2.6 |
4 | | -========================= |
| 4 | +There is no release notes for this branch, it gets forked into another branch |
| 5 | +every time there is a partial feature freeze in order to eventually create |
| 6 | +a new stable release. |
5 | 7 |
|
6 | | -Redis 2.4 is mostly a strict subset of 2.6. However there are a few things |
7 | | -that you should be aware of: |
| 8 | +Usually "unstable" is stable enough for you to use it in development enviromnets |
| 9 | +however you should never use it in production environments. It is possible |
| 10 | +to download the latest stable release here: |
8 | 11 |
|
9 | | -* You can't use .rdb and AOF files generated with 2.6 into a 2.4 instance. |
10 | | -* 2.6 slaves can be attached to 2.4 masters, but not the contrary, and only |
11 | | - for the time needed to perform the version upgrade. |
| 12 | + http://download.redis.io/releases/redis-stable.tar.gz |
12 | 13 |
|
13 | | -There are also a few API differences, that are unlikely to cause problems, |
14 | | -but it is better to keep them in mind: |
| 14 | +More information is available at http://redis.io |
15 | 15 |
|
16 | | -* SORT now will refuse to sort in numerical mode elements that can't be parsed |
17 | | - as numbers. |
18 | | -* EXPIREs now all have millisecond resolution (but this is very unlikely to |
19 | | - break code that was not conceived exploting the previous resolution error |
20 | | - in some way.) |
21 | | -* INFO output is a bit different now, and contains empty lines and comments |
22 | | - starting with '#'. All the major clients should be already fixed to work |
23 | | - with the new INFO format. |
24 | | - |
25 | | -Also the following redis.conf and CONFIG GET / SET parameters changed name: |
26 | | - |
27 | | - * hash-max-zipmap-entries, now replaced by hash-max-ziplist-entries |
28 | | - * hash-max-zipmap-value, now replaced by hash-max-ziplist-value |
29 | | - * glueoutputbuf was now completely removed as it does not make sense |
30 | | - |
31 | | ---------- |
32 | | -CHANGELOG |
33 | | ---------- |
34 | | - |
35 | | -What's new in Redis 2.6.0 |
36 | | -========================= |
37 | | - |
38 | | -UPGRADE URGENCY: We suggest new users to start with 2.6.0, and old users to |
39 | | - upgrade after some testing of the application with the new |
40 | | - Redis version. |
41 | | - |
42 | | -* Server side Lua scripting, see http://redis.io/commands/eval |
43 | | -* Virtual Memory removed (was deprecated in 2.4) |
44 | | -* Hardcoded limits about max number of clients removed. |
45 | | -* AOF low level semantics is generally more sane, and especially when used |
46 | | - in slaves. |
47 | | -* Milliseconds resolution expires, also added new commands with milliseconds |
48 | | - precision (PEXPIRE, PTTL, ...). |
49 | | -* Clients max output buffer soft and hard limits. You can specifiy different |
50 | | - limits for different classes of clients (normal,pubsub,slave). |
51 | | -* AOF is now able to rewrite aggregate data types using variadic commands, |
52 | | - often producing an AOF that is faster to save, load, and is smaller in size. |
53 | | -* Every redis.conf directive is now accepted as a command line option for the |
54 | | - redis-server binary, with the same name and number of arguments. |
55 | | -* Hash table seed randomization for protection against collisions attacks. |
56 | | -* Performances improved when writing large objects to Redis. |
57 | | -* Significant parts of the core refactored or rewritten. New internal APIs |
58 | | - and core changes allowed to develop Redis Cluster on top of the new code, |
59 | | - however for 2.6 all the cluster code was removed, and will be released with |
60 | | - Redis 3.0 when it is more complete and stable. |
61 | | -* Redis ASCII art logo added at startup. |
62 | | -* Crash report on memory violation or failed asserts improved significantly |
63 | | - to make debugging of hard to catch bugs simpler. |
64 | | -* redis-benchmark improvements: ability to run selected tests, |
65 | | - CSV output, faster, better help. |
66 | | -* redis-cli improvements: --eval for comfortable development of Lua scripts. |
67 | | -* SHUTDOWN now supports two optional arguments: "SAVE" and "NOSAVE". |
68 | | -* INFO output split into sections, the command is now able to just show |
69 | | - pecific sections. |
70 | | -* New statistics about how many time a command was called, and how much |
71 | | - execution time it used (INFO commandstats). |
72 | | -* More predictable SORT behavior in edge cases. |
73 | | -* INCRBYFLOAT and HINCRBYFLOAT commands. |
74 | | - |
75 | | --------------------------------------------------------------------------------- |
76 | | - |
77 | | -Credits: Where not specified the implementation and design are done by |
78 | | -Salvatore Sanfilippo and Pieter Noordhuis. Thanks to VMware for making all |
79 | | -this possible. Also many thanks to all the other contributors and the amazing |
80 | | -community we have. |
81 | | - |
82 | | -See commit messages for more credits. |
83 | | - |
84 | | -Cheers, |
85 | | -Salvatore |
| 16 | +Happy hacking! |
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