Redis uses a standard practice for its versioning: major.minor.patchlevel. An even minor marks a stable release, like 1.2, 2.0, 2.2, 2.4, 2.6, 2.8. Odd minors are used for unstable releases, for example 2.9.x releases are the unstable versions of what will be Redis 3.0 once stable.
Stable (4.0)Redis 4.0 was released as GA in July 2017. Contains several big improvements: a modules system, much better replication (PSYNC2), improvements to eviction policies, threaded DEL/FLUSH, mixed RDB+AOF format, Raspberry Pi support as primary platform, the new MEMORY command, Redis Cluster support for Nat/Docker, active memory defragmentation, memory usage and performance improvements, much faster Redis Cluster key creation, many other smaller features and a number of behavior fixed.
UnstableThis is where all the development happens. Only for hard-core hackers. Use only if you need to test the latest features or performance improvements. This is going to be the next Redis release in a few months.
Beta (5.0)Redis 5.0 is the first version of Redis to introduce the new stream data type with consumer groups, sorted sets blocking pop operations, LFU/LRU info in RDB, Cluster manager inside redis-cli, active defragmentation V2, HyperLogLogs improvements and many other smaller improvements.
DockerIt is possible to get Docker images of Redis from the Docker Hub. Multiple versions are available, usually updated in a short time after a new release is available.
Old (3.2)Redis 3.2 is the previous stable release. Does not include all the improvements in Redis 4.0 but is a very battle tested release, probably a good pick for critical applications while 4.0 matures more in the next months.
See the release notes or download 3.2.12.
*OtherHistorical downloads are still available on Google Code.
Scripts and other automatic downloads can easily access the tarball of the latest Redis stable version at http://download.redis.io/redis-stable.tar.gz. The source code of the latest stable release is always browsable here, use the file src/version.h in order to extract the version in an automatic way.
*How to verify files for integrity
The Github repository redis-hashes contains a README file with SHA1 digests of released tarball archives. Note: the generic redis-stable.tar.gz tarball does not match any hash because it is modified to untar to the redis-stable directory.
Download, extract and compile Redis with:
$ wget http://download.redis.io/releases/redis-4.0.11.tar.gz $ tar xzf redis-4.0.11.tar.gz $ cd redis-4.0.11 $ make
The binaries that are now compiled are available in the
directory. Run Redis with:
You can interact with Redis using the built-in client:
$ src/redis-cli redis> set foo bar OK redis> get foo "bar"
Are you new to Redis? Try our online, interactive tutorial.