Help Center/ Distributed Cache Service/ Service Overview/ Comparing Versions and Specifications/ Open Source Redis Versions
Updated on 2025-07-25 GMT+08:00
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Open Source Redis Versions

DCS for Redis is fully compatible with open-source Redis. This document describes the feature and compatibility updates of each Redis version.

Open Source Redis 7.2

New Features

See Valkey 7.2 release notes, Redis 7.2 release notes, and Redis 7.0 release notes.

  • Introduced multi-part AOFs. A multi-part AOF splits an AOF into multiple small files, improving persistence reliability and recovery efficiency.
  • Introduced Redis Functions. You can define and store functions through Lua scripts and the scripts can be reused later.
  • Introduced new commands, such as ZMPOP and BZMPOP.
  • Introduced sharded pub/sub for Redis Clusters to process Publish/Subscribe messages more efficiently.

Compatibility

Open Source Redis 6.2

New Features

See Redis 6.2 release notes and Redis 6.0 release notes.

  • Added support for SSL and TLS encryption communication to ensure client-server data transmission security.
  • Introduced Redis Serialization Protocol 3 (RESP3). More data types and semantics, and RESP2 compatibility are available.
  • Introduced new commands, such as ZRANDMEMBER and COPY.

Compatibility

  • For details about breaking changes of open source Redis versions, see Redis 6.2 release notes and Redis 6.0 release notes.
  • Supported SSL.
  • Compatible with RESP2 and RESP3.
  • Supported user management which is different from open-source ACL. User read-only and read/write permissions are controlled. The username and password are specified in the username:password or username password format. For details, see Configuring DCS Redis ACL Users.

Open Source Redis 5.0

New Features

See Redis 5.0 release notes.

  • Introduced the stream type for message streams and log data.
  • Optimized the RDB file format. The size and loading time of persistence files are reduced.
  • Introduced new commands and options, such as XCLAIM, XINFO, and XTRIM.

Compatibility

For details about breaking changes of open source Redis versions, see Redis 5.0 release notes.

Open Source Redis 4.0

New Features

See Redis 4.0 release notes.

  • Introduced modules. Developers can extend Redis through modules instead of modifying Redis source code.
  • Optimized the replication protocol. Supported partial re-synchronization. Data synchronization can be more efficient even after master and replica servers are disconnected.
  • Added the least frequently used (LFU) policy. Redis can evict cache data by key usage frequency, in addition to the least recently used (LRU) policy.
  • Introduced the hybrid persistence mode. An RDB snapshot can be embedded in an AOF, ensuring data security in faster recovery.
  • Introduced new commands and options, such as MEMORY and SWAPDB.

Compatibility

  • For details about breaking changes of open source Redis versions, see Redis 4.0 release notes.
  • SSL is not supported.
  • RESP2 is supported.
  • Supported user management. User read-only and read/write permissions are controlled. The username and password are specified in the username:password format. For details, see Configuring DCS Redis ACL Users.