Redis 8.0

What's new in Redis 8 in Redis Open Source

Highlights

• Name change: Redis Community Edition is now Redis Open Source

• License options:

  • Redis Source Available License 2.0 (RSALv2)
  • Server Side Public License v1 (SSPLv1)
  • GNU Affero General Public License (AGPLv3)

• Integrated modules now part of core:

  • JSON
  • Probabilistic: Bloom, Cuckoo, Count-min sketch, Top-K, and t-digest
  • Time Series
  • Vector sets (preview)
  • Redis Query Engine with horizontal & vertical scaling
  • All components available in Redis binary distributions
  • New config file: redis-full.conf for full component loading

New Commands

• Hash with expiration support:
  • HGETDEL – get and delete hash field
  • HGETEX, HSETEX – get/set hash fields with expiration
• Field TTL & expiration (7.4+):
  • HEXPIRE, HPEXPIRE, HEXPIREAT, HPEXPIREAT
  • HPERSIST, HEXPIRETIME, HPEXPIRETIME, HTTL, HPTTL
• Other command additions:
  • XREAD + – read latest stream entry
  • HSCAN NOVALUES – scan hash field names only
  • SORT in cluster mode with BY and GET
  • CLIENT KILL MAXAGE
  • Lua: os.clock() now available
  • SPUBLISH in MULTI/EXEC transactions on replicas
  • Vector set command group (preview)

Internal Architecture

• I/O threading overhaul: read+write threading for higher throughput
• Replication: improved mechanism with AOF offset support
• Over 30 performance optimizations:
  • Optimized: GET, EXISTS, LRANGE, HSET, XREAD, SCAN, ZADD, ZUNION, PFCOUNT, HSCAN, and more
  • Improved latency, memory, and CPU utilization

Security

• CVE-2024-46981: Lua RCE
• CVE-2024-51741: ACL DoS
• CVE-2024-31449, 31227, 31228: DoS in Lua/ACLs

Packaging

Redis 8 in Redis Open Source is available in the following distributions:

• Docker
• APT
• RPM
• Snap
• Homebrew
• Pre-built binaries
• Source code

Observability

• New INFO sections:
  • KEYSIZES, Threads
  • Hash expiration stats
  • Client buffer disconnection counters
  • Dictionary memory rehashing
  • Script eviction stats

Upgrades & Support

• Supports upgrade from:
  • Redis 7.x with or without modules
  • Redis Stack 7.2 and 7.4
• Supported operating systems:
  • Ubuntu 20.04 / 22.04 / 24.04
  • Debian 11 / 12
  • macOS 13–15
  • Rocky/Alma Linux 8.10 / 9.5