🚀 Highlights

Redis 8.4 Support

Added support for Redis 8.4, including new commands and features (#3572)

Typed Errors

Introduced typed errors for better error handling using errors.As instead of string checks. Errors can now be wrapped and set to commands in hooks without breaking library functionality (#3602)

New Commands

• CAS/CAD Commands: Added support for Compare-And-Set/Compare-And-Delete operations with conditional matching (IFEQ, IFNE, IFDEQ, IFDNE) (#3583, #3595)
• MSETEX: Atomically set multiple key-value pairs with expiration options and conditional modes (#3580)
• XReadGroup CLAIM: Consume both incoming and idle pending entries from streams in a single call (#3578)
• ACL Commands: Added ACLGenPass, ACLUsers, and ACLWhoAmI (#3576)
• SLOWLOG Commands: Added SLOWLOG LEN and SLOWLOG RESET (#3585)
• LATENCY Commands: Added LATENCY LATEST and LATENCY RESET (#3584)

Search & Vector Improvements

• Hybrid Search: Added EXPERIMENTAL support for the new FT.HYBRID command (#3573)
• Vector Range: Added VRANGE command for vector sets (#3543)
• FT.INFO Enhancements: Added vector-specific attributes in FT.INFO response (#3596)

Connection Pool Improvements

• Improved Connection Success Rate: Implemented FIFO queue-based fairness and context pattern for connection creation to prevent premature cancellation under high concurrency (#3518)
• Connection State Machine: Resolved race conditions and improved pool performance with proper state tracking (#3559)
• Pool Performance: Significant performance improvements with faster semaphores, lockless hook manager, and reduced allocations (47-67% faster Get/Put operations) (#3565)

Metrics & Observability

• Canceled Metric Attribute: Added 'canceled' metrics attribute to distinguish context cancellation errors from other errors (#3566)

✨ New Features

• Typed errors with wrapping support (#3602) by @ndyakov
• CAS/CAD commands (marked as experimental) (#3583, #3595) by @ndyakov, @htemelski-redis
• MSETEX command support (#3580) by @ofekshenawa
• XReadGroup CLAIM argument (#3578) by @ofekshenawa
• ACL commands: GenPass, Users, WhoAmI (#3576) by @destinyoooo
• SLOWLOG commands: LEN, RESET (#3585) by @destinyoooo
• LATENCY commands: LATEST, RESET (#3584) by @destinyoooo
• Hybrid search command (FT.HYBRID) (#3573) by @htemelski-redis
• Vector range command (VRANGE) (#3543) by @cxljs
• Vector-specific attributes in FT.INFO (#3596) by @ndyakov
• Improved connection pool success rate with FIFO queue (#3518) by @cyningsun
• Canceled metrics attribute for context errors (#3566) by @pvragov

🐛 Bug Fixes

• Fixed Failover Client MaintNotificationsConfig (#3600) by @ajax16384
• Fixed ACLGenPass function to use the bit parameter (#3597) by @destinyoooo
• Return error instead of panic from commands (#3568) by @dragneelfps
• Safety harness in joinErrors to prevent panic (#3577) by @manisharma

⚡ Performance

• Connection state machine with race condition fixes (#3559) by @ndyakov
• Pool performance improvements: 47-67% faster Get/Put, 33% less memory, 50% fewer allocations (#3565) by @ndyakov

🧪 Testing & Infrastructure

• Updated to Redis 8.4.0 image (#3603) by @ndyakov
• Added Redis 8.4-RC1-pre to CI (#3572) by @ndyakov
• Refactored tests for idiomatic Go (#3561, #3562, #3563) by @12ya

👥 Contributors

We'd like to thank all the contributors who worked on this release!

@12ya, @ajax16384, @cxljs, @cyningsun, @destinyoooo, @dragneelfps, @htemelski-redis, @manisharma, @ndyakov, @ofekshenawa, @pvragov

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Full Changelog: https://github.com/redis/go-redis/compare/v9.16.0...v9.17.0