Update module github.com/redis/go-redis/v9 to v9.18.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
github.com/redis/go-redis/v9	v9.17.3 → v9.18.0

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Release Notes

redis/go-redis (github.com/redis/go-redis/v9)

v9.18.0: 9.18.0

Compare Source

Redis 8.6 Support

Added support for Redis 8.6, including new commands and features for streams idempotent production and HOTKEYS.

Smart Client Handoff (Maintenance Notifications) for Cluster

note: Pending RS version release

This release introduces comprehensive support for Redis Enterprise Cluster maintenance notifications via SMIGRATING/SMIGRATED push notifications. The client now automatically handles slot migrations by:

• Relaxing timeouts during migration (SMIGRATING) to prevent false failures
• Triggering lazy cluster state reloads upon completion (SMIGRATED)
• Enabling seamless operations during Redis Enterprise maintenance windows

(#​3643) by @​ndyakov

OpenTelemetry Native Metrics Support

Added comprehensive OpenTelemetry metrics support following the OpenTelemetry Database Client Semantic Conventions. The implementation uses a Bridge Pattern to keep the core library dependency-free while providing optional metrics instrumentation through the new extra/redisotel-native package.

Metric groups include:

• Command metrics: Operation duration with retry tracking
• Connection basic: Connection count and creation time
• Resiliency: Errors, handoffs, timeout relaxation
• Connection advanced: Wait time and use time
• Pubsub metrics: Published and received messages
• Stream metrics: Processing duration and maintenance notifications

(#​3637) by @​ofekshenawa

✨ New Features

• HOTKEYS Commands: Added support for Redis HOTKEYS feature for identifying hot keys based on CPU consumption and network utilization (#​3695) by @​ofekshenawa
• Streams Idempotent Production: Added support for Redis 8.6+ Streams Idempotent Production with ProducerID, IdempotentID, IdempotentAuto in XAddArgs and new XCFGSET command (#​3693) by @​ofekshenawa
• NaN Values for TimeSeries: Added support for NaN (Not a Number) values in Redis time series commands (#​3687) by @​ofekshenawa
• DialerRetries Options: Added DialerRetries and DialerRetryTimeout to ClusterOptions, RingOptions, and FailoverOptions (#​3686) by @​naveenchander30
• ConnMaxLifetimeJitter: Added jitter configuration to distribute connection expiration times and prevent thundering herd (#​3666) by @​cyningsun
• Digest Helper Functions: Added DigestString and DigestBytes helper functions for client-side xxh3 hashing compatible with Redis DIGEST command (#​3679) by @​ofekshenawa
• SMIGRATED New Format: Updated SMIGRATED parser to support new format and remember original host:port (#​3697) by @​ndyakov
• Cluster State Reload Interval: Added cluster state reload interval option for maintenance notifications (#​3663) by @​ndyakov

🐛 Bug Fixes

• PubSub nil pointer dereference: Fixed nil pointer dereference in PubSub after WithTimeout() - pubSubPool is now properly cloned (#​3710) by @​Copilot
• MaintNotificationsConfig nil check: Guard against nil MaintNotificationsConfig in initConn (#​3707) by @​veeceey
• wantConnQueue zombie elements: Fixed zombie wantConn elements accumulation in wantConnQueue (#​3680) by @​cyningsun
• XADD/XTRIM approx flag: Fixed XADD and XTRIM to use = when approx is false (#​3684) by @​ndyakov
• Sentinel timeout retry: When connection to a sentinel times out, attempt to connect to other sentinels (#​3654) by @​cxljs

⚡ Performance

• Fuzz test optimization: Eliminated repeated string conversions, used functional approach for cleaner operation selection (#​3692) by @​feiguoL
• Pre-allocate capacity: Pre-allocate slice capacity to prevent multiple capacity expansions (#​3689) by @​feelshu

🧪 Testing

• Comprehensive TLS tests: Added comprehensive TLS tests and example for standalone, cluster, and certificate authentication (#​3681) by @​ndyakov
• Redis 8.6: Updated CI to use Redis 8.6-pre (#​3685) by @​ndyakov

🧰 Maintenance

• Deprecation warnings: Added deprecation warnings for commands based on Redis documentation (#​3673) by @​ndyakov
• Use errors.Join(): Replaced custom error join function with standard library errors.Join() (#​3653) by @​cxljs
• Use Go 1.21 min/max: Use Go 1.21's built-in min/max functions (#​3656) by @​cxljs
• Proper formatting: Code formatting improvements (#​3670) by @​12ya
• Set commands documentation: Added comprehensive documentation to all set command methods (#​3642) by @​iamamirsalehi
• MaxActiveConns docs: Added default value documentation for MaxActiveConns (#​3674) by @​codykaup
• README example update: Updated README example (#​3657) by @​cxljs
• Cluster maintnotif example: Added example application for cluster maintenance notifications (#​3651) by @​ndyakov

👥 Contributors

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

@​12ya, @​Copilot, @​codykaup, @​cxljs, @​cyningsun, @​feelshu, @​feiguoL, @​iamamirsalehi, @​naveenchander30, @​ndyakov, @​ofekshenawa, @​veeceey

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 67.00%. Comparing base (d41c8f2) to head (7b2ba45).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3837      +/-   ##
==========================================
+ Coverage   66.92%   67.00%   +0.07%     
==========================================
  Files         441      441              
  Lines       43689    43689              
==========================================
+ Hits        29241    29274      +33     
+ Misses      12192    12157      -35     
- Partials     2256     2258       +2     

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