chore(deps): update module github.com/redis/go-redis/v9 to v9.21.0

[red-hat-konflux]

This PR contains the following updates:

Package	Change	Age	Confidence
github.com/redis/go-redis/v9	v9.19.0 → v9.21.0

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Release Notes

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

v9.21.0: 9.21.0

Compare Source

This is a minor release adding new features and bug fixes. There are no breaking changes; upgrading from 9.20.x is a drop-in replacement.

🚀 Highlights

Zero-copy GetToBuffer / SetFromBuffer

Two new StringCmdable methods let callers read and write Redis string values directly into and from pre-allocated byte buffers, eliminating the per-call payload allocation that Get/Set incur:

GetToBuffer(ctx, key, buf) *ZeroCopyStringCmd   // reads into buf; ZeroCopyStringCmd { Val() int; Bytes() []byte; Result() (int, error) }
SetFromBuffer(ctx, key, buf) *StatusCmd

GetToBuffer decodes the bulk reply straight into the caller-owned buf (no intermediate allocation); a buffer that is too small returns an error after draining the payload, so the connection stays aligned for the next reply. SetFromBuffer is provided for API symmetry — it dispatches to the same []byte writer path as Set(ctx, key, buf, 0) and produces byte-identical output on the wire. Available on *Client, *ClusterClient, *Ring, *Conn and Pipeliner.

(#​3834) by @​ndyakov

Explicit LIMIT 0 for stream trimming

Redis treats XTRIM/XADD approximate-trim (~) LIMIT 0 as "disable the trimming effort cap entirely", which differs from omitting LIMIT (the implicit 100 * stream-node-max-entries default). The command builders previously only emitted LIMIT when limit > 0, so callers could never send an explicit LIMIT 0. Following the KeepTTL = -1 precedent, the new XTrimLimitDisabled = -1 sentinel now emits an explicit LIMIT 0; limit == 0 keeps the historical no-LIMIT behavior, so existing callers produce byte-identical commands.

(#​3848) by @​TheRealMal

✨ New Features

• Zero-copy buffer string commands: new GetToBuffer / SetFromBuffer on StringCmdable and the ZeroCopyStringCmd result type, reading/writing string values into caller-owned buffers without per-call payload allocation (#​3834) by @​ndyakov
• XTrimLimitDisabled sentinel: XTRIM/XADD approximate trimming can now send an explicit LIMIT 0 to disable the trim effort cap, via the new XTrimLimitDisabled = -1 sentinel (#​3848) by @​TheRealMal
• PubSub health-check timeouts: channel.initHealthCheck now bounds the Ping it issues with a fresh per-check timeout context (the exported pingTimeout / reconnectTimeout) instead of context.TODO(), so a stuck health-check Ping can no longer block indefinitely (#​3819) by @​abdellani
• Skip redundant UNWATCH in Tx.Close: a transaction now tracks whether a WATCH is still active (watchArmed) and only issues UNWATCH on Close when it is, removing an extra round trip on the common WATCH/.../EXEC and no-key Watch paths while never returning a connection to the pool with an active watch (#​3854) by @​fcostaoliveira

🐛 Bug Fixes

• maintnotifications ModeAuto fail-open: ModeAuto now stays fail-open when the server does not support maintenance notifications — connections are retired and tracking is guarded during downgrade so the client keeps working instead of erroring (#​3853) by @​terrorobe

👥 Contributors

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

@​abdellani, @​fcostaoliveira, @​ndyakov, @​terrorobe, @​TheRealMal

v9.20.1: 9.20.1

Compare Source

This is a patch release containing bug fixes only. There are no new features or breaking changes; upgrading from 9.20.0 is a drop-in replacement.

🚀 Highlights

RESP3 pub/sub message loss fixed

PeekPushNotificationName previously inspected only the bytes already buffered by bufio, so when a push frame header straddled a buffer fill boundary it could return a truncated notification name (e.g. "messa" instead of "message"). The push processor then mis-routed the frame and ReadReply silently dropped it, causing intermittent RESP3 pub/sub message loss. The peek now grows its window (36 bytes → up to 4 KiB) and reads more from the connection until the header is complete, cleanly separating incomplete prefixes from corrupt frames (including overflow-safe bulk-length handling). Fixes #​3839.

(#​3842) by @​ndyakov

🐛 Bug Fixes

• RESP3 push peeking: PeekPushNotificationName no longer returns a truncated notification name when a push frame header spans a buffer boundary, preventing silent RESP3 pub/sub message loss (fixes #​3839) (#​3842) by @​ndyakov
• FT.HYBRID vector params: Vector data is now always sent via PARAMS with auto-generated param names (__vector_param_N, with collision avoidance) when VectorParamName is omitted, since Redis no longer accepts inline vector blobs; the FTHybridOptions.Params map is no longer mutated, so the same options struct can be reused across calls (#​3844) by @​ndyakov
• CLUSTER SHARDS forward compatibility: Unknown shard- and node-level attributes in the CLUSTER SHARDS reply are now skipped via DiscardNext() instead of erroring, so clients keep working when the server introduces new fields (#​3843) by @​madolson
• PubSub double reconnect: PubSub.releaseConn no longer reconnects twice when a connection is both unusable (or pending handoff) and reports a bad-connection error, avoiding a wasted connection establish-then-close cycle (#​3833) by @​cxljs

👥 Contributors

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

@​cxljs, @​madolson, @​ndyakov

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Full Changelog: redis/go-redis@v9.20.0...v9.20.1

v9.20.0: 9.20.0

Compare Source

🚀 Highlights

Redis 8.8 Support

This release adds support for Redis 8.8. The README's supported-versions list now includes Redis 8.8 alongside 8.0/8.2/8.4, and CI exercises the 8.8 client-libs-test image across the full suite (Makefile, build workflow, doctests, run-tests action, and docker-compose).

Coverage for the new commands that ship in the 8.x line, rounded out in this release:

• AR* array data type (#​3813) — new array data structure, exposed via the ArrayCmdable interface (see the experimental-features highlight below).
• INCREX (#​3816) — atomic increment with expiration in a single round-trip.
• XNACK (#​3790) — explicit negative-acknowledge of pending stream entries.
• XAUTOCLAIM PEL deletes (#​3798) — XAUTOCLAIM/XAUTOCLAIMJUSTID now return the list of deleted message IDs from the pending entries list.
• TS.RANGE multiple aggregators (#​3791) — TS.RANGE/TS.REVRANGE/TS.MRANGE/TS.MREVRANGE accept multiple aggregators in a single call.
• Z(UNION|INTER|DIFF) COUNT aggregator (#​3802) — COUNT reducer for sorted-set set operations.
• JSON.SET FPHA (#​3797) — new FPHA argument that specifies the floating-point type for homogeneous FP arrays.

CI image bump (#​3814) by @​ofekshenawa. Command coverage contributions by @​cxljs, @​elena-kolevska, @​Khukharr, @​ndyakov, and @​ofekshenawa.

Stable RESP3 for RediSearch (UnstableResp3 deprecated)

FT.SEARCH, FT.AGGREGATE, FT.INFO, FT.SPELLCHECK, and FT.SYNDUMP now parse RESP3 (map) responses into the same typed result objects as RESP2 — Val() and Result() work uniformly on both protocols, no flag required. Previously, RESP3 search responses required UnstableResp3: true and were returned as opaque maps accessible only via RawResult() / RawVal().

As a result, the UnstableResp3 option is now a no-op across every options struct (Options, ClusterOptions, UniversalOptions, FailoverOptions, RingOptions) and has been marked // Deprecated:. The field is retained for backwards compatibility — existing code that sets UnstableResp3: true will continue to compile and behave identically — but it will be removed in a future release and new code should not set it. RawResult() / RawVal() continue to work for callers that prefer the raw RESP payload.

(#​3741) by @​ndyakov

Experimental Array Data Structure Commands

Adds an experimental ArrayCmdable interface with the AR* command family (ARSet, ARGet, ARGetRange, ARMSet, ARMGet, ARDel, ARDelRange, ARScan, ARSeek, ARNext, ARLastItems, ARGrep, ARGrepWithValues, ARInfo/ARInfoFull, and typed reducers AROpSum/AROpMin/AROpMax/AROpAnd/AROpOr/AROpXor/AROpMatch/AROpUsed) for working with Redis 8.8's new array data type. API is experimental and may change in a future release.

(#​3813) by @​cxljs

✨ New Features

• RESP3 search parser: First-class RESP3 parsing for FT.SEARCH/FT.AGGREGATE/FT.INFO/FT.SPELLCHECK/FT.SYNDUMP responses with backwards compatibility for RESP2 (#​3741) by @​ndyakov
• INCREX: New INCREX command support — atomic increment with expiration (#​3816) by @​ndyakov
• XNACK: Client support for the XNACK stream command for explicitly negative-acknowledging pending entries (#​3790) by @​elena-kolevska
• TS range multiple aggregators: TS.RANGE/TS.REVRANGE/TS.MRANGE/TS.MREVRANGE now accept multiple aggregators in a single call (#​3791) by @​elena-kolevska
• XAutoClaim deleted IDs: XAUTOCLAIM/XAUTOCLAIMJUSTID now return the list of deleted message IDs from the PEL (#​3798) by @​Khukharr
• JSON.SET FPHA: JSON.SET accepts a new FPHA argument that specifies the floating-point type for homogeneous floating-point arrays (#​3797) by @​ndyakov
• Sorted-set union/intersection COUNT: ZUNION/ZINTER/ZDIFF aggregator now supports COUNT (#​3802) by @​ofekshenawa
• FT.HYBRID vector validation: Validates hybrid-search vector input types and adds proper typed vector parameters (#​3756) by @​DengY11
• Cluster pool wait stats: ClusterClient.PoolStats() now accumulates WaitCount and WaitDurationNs across all node pools (previously always zero) (#​3809) by @​LINKIWI

🐛 Bug Fixes

• TLS-only Cluster PubSub: CLUSTER SLOTS port-0 entries now fall back to the origin endpoint's port, fixing dial tcp <ip>:0: connection refused on TLS-only clusters started with --port 0 --tls-port <port> (fixes #​3726) (#​3828) by @​ndyakov
• Sharded PubSub reconnect routing: PubSub.conn() now passes both regular (c.channels) and sharded (c.schannels) channels into the per-PubSub newConn closure. Previously, ClusterClient.SSubscribe-only PubSubs reconnected to a random node (because the routing closure saw an empty channel list), the SSUBSCRIBE was sent to the wrong shard, and the resulting MOVED reply was silently dropped (#​3829) by @​ndyakov
• ClusterClient Watch retry: User errors returned from a Watch callback are no longer subjected to cluster-retry classification; transient cluster errors still retry, but a callback returning e.g. net.ErrClosed short-circuits immediately (#​3821) by @​obiyang
• Sentinel concurrent-probe leak: MasterAddr's concurrent sentinel probe now closes the non-winning sentinel clients instead of leaking them (#​3827) by @​cxljs
• Sentinel rediscovery loop on master-only setups: replicaAddrs no longer tears down the cached sentinel client when the replica list is empty, eliminating a continuous rediscovery loop on master-only Sentinel deployments that flooded logs and added per-operation latency (#​3795) by @​shahyash2609
• Pool CloseConn hooks: Pool.CloseConn now triggers registered hooks, fixing a memory leak when connections are closed explicitly rather than via the normal removal path (#​3818) by @​ndyakov
• Dial TCP error redirection: Wrapped dial tcp errors are now correctly classified as redirectable so cluster routing can recover from a single unreachable node (#​3810) by @​vladisa88
• Pool Close health checks: ConnPool.Close now only runs health checks against idle connections, avoiding spurious activity on connections still in use (#​3805) by @​ndyakov
• VLinks return type: Fixed the return type of VLINKS/VLINKSWITHSCORES vector-set replies (#​3820) by @​romanpovol

🧪 Testing & Infrastructure

• Flaky tests: Stabilized several flaky tests in the sentinel and pool suites (#​3815) by @​ndyakov
• Sentinel failover metric race: Fixed a data race in the sentinel failover metric test (#​3824) by @​cxljs
• waitForSentinelClusterStable post-conditions: The sentinel test harness now waits for replicas to be fully connected (not just present in the count) and is robust to randomized spec ordering after failover specs, eliminating an intermittent Expected master to equal slave flake (#​3830) by @​ndyakov
• govulncheck workflow: New scheduled GitHub Actions workflow runs govulncheck on every push, PR, and weekly, surfacing newly disclosed Go vulnerabilities even when no code changes (#​3779) by @​solardome
• CI Redis 8.8-rc1: CI now exercises the 8.8-rc1 Redis image (#​3814) by @​ofekshenawa

🧰 Maintenance

• Cmd.Slot() lookup refactor: Caches the per-command CommandInfo and short-circuits keyless commands before the switch dispatch, removing redundant Peek calls (#​3804) by @​retr0-kernel
• stdlib math/rand: Replaced internal/rand with math/rand from the standard library now that the minimum Go version is 1.24 (#​3823) by @​cxljs
• ConnPool queue channel: Removed the unused queue channel from ConnPool, trimming the pool's footprint (#​3826) by @​cxljs
• Extra packages LICENSE: Added a LICENSE file to each extra/* package (#​3817) by @​ndyakov
• README & CI image: Documentation refresh and bumped the default CI image tag (#​3822) by @​ndyakov

👥 Contributors

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

@​cxljs, @​DengY11, @​elena-kolevska, @​Khukharr, @​LINKIWI, @​ndyakov, @​obiyang, @​ofekshenawa, @​retr0-kernel, @​romanpovol, @​shahyash2609, @​solardome, @​vladisa88

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Full Changelog: redis/go-redis@v9.19.0...v9.20.0

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[coderabbitai]

Walkthrough

This change updates the indirect dependency github.com/redis/go-redis/v9 in go.mod from version v9.19.0 to v9.21.0. No other files, dependencies, or exported entities are modified.

Changes

Dependency Update

Layer / File(s)	Summary
Update go-redis dependency version go.mod	Bumped the indirect dependency github.com/redis/go-redis/v9 from v9.19.0 to v9.21.0.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 Pre-merge checks | ✅ 15

✅ Passed checks (15 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Stable And Deterministic Test Names	✅ Passed	No _test.go files or Ginkgo-style test titles were changed; the PR only updates go.mod and vendored go-redis sources/docs.
Test Structure And Quality	✅ Passed	No Ginkgo test files were changed; this PR only bumps go-redis/vendor metadata, so the test-structure check is not applicable.
Microshift Test Compatibility	✅ Passed	No new Ginkgo/e2e test files or test declarations were added; the PR only updates go-redis vendor/dependencies, so MicroShift compatibility is not implicated.
Single Node Openshift (Sno) Test Compatibility	✅ Passed	No new Ginkgo/e2e tests were added; the diff only updates vendored go-redis code and dependency metadata.
Topology-Aware Scheduling Compatibility	✅ Passed	Only go.mod/go.sum and vendored go-redis files changed; no deployment manifests, operators, or controllers introduced scheduling constraints.
Ote Binary Stdout Contract	✅ Passed	PR only updates vendored go-redis; diff shows no new process-level stdout writes in main/init/setup code.
Ipv6 And Disconnected Network Test Compatibility	✅ Passed	No *_test.go files or Ginkgo e2e tests were added; this PR is a dependency/vendor bump only.
No-Weak-Crypto	✅ Passed	PASS: Diff only bumps go-redis v9.19.0→v9.21.0; no added MD5/SHA1/DES/RC4/3DES/Blowfish/ECB, custom crypto, or non-constant-time secret compares found.
Container-Privileges	✅ Passed	The PR only bumps go-redis and a docker-compose image tag; no changed container/K8s manifest contains privileged, hostPID/Network/IPC, SYS_ADMIN, or allowPrivilegeEscalation.
No-Sensitive-Data-In-Logs	✅ Passed	PR only updates vendored go-redis; no new log calls with secrets/PII were added. Existing host/address logs predated this change.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the dependency upgrade to github.com/redis/go-redis/v9 v9.21.0.

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• Commit unit tests in branch konflux/mintmaker/main/github.com-redis-go-redis-v9-9.x

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