Backport Unstable to 9.1 for RC2#3519

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sarthakaggarwal97 wants to merge 46 commits intovalkey-io:9.1from

sarthakaggarwal97:cherry-pick-unstable-to-9.1

Commits on Apr 16, 2026

Fix incorrect memory overhead calculation for watched keys (#3359)

enjoy-binbin
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Make macOS leaks check skippable (#3370)

hpatro
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Make scripting debug test skippable (#3368)

secwall
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Add design-docs folder and README. (#3300)

murphyjacob4
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Add AGENTS.md file for agentic coding assistant steering (#3371)

hpatro
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remove duplicated lline (#3379)

ranshid
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Ensure the daily workflow uses gtest-parallel to run unit tests in isolation (#3375)

harrylin98
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CLUSTERSCAN MATCH pattern maps to a specific slot optimizations (#3380)

nmvk
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fix benchmark queue and reduce the total duration (#3387)

roshkhatri
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Pin workflow pip/go/npm dependencies for OpenSSF compliance (#3276)

roshkhatri
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Upload all benchmark artifacts including server logs (#3388)

roshkhatri
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Fix `valkey-cli --cluster del-node` for unreachable nodes (#3209)

yang-z-o
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ci: include gtests in code coverage report

harrylin98
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Fix EntryTest.entryUpdate failure on macOS due to allocator differences (#3398)

asagege
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ARM NEON SIMD optimization for pvFind() in vset.c (#3033)

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Do the failover immediately if the replica is the best ranked replica (#2227)

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Fix race condition in diskless swapdb RedisModuleEvent_ReplAsyncLoad tests (#3404)

Nikhil-Manglore
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Show uname -a in RDMA CI job (#3418)

pizhenwei
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Improve listpack threshold guidance in valkey.conf (#3419)

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fix test_entry to consider diffrerent allocator size classes (#3416)

ranshid
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Handle EAGAIN in clusterWriteHandler (#3421)

enjoy-binbin
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Optimize WATCH duplicate key check from O(N) to O(1) using per-db hashtable (#3360)

enjoy-binbin
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Reduce corrupt-dump-fuzzer tests from 10 to 1 minute (#3425)

zuiderkwast
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Increase timeout in flaky "failover immediately" test case (#3424)

zuiderkwast
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Enhance cluster stale packet detection to prevent sub-replica and empty primary (#2811)

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Fix some flaky tests (#3430)

zuiderkwast
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Big endian bitmap byte order mismatch fix (#3401)

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Fix VLA warning in linenoise and enable -Werror (#3439)

madolson
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Avoid having server.h being included by cli and benchmark (#3420)

ranshid
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Grammar, spelling, and punctuation fixes across the summary fields for Valkey commands. (#3309)

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Update maintainer affiliation (#3449)

lucasyonge
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Increase embedded string threshold from 64 to 128 bytes (#3397)

Nikhil-Manglore
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Fix RDB expiry write length and leak when loading zipmap (#3422)

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Fix some flaky tests using CLIENT REPLY OFF (#3452)

zuiderkwast
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Skip faster-failover test under TLS (#3444)

nmvk
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Fix slot-migration-max-failover-repl-bytes unable to accept -1 (#3443)

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Attempt to deflake 'diskless no replicas drop during rdb pipe' (#3461)

zuiderkwast
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Fix config rewrite producing negative values for unsigned memory configs (#3440)

enjoy-binbin
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Fix trivial double-free issue in rdbLoadObject (#3453)

charsyam
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Increase timeouts in faster-failover test for slow CI runners (#3463)

roshkhatri
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Defer argument redaction by storing indices instead of rewriting argv (#3471)

rjd15372
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Add cluster-config-save-behavior option to control nodes.conf save behavior (#3372)

enjoy-binbin
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Adds new (hidden) ValkeyModule_CallArgv API functions (#3122)

rjd15372
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Redesign IO threading communication model (#3324)

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Change rdbSaveStreamConsumers return type from size_t to ssize_t (#3499)

enjoy-binbin
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Rewrite the faster failover test case (#3495)

enjoy-binbin
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