RS: Copied Search 8.4 rolling upgrade limitation to all affected RS release notes#3524
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Jun 18, 2026
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Note
Low Risk
Documentation-only edits to release notes; no product code or configuration behavior changes.
Overview
Adds the same Known limitations entry to eight Redis Software 8.0.x release note pages (
rs-8-0-10-64,10-76,10-81,16-29,16-33,18-23,18-36,20-19), matching text already on the RS 8.0 releases index.The new section documents that Redis Search queries can fail during rolling upgrades that cross the Redis 8.4 boundary when mixed shard versions coexist, tied to an 8.4 protocol change. It notes the issue applies only if
parallel_shards_upgradeis non-default (not0), and that Redis Search may be unavailable until every node finishes upgrading.Reviewed by Cursor Bugbot for commit b766ad9. Bugbot is set up for automated code reviews on this repo. Configure here.