backstage/.changeset/curly-hats-tell.md

@backstage/backend-defaults, @backstage/backend-test-utils

@backstage/backend-defaults	@backstage/backend-test-utils
minor	minor

BREAKING Upgraded @keyv/redis and keyv packages to resolve a bug related to incorrect resolution of cache keys.

This is a breaking change for clients using the redis store for cache with useRedisSets option set to false since cache keys will be calculated differently (without the sets:namespace: prefix). For clients with default configuration (or useRedisSets set to false) the cache keys will stay the same, but since @keyv/redis library no longer supports redis sets they won't be utilised anymore.

If you were using useRedisSets option in configuration make sure to remove it from app-config.yaml:

backend:
  cache:
    store: redis
    connection: redis://user:pass@cache.example.com:6379
-   useRedisSets: false