> ## Documentation Index
> Fetch the complete documentation index at: https://docs.stigg.io/llms.txt
> Use this file to discover all available pages before exploring further.
# Cache Redis Store
`@stigg/cache-redis-store` provides the Redis-backed cache store implementation — including distributed locking and single-execution helpers — built on the shared entities from [Cache Core](/api-and-sdks/changelog/backend-graphql/cache-core). It's used by `persistent-cache-service` and by `@stigg/node-server-sdk`'s Redis integration.
* Versions 1.17.0 through 1.28.0 (2026-05-19 to 2026-07-05) carried no functional change to `cache-redis-store` itself — each only bumped the package version to track releases of other packages in the monorepo.
* Added: support for disabling Redis cache expiration by setting `ttl` to a negative value (e.g. `-1`, matching Redis's own no-expiry convention). Entries are then written without the `EX` flag and remain authoritative through extended Stigg Cloud outages. Default behavior is unchanged (TTL stays on when `ttl` is unset). Consumed by `@stigg/node-server-sdk` v4.41.0+ (`redis.ttl: -1`) and `persistent-cache-service` v3.6.1+ (`KEYS_TTL_IN_SECS=-1`) for end-to-end no-expiry behavior.
* Initial release. Extracted the Redis cache store, distributed locks, and cache key helpers out of `persistent-cache-service` into a standalone package, published alongside `@stigg/cache-core`. No behavior change from the extraction itself.
## Related topics
- [Cache Core](/api-and-sdks/changelog/backend-graphql/cache-core.md)
- [Persistent Cache Service](/api-and-sdks/changelog/backend-graphql/persistent-cache.md)
- [Sidecar Failure patterns and triage](/documentation/high-availability-and-scale/sidecar/failure-patterns.md)
- [I want to run Stigg Sidecar and API in production](/guides/i-want-to/run-stigg-sidecar-api-in-production.md)
- [Persistent cache](/documentation/high-availability-and-scale/persistent-caching.md)