Update CHANGELOG

Author: sdogruyol

CHANGELOG.md

@@ -4,7 +4,9 @@
 - Added observable `StoreError` events and `stats.store_errors` counters for cache backend failures.
 - Added non-raising `try_invalidate` and `try_clear_cache` helpers for operational cache management.
 - Added `Config#ttl_resolver` for per-route and per-cache-key TTL selection, with `nil` falling back to `expires_in`.
+- Added optional `Config#max_ttl` to clamp resolved and fallback TTL values to a configured upper bound.
 - Added validation to reject non-positive resolved TTL values.
+- Added validation to reject non-positive `max_ttl` values.
 
 # 1.1.0 (03-04-2026)