v0.21.0

0.21.0 (2026-08-25)

⚠ BREAKING CHANGES

• redis: DialCacheRedisClient.write() now returns void and
  RedisWriteRequest no longer accepts watermarkKey. The placeholder/stamp
  protocol and related exports,
  dialcacheRedisScripts/DialCacheNodeRedisScripts registration facade,
  ValkeyGlideRuntime.ClusterBatch requirement, and fill_blocked outcome
  are removed; MetricErrorKind adds tracked_ttl_clamped; and the
  Prometheus future-timestamp histogram bucket schema changes. Node-redis
  clients should be created without DialCache script registration.

Features

• redis: simplify tracked writes with client clocks (#140) (e5d88e2)