prefect-redis

0.2.11

Released on April 24, 2026

Enhancements ➕➕

• Batch-acknowledge Redis stream messages to reduce round-trips #21622 by @chuqCTC

---

0.2.10

Released on April 03, 2026

Features

• Add url field to RedisMessagingSettings for single-URL Redis connection configuration via PREFECT_REDIS_MESSAGING_URL #21210 by @solidnerd

Bug Fixes 🐞

• Log exception before sending message to DLQ in Redis messaging #21142 by @HemantDhaker12
• Move DLQ exception log to _send_to_dlq with clearer message #21144 by @desertaxle

---

0.2.9

Released on March 16, 2026

Bug Fixes 🐞

• Mark followers as seen and clean up lost follower Redis keys #20955 by @desertaxle
• Handle orphan Redis pending entries in consumer #20696 by @desertaxle
• Prevent race condition in causal ordering with atomic Lua script #20386 by @zzstoatzz
• Fix race condition in ephemeral consumer group cleanup #20435 by @zzstoatzz

Documentation 📝

• Set up automatic prefect-redis API reference docs via mdxify #20713 by @desertaxle

---

0.2.8

Released on December 19, 2025

Enhancements ➕➕

• Add retry logic for consumer reconnection on Redis errors #19817 by @zzstoatzz
• Unify definition of EventBeingProcessed type #19585 by @saschwartz

Bug Fixes 🐞

• Fix anyio fail_after usage #19583 by @saschwartz

---

0.2.7

Released on November 26, 2025

Features

• Parametrize xreadgroup batch size in consumer; Add EventPersister service setting for it #19545 by @saschwartz
• Also parametrize xautoclaim batch size #19557 by @saschwartz

Breaking Changes

• Remove Python 3.9 support #19273 by @desertaxle

---

0.2.6

Released on October 16, 2025

Features

• Fix race conditions in concurrency lease renewal #19187 by @bunchesofdonald

---

0.2.5

Released on September 19, 2025

Enhancements

• Update task concurrency slot orchestration rules to work with global concurrency limits #18983 by @desertaxle
• Add pagination support to lease storage read_active_lease_ids #18973 by @zzstoatzz
• Add list_holders_for_limit to ConcurrencyLeaseStorage protocol #18970 by @zzstoatzz
• Add holder parameter to V2 concurrency endpoints #18887 by @zzstoatzz
• Removes followers log from Redis CausalOrdering implementation #18870 by @desertaxle
• Update lease storage to include holder indexing and lookup via Lua scripts #18897 by @zzstoatzz

---

0.2.4

Released on August 14, 2025

Enhancements ➕➕

• Add Redis-based concurrency lease storage implementation by @desertaxle in #18646
  • New ConcurrencyLeaseStorage class for managing task and flow concurrency limits
  • Atomic lease operations using Redis pipelines
  • Support for lease expiration tracking and management

Bug Fixes 🐞

• Fix Redis stream trimming blocked by inactive consumer groups by @zzstoatzz in #18642
  • Added idle threshold checking to prevent abandoned consumer groups from blocking stream trimming
  • Automatic cleanup of empty consumer groups with ephemeral prefix
  • New PREFECT_REDIS_MESSAGING_CONSUMER_TRIM_IDLE_THRESHOLD setting (default: 5 minutes)

Development & Tidiness 🧹

• Bump minimum prefect version to 3.4.9 by @desertaxle in #18709