PrefectHQ/prefect 3.4.25

3.4.25 - A slice of π-thon

on GitHub

Released on October 23, 2025

Enhancements ➕➕

• Add Python 3.14 support by @desertaxle in #19119
• Unify sync and async client methods by @hanhwanglim in #19217

Bug Fixes 🐞

• Upgrade Docker image SQLite to 3.50.4 to address CVE-2025-6965 by @desertaxle in #19214
• Fix GitLab credentials for self-hosted instances and deploy tokens by @zzstoatzz in #19227
• Make MemoryLockManager serializable with cloudpickle by @desertaxle in #19246
• Suppress noisy concurrency warnings for automatic tag-based checks by @desertaxle in #19254
• Fix work pool env vars being overwritten by variable defaults by @desertaxle in #19258

Development & Tidiness 🧹

• Fix non-deterministic test flake in PREFECT_EXPERIMENTS_PLUGINS_ALLOW tests by @zzstoatzz in #19203
• Add generate-cli-docs to justfile by @desertaxle in #19245
• Add uv and gh as allowed tools for Claude in GitHub Actions by @desertaxle in #19210
• Refactor git credential formatting to fix leaky abstraction by @zzstoatzz in #19236

Documentation 📓

• Correct worker --limit argument documentation by @desertaxle in #19244
• Add pydantic-ai data analyst example by @desertaxle in #19209
• Update Prefect MCP status in docs by @zzstoatzz in #19213
• Correct Modal dashboard link by @jesse-c in #19240
• Fix repository name capitalization in README example by @gowtham1412-p in #19260

Full Changelog: 3.4.24...3.4.25