FastAPI (Python Web Framework) Breaking Changes & Release Tracker
Track FastAPI releases alongside underlying Starlette and Pydantic validation updates that affect request parsing, OpenAPI schema generation, and dependency injection.
Official Upstream Source: https://github.com/fastapi/fastapi/releases.atom ↗
Latest Tracked Releases (Free 3-Event Preview)
Structured release events and AI-extracted impact summaries from the live DevDiff pipeline.
FastAPI 0.159.0 release with Pydantic integration fixes and performance tweaks.
FastAPI 0.159.1 patch release addressing minor bug fixes and documentation updates.
Breaking change in FastAPI 0.160.0 affecting certain internal dependency behaviors.
Monitor Only FastAPI (Python Web Framework) ($19/mo) or Your Entire Stack
Choose the Solo Plan ($19/mo) to unlock the full historical JSON archive and Cursor/Claude MCP server for fastapi-releases alone, the Team Plan ($49/mo) for up to 5 selected services, or the Pro Plan ($149/mo) for all 15 services plus real-time Slack, Discord, and custom HTTP webhooks.
# Query full release history for fastapi-releases via REST API
curl -s -H "X-API-Key: df_live_your_api_key" \
"https://160-251-182-200.sslip.io/v1/diffs?target_id=fastapi-releases&limit=50" | jq .