What pydantic/logfire shipped
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Week of September 14, 2026
What shipped
- Event [15]: Logfire 6 splits into logfire-sdk and logfire-cli as separate distributions, with logfire installing both while maintaining backward compatibility. Release
- Event [5]: Logfire 6.0.0b3 released, requiring logfire-cli 0.1.5 or later. Release
- Event [8]: Logfire 6.0.0b2 released with support for console scripts in logfire run. Release
- Event [4]: instrument_mcp() now works with mcp 2 and fastmcp 4. Pull request #2439
- Event [20]: Added instrument_snowflake() to instrument snowflake-connector-python with span per query including SQL text and row count. Pull request #2348
- Event [12]: logfire run now executes installed Python console_scripts entry points cross-platform. Pull request #2427
- Event [1]: Public quickstart documentation updated to use uvx logfire-cli setup as the primary setup command. Pull request #2435
- Event [0]: Added public guide for Public Conversations in Early Access covering security boundaries, expiration, and management. Pull request #2445
- Event [3]: Documented passwordless account creation and email-code sign-in with two-factor behavior. Pull request #2440
- Event [7]: Embedded tutorial videos for Services, Session Replay investigation, and Frontend guides. Pull request #2436
Why it matters
Logfire 6 is now separated into independent SDK and CLI packages, providing better modularity for users who need only the Python SDK. Multiple new integrations and features landed this week, including Snowflake support and MCP 2 compatibility. Documentation improvements make onboarding simpler with the CLI-first setup path.
Changelog entry
- Breaking: Logfire 6 splits into logfire-sdk and logfire-cli packages; logfire installs both by default Release
- Released v6.0.0b3 with logfire-cli 0.1.5 requirement Release
- Released v6.0.0b2 with console scripts support in logfire run Release
- Added instrument_snowflake() for snowflake-connector-python instrumentation Pull request #2348
- Fixed instrument_mcp() compatibility with mcp 2 and fastmcp 4 Pull request #2439
- logfire run now supports executing console_scripts entry points Pull request #2427
- Updated browser instrumentation to use configureFrontend for React and Next.js Pull request #2425
- Documented email-code sign-in and passwordless account creation Pull request #2440
Logfire 6.0.0b3 shipped. SDK and CLI now split into separate packages—install logfire-sdk alone if you don't need the CLI. New Snowflake integration and console script support in logfire run.
Logfire 6.0.0b3 is out. We've separated the SDK and CLI into distinct packages for better modularity—install logfire-sdk independently if the CLI isn't needed. This week also brought instrument_snowflake() for Snowflake connector instrumentation, fastmcp 4 support, and console script execution in logfire run. Documentation improvements streamline setup with CLI-first guidance.