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@jlowin jlowin commented Nov 1, 2025

Removes the deprecated dependencies parameter from FastMCP constructor that was deprecated in v2.11.4. Users should now use fastmcp.json configuration files instead.

Changes:

  • Removed dependencies parameter from FastMCP.__init__
  • Removed deprecation warnings and related code in CLI
  • Deleted deprecated test file
  • Updated examples to use fastmcp.json and uv script notation for dependencies

Closes #2177

@marvin-context-protocol marvin-context-protocol bot added enhancement Improvement to existing functionality. For issues and smaller PR improvements. breaking change Breaks backward compatibility. Requires minor version bump. Critical for maintainer attention. server Related to FastMCP server implementation or server-side functionality. fastmcp.json Functionality related to fastmcp.json or FastMCPConfig files. cli Related to FastMCP CLI commands (run, dev, install) or CLI functionality. labels Nov 1, 2025
@jlowin jlowin merged commit 1c885c4 into 2-14-deprecations Nov 1, 2025
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@jlowin jlowin deleted the fix-2177-remove-deps branch November 1, 2025 19:48
jlowin added a commit that referenced this pull request Dec 1, 2025
* Initialize 2.14 deprecation removal branch

* Remove deprecated FASTMCP_SERVER_ environment variable prefix (#2330)

* Remove deprecated Context.get_http_request method (#2332)

* Remove fastmcp.Image top-level import (deprecated 2.8.1) (#2334)

* Remove test warnings (#2331)

* Create new branch and fix issue

* Remove deprecated client parameter from FastMCPProxy (#2333)

* Remove deprecated run_streamable_http_async method (#2338)

* Remove deprecated sse_app method (#2337)

* Remove deprecated run_sse_async method (#2335)

* Remove deprecated run_sse_async method

* Update CLI and tests to use run_http_async(transport="sse")

- Change CLI to call run_http_async with transport="sse" instead of run_sse_async
- Update test to mock run_http_async with create=True for v1 servers

* Revert CLI changes - v1 servers do have run_sse_async

- Keep CLI calling run_sse_async() for v1 compatibility
- Update test to mock run_sse_async (which exists on v1)

* Remove unnecessary type ignore for run_sse_async

Method exists on v1 FastMCP class, no type error

* Remove unused imports after test deletion

* Remove deprecated streamable_http_app method (#2336)

* Remove deprecated dependencies parameter from FastMCP constructor (#2340)

* Remove output_schema=False support (deprecated 2.11.4) (#2339)

* Remove deprecated client parameter from FastMCPProxy (#2333)

* Delete deprecated test_output_schema_false.py

Tests functionality that has been removed

* Remove deprecated BearerAuthProvider module (#2341)

* Remove resource_prefix_format="protocol" support (deprecated 2.4.0) (#2342)

* Remove resource_prefix_format="protocol" support (fixes #2195)

Removes deprecated protocol format (prefix+resource://path) and keeps only
path format (resource://prefix/path). Since only one format remains:

- Removed resource_prefix_format from settings, FastMCP.__init__, and helpers
- Simplified add_resource_prefix, remove_resource_prefix, has_resource_prefix
- Removed MountedServer.resource_prefix_format field
- Deleted tests for protocol format

All resource prefixes now use path format exclusively.

* Clean up resource_prefix_format references

- Remove from test files
- Update documentation to remove protocol format section
- Move custom HTTP routes note to mounting section
- Remove resource_prefix_format from settings docs

* Use inline version note instead of badge for prefix format

* Remove obsolete test functions and update docs

- Delete test functions that no longer assert anything
- Remove proxy.mdx reference to deleted prefix format section

* Format error messages per ruff

* Remove from_client classmethod (deprecated 2.8.0) (#2343)

* Remove deprecated from_client classmethod (fixes #2192)

* Remove unused Client import

* Remove add_resource_fn method (deprecated 2.7.0) (#2345)

* Update SDK

* Add missing imports for exclude_args deprecation warning
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Labels

breaking change Breaks backward compatibility. Requires minor version bump. Critical for maintainer attention. cli Related to FastMCP CLI commands (run, dev, install) or CLI functionality. enhancement Improvement to existing functionality. For issues and smaller PR improvements. fastmcp.json Functionality related to fastmcp.json or FastMCPConfig files. server Related to FastMCP server implementation or server-side functionality.

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