feat: expand InitializationState with explicit lifecycle state machine#1

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dgenio wants to merge 137 commits intomainfrom

feat/session-lifecycle-state-machine

Commits on Dec 1, 2025

Add on_session_created callback option (#1710)
crondinini-ant
authored

Commits on Dec 3, 2025

fix: add lifespan context manager to StreamableHTTP mounting examples (#1669)

authored

Commits on Dec 4, 2025

fix: handle ClosedResourceError in StreamableHTTP message router (#1384)

authored
fix: skip priming events and close_sse_stream for old protocol versions (#1719)
felixweinberger
authored

Commits on Dec 8, 2025

refactor(auth): remove unused _register_client method (#1748)
maxisbey
authored

Commits on Dec 10, 2025

Commits on Dec 12, 2025

fix: use correct python command name in test_stdio.py (#1782)
WOnder93
authored

Commits on Dec 15, 2025

Fix for Url Elicitation issue 1768 (#1780)
gopitk
authored

Commits on Dec 18, 2025

ci: add v1.x branch to main-checks workflow (#1802)
maxisbey
authored

Commits on Dec 31, 2025

fix: return HTTP 404 for unknown session IDs instead of 400 (#1808)

max-rousseau
and
maxisbey
authored

Commits on Jan 1, 2026

docs: add guidance on discussing features before opening PRs (#1760)
maxisbey
authored

Commits on Jan 5, 2026

Commits on Jan 7, 2026

Commits on Jan 8, 2026

docs: fix simple-auth README references to non-existent scripts (#1829)
maxisbey
authored

Commits on Jan 12, 2026

Support for Resource and ResourceTemplate metadata (#1840)

yannj-fr
and
ElwaarJacem
authored

Commits on Jan 15, 2026

Commits on Jan 16, 2026

Commits on Jan 17, 2026

refactor: use Client class in tests (#1900)
felixweinberger
authored

Commits on Jan 20, 2026

refactor: flatten the methods in `Client` (#1914)
Kludex
authored

Commits on Jan 23, 2026

Commits on Jan 24, 2026

Commits on Jan 25, 2026

Rename `FastMCP` to `MCPServer` (#1951)
Kludex
authored

Commits on Jan 26, 2026

Commits on Jan 27, 2026

Commits on Jan 29, 2026

fix: revert README to v1.x documentation on main (#1971)

maxisbey
and
Kludex
authored

Commits on Jan 30, 2026

Support different transports in Client (#1972)
Kludex
authored

Commits on Feb 1, 2026

chore(deps): bump the github-actions group with 5 updates (#1981)
dependabot[bot]
authored

Commits on Feb 4, 2026

chore: update author metadata to LF Projects (#1992)
maxisbey
authored

Commits on Feb 6, 2026

chore(deps): bump the uv group across 1 directory with 2 updates (#1961)
dependabot[bot]
authored

Commits on Feb 7, 2026

Commits on Feb 9, 2026

Commits on Feb 12, 2026

Commits on Feb 13, 2026

Commits on Feb 14, 2026

fix: handle HTTP error status codes in streamable HTTP client (#2047)
Kludex
authored

Commits on Feb 17, 2026

Commits on Feb 19, 2026