v1.20.0

What's Changed

• Relax Accept header requirement for JSON-only responses by @domdomegg in #1500
• fix: replace deprecated dev-dependencies in examples/clients by @yukuanj in #1518
• fix: Update spec links to new modelcontextprotocol.io location by @maxisbey in #1491
• fix: Replace fixed sleep with active server readiness check in SSE tests by @maxisbey in #1526
• fix: Replace arbitrary sleeps with active server readiness checks in tests by @maxisbey in #1527
• Fix flaky timeout test in test_88_random_error by @maxisbey in #1525
• fix: Replace remaining manual server polling with wait_for_server helper by @maxisbey in #1529
• Implement RFC 7523 JWT flows by @LucaButBoring in #1247
• Fix pyright error and replace wildcard import with explicit imports by @maxisbey in #1532
• Fix auth client example URL handling for oauth provider by @pcarleton in #1549

New Contributors

• @domdomegg made their first contribution in #1500
• @pcarleton made their first contribution in #1549

Full Changelog: v1.19.0...v1.20.0