Jeremiah Lowin a04f6fd911 Add telemetry off-switch and mcp.protocol.version span attribute (#4481) ... * Turn OpenTelemetry instrumentation on by default with explicit off-switch Add FASTMCP_ENABLE_TELEMETRY setting (default true) and mcp.protocol.version span attribute for SDK parity. * Make disabled telemetry a transparent pass-through, not a NoOpTracer The stock NoOpTracer.start_as_current_span attaches a NonRecordingSpan, hijacking the current OTel context from any enclosing application span. When telemetry is disabled, get_tracer() now returns a non-attaching pass-through tracer so trace.get_current_span() inside handlers still resolves to the caller's span.		2026-07-17 17:02:48 -04:00
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v3-notes	Remove deprecated fastmcp.server.apps / server.app shims (3.2)	2026-07-07 07:53:10 -04:00
v4-notes	Add telemetry off-switch and mcp.protocol.version span attribute (#4481)	2026-07-17 17:02:48 -04:00
contributing.mdx	Normalize repo references to PrefectHQ/fastmcp casing (#3218)	2026-02-18 14:51:18 -05:00
releases.mdx	Migrate to MCP Python SDK v2 (#4437)	2026-07-06 17:36:45 -04:00
tests.mdx	Migrate to MCP Python SDK v2 (#4437)	2026-07-06 17:36:45 -04:00