v4.16.0 v4.15.3
punkpeye/fastmcpAug 17, 2026 → Aug 17, 20260 days between releases
Generating AI comparison
Analyzing what changed between v4.16.0 and v4.15.3. This page updates automatically — usually within a minute.
The Two Releases
v4.16.0
v4.16.0
Aug 17, 2026· 2 months ago
Introduces support for cancellation and timeouts in tool execution by passing an AbortSignal to the execution context.
Full release notesv4.15.3
v4.15.3
Aug 17, 2026· 2 months ago
Ensures that session identifiers remain valid even if the underlying transport connection is terminated prematurely.
Full release notes