mcp/v3.0.0 v4.13.5
snarktank/ralphAug 26, 2026 → Aug 26, 20260 days between releases
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Analyzing what changed between mcp/v3.0.0 and v4.13.5. This page updates automatically — usually within a minute.
The Two Releases
mcp/v3.0.0
mcp/v3.0.0
Aug 26, 2026· 2 months ago
A significant SDK release that expands multi-language support to eleven languages, generated from an updated specification that now matches the clients and API.
Full release notesv4.13.5
v4.13.5
Aug 26, 2026· 2 months ago
Security release addressing cache key parsing issues, Static Site Generation path containment, and memory exhaustion risks in body parsing.
Full release notes