libgopher-mcp v0.1.19

Build Information

Field	Value
Version	0.1.19
Date	2026-10-30 08:05:31 UTC
Commit	cf70ffc
Branch	br_release
Build Type	Release

Platforms

• Linux: x64, ARM64
• Windows: x64, ARM64
• macOS: x64, ARM64

What's Changed

Added

• Structured tool output with outputSchema and structuredContent, adapted
  to the caller's protocol revision with text fallback for older clients (#293).
• Configurable pagination for tools, prompts, resources and resource templates,
  using signed cursors bound to the issuing list and server; client support for
  resources/templates/list (#307, #308).
• Form and URL elicitation, including typed fields, single-choice and
  multi-select schemas (#291, #318).
• Client and server completion APIs for prompt and resource-template arguments
  through completion/complete (#320).
• Tasks extension for long-running tools, with caller-owned tasks, polling,
  input requests, cancellation, expiry and task subscriptions (#327).
• Cancellable client requests, enforced request timeouts, progress callbacks
  and server-side cancellation signals for deferred work (#321).
• Configurable ttlMs and cacheScope hints on cacheable results, plus server
  identity in result metadata for 2026-07-28 callers (#290, #316).
• Titles, icons, tool behaviour hints, annotations and nested _meta across
  protocol types, with client and server display metadata (#295, #305, #319).
• Extension capability negotiation and W3C trace context propagation, with
  request span hooks on the client and server (#314, #323).
• Tool, prompt and resource list-change notifications, including registration
  and removal updates when the capability is enabled (#322).
• Official 2026-07-28 schema conformance fixtures and bidirectional Python SDK
  interoperability suites integrated into make test-interop (#294, #312, #329).

Changed

• Clients now offer 2025-11-25 during initialization, reject unsupported or newer
  handshake responses, and discover 2026-07-28 even with an explicitly selected
  Streamable HTTP transport (#296, #313).
• Advertise registered features and configured capabilities consistently in
  initialize and server/discover; unadvertised methods return method-not-found
  errors (#288, #314).
• Align source license headers and SDK package declarations with Apache-2.0.

Fixed

• Preserve nested JSON, exact tool and prompt arguments, request state and rich
  error data throughout client/server encoding and decoding (#283, #297).
• Correct initialization state, typed prompt listings, resource-link and
  embedded-resource wire shapes, and empty ping responses (#284, #285, #287,
  #299, #315).
• Return protocol errors for unknown tools and resources, and preserve JSON-RPC
  errors carried by HTTP error responses (#289, #297, #304).
• Fix SSE chunk framing, session headers and reconnect retry timing; prevent
  replies to server requests from blocking behind streaming responses (#286,
  #298, #311).
• Protect configured request state with caller-bound, expiring signatures and
  isolate in-flight requests by session and typed request ID (#309).
• Retry tool calls once after a header mismatch by refreshing all tool pages;
  keep completed or cancelled requests from being retried or sent (#321, #325).
• Scope listen streams to callers, preserve subscription tags and request
  metadata, and make stream routing and sends safe during cancellation.
• Keep sessions alive while streams are active and clean up retained streams
  on disconnect; fix reentrant connection teardown, callback lifetimes and
  bounded flush-close timeouts (#301, #302).