Issues

• [Client][Server] Ship extension classes for the two authorization extensions

  authClientServer
  modelcontextprotocol/php-sdk#721 · Filter by author chr-hertel opened on Nov 10, 2026
  

• [Client] Test cross-app access against a real identity provider

  authClient
  modelcontextprotocol/php-sdk#720 · Filter by author chr-hertel opened on Nov 10, 2026
  

• [Server] Stdio session expires after an hour of silence

  modelcontextprotocol/php-sdk#672 · Filter by author dg opened on Nov 5, 2026

• [Capability] Describe nullable parameters with anyOf instead of a type array?

  modelcontextprotocol/php-sdk#631 · Filter by author nicolas-grekas opened on Oct 27, 2026
  2

• [Server][Capability] Element sources should return values, and RegistryInterface should be sliced by role

  ADRbreaking changeneeds designServer
  modelcontextprotocol/php-sdk#495 · Filter by author chr-hertel opened on Sep 3, 2026
  1

• Slicing the SDK into Multiple Packages

  needs confirmationneeds maintainer action
  modelcontextprotocol/php-sdk#489 · Filter by author chr-hertel opened on Aug 29, 2026 · 1.0.0
  4

  

• One placeholder-less resource template makes the whole server unserviceable

  Server
  modelcontextprotocol/php-sdk#476 · Filter by author wachterjohannes opened on Aug 23, 2026
  3

• [Server] Handler type uses bare Closure, hard to decorate RegistryInterface under strict PHPStan

  Server
  modelcontextprotocol/php-sdk#468 · Filter by author shahinataei-ts opened on Aug 20, 2026
  3

• [Conformance] SEP-2484: Wire SEP traceability files into conformance test runner; surface per-SEP pass rates

  2026-07-28enhancementimproves spec compliance
  modelcontextprotocol/php-sdk#367 · Filter by author chr-hertel opened on May 26, 2026

• [Schema] SEP-2106: Harden SchemaValidator against external $ref SSRF and composition DoS

  2026-07-28enhancementimproves spec complianceSchema
  modelcontextprotocol/php-sdk#358 · Filter by author chr-hertel opened on May 26, 2026

• [Schema] SEP-2106: Support JSON Schema 2020-12 vocabulary in SchemaGenerator (oneOf/anyOf/allOf/if-then-else/$ref)

  2026-07-28enhancementimproves spec complianceneeds designSchema
  modelcontextprotocol/php-sdk#356 · Filter by author chr-hertel opened on May 26, 2026

• [Client] SEP-2663 Tasks: Poll task handles and answer inputRequests

  2026-07-28enhancementimproves spec complianceServer
  modelcontextprotocol/php-sdk#349 · Filter by author chr-hertel opened on May 26, 2026

• [Server] SEP-2663 Tasks: Handlers return task handles; the application advances the task

  2026-07-28enhancementimproves spec complianceneeds designServer
  modelcontextprotocol/php-sdk#348 · Filter by author chr-hertel opened on May 26, 2026

• [Server] SEP-2663 Tasks: TaskStoreInterface with InMemory and PSR-16 stores

  2026-07-28enhancementimproves spec complianceneeds designServer
  modelcontextprotocol/php-sdk#347 · Filter by author chr-hertel opened on May 26, 2026

• [Server] SEP-2663 Tasks: TasksExtension, capability gate, tasks/* handlers

  2026-07-28enhancementimproves spec complianceneeds designServer
  modelcontextprotocol/php-sdk#346 · Filter by author chr-hertel opened on May 26, 2026

• [Schema] SEP-2663 Tasks: Task shape, resultType discriminator, tasks/* request/result types

  2026-07-28enhancementimproves spec complianceSchema
  modelcontextprotocol/php-sdk#345 · Filter by author chr-hertel opened on May 26, 2026

• [2026-07-28] Governance: deprecations, lifecycle, conformance, SDK tier

  2026-07-28Clientdocumentationenhancementimproves spec complianceServer
  modelcontextprotocol/php-sdk#339 · Filter by author chr-hertel opened on May 26, 2026

• [2026-07-28] Schema modernization & error code standardization

  2026-07-28enhancementimproves spec complianceSchema
  modelcontextprotocol/php-sdk#337 · Filter by author chr-hertel opened on May 26, 2026

• [2026-07-28] Extensions framework + Tasks + MCP Apps

  2026-07-28Clientenhancementimproves spec complianceneeds designSchemaServer
  modelcontextprotocol/php-sdk#335 · Filter by author chr-hertel opened on May 26, 2026

• Streamable HTTP server does not validate body/header protocol-version consistency on initialize

  bug
  modelcontextprotocol/php-sdk#309 · Filter by author cclabadmin opened on May 16, 2026
  1

• [Streamable HTTP][Server] GET should open a server→client SSE listener

  bug
  modelcontextprotocol/php-sdk#291 · Filter by author Chi-teck opened on Apr 20, 2026
  1

• Add server lifecycle events (ServerStarted / ServerStopped)

  enhancementneeds confirmation
  modelcontextprotocol/php-sdk#286 · Filter by author Chi-teck opened on Apr 16, 2026
  2

• [Schema][SEP-1319] Decouple Request Payload from RPC Methods Definition

  Schema
  modelcontextprotocol/php-sdk#138 · Filter by author chr-hertel opened on Nov 7, 2025 · 1.0.0

• Proposal: Schema Generation Separation from Core SDK

  needs confirmation
  modelcontextprotocol/php-sdk#45 · Filter by author butschster opened on Sep 7, 2025
  3

• Proposal: Extract Discovery module from core SDK for better modularity

  needs confirmation
  modelcontextprotocol/php-sdk#44 · Filter by author butschster opened on Sep 7, 2025
  4