2.2.0-M3

Issues

• Add Primitive repository APIs (ResourceRepository, ToolsRepository, ... )

  enhancementfeature/repositoriesP3
  Enhancement

  modelcontextprotocol/java-sdk#578 · Filter by author sdelamo opened on Sep 26, 2025 · 2.2.0-M3
  20

• SEP-2243: HTTP Header Standardization for Streamable HTTP Transport

  area/serverarea/transportenhancementP1
  Enhancement

  modelcontextprotocol/java-sdk#990 · Filter by author caomengxuan666 opened on May 29, 2026 · 2.2.0-M3
  3

• SEP-1865: MCP Apps - Interactive User Interfaces for MCP

  enhancementextensionsP2
  modelcontextprotocol/java-sdk#999 · Filter by author localden opened on Jun 6, 2026 · 2.2.0-M3
  1

• SEP-2106: Tools inputSchema & outputSchema Conform to JSON Schema 2020-12

  enhancement
  modelcontextprotocol/java-sdk#1000 · Filter by author localden opened on Jun 6, 2026 · 2.2.0-M3
  1

• SEP-2260: Require Server requests to be associated with a Client request

  area/clientenhancementP1
  Enhancement

  modelcontextprotocol/java-sdk#1003 · Filter by author localden opened on Jun 6, 2026 · 2.2.0-M3
  1

• SEP-2468: Recommend Issuer (iss) Parameter in MCP Auth Responses

  area/authorizationenhancementP1ready for work
  Enhancement

  modelcontextprotocol/java-sdk#1008 · Filter by author localden opened on Jun 6, 2026 · 2.2.0-M3
  1

  

• SEP-2164: Standardize resource not found error code (-32602)

  area/serverenhancementP1ready for work
  Enhancement

  modelcontextprotocol/java-sdk#1001 · Filter by author localden opened on Jun 6, 2026 · 2.2.0-M3
  

• SEP-2322: Multi Round-Trip Requests

  area/mcp-schemaarea/transportenhancementP1
  Enhancement

  modelcontextprotocol/java-sdk#1004 · Filter by author localden opened on Jun 6, 2026 · 2.2.0-M3
  1

• SEP-2352: Clarify authorization server binding and migration

  area/authorizationenhancementP1ready for work
  Enhancement

  modelcontextprotocol/java-sdk#1007 · Filter by author localden opened on Jun 6, 2026 · 2.2.0-M3
  1

• SEP-2549: TTL for List Results

  area/mcp-schemaenhancementP1ready for work
  Enhancement

  modelcontextprotocol/java-sdk#1009 · Filter by author localden opened on Jun 6, 2026 · 2.2.0-M3
  1

• SEP-2567: Sessionless MCP via Explicit State Handles

  area/transportenhancementP1
  Enhancement

  modelcontextprotocol/java-sdk#1010 · Filter by author localden opened on Jun 6, 2026 · 2.2.0-M3

• SEP-2577: Deprecate Roots, Sampling, and Logging

  area/clientarea/serverenhancementP1ready for work
  Enhancement

  modelcontextprotocol/java-sdk#1012 · Filter by author localden opened on Jun 6, 2026 · 2.2.0-M3

• SEP-2575: Make MCP Stateless

  area/transportenhancementP1
  Enhancement

  modelcontextprotocol/java-sdk#1011 · Filter by author localden opened on Jun 6, 2026 · 2.2.0-M3
  11

• SEP-2663: Tasks Extension

  enhancementextensionsP2
  Enhancement

  modelcontextprotocol/java-sdk#1013 · Filter by author localden opened on Jun 6, 2026 · 2.2.0-M3
  5

• feat(mcp-core): support Mcp-Name header for Streamable HTTP (SEP-2243)

  area/clientarea/serverenhancement
  Unread
  modelcontextprotocol/java-sdk#994·cooleditphoto opened Jun 3, 2026 · Updated Nov 2, 2026
  3

  

• Simplify registering tools, resources and prompts on the modern server

  area/serverenhancementP1
  Enhancement

  modelcontextprotocol/java-sdk#1200 · Filter by author Kehrlann opened on Oct 20, 2026 · 2.2.0-M3
  1

  

• Validate x-mcp-header in tool input schema

  area/serverenhancementmodernP2
  Enhancement

  modelcontextprotocol/java-sdk#1269 · Filter by author Kehrlann opened on Oct 23, 2026 · 2.2.0-M3
  2

• fix: standardize resource not found error code

  area/serverdo not mergeP1
  Unread
  modelcontextprotocol/java-sdk#1037·CrypticCortex opened Jun 24, 2026 · Updated Nov 2, 2026
  3

  

• Name the supported protocol versions when rejecting a legacy initialize

  area/serverenhancementP2
  Enhancement

  modelcontextprotocol/java-sdk#1195 · Filter by author chemicL opened on Oct 20, 2026 · 2.2.0-M3
  1

• Reject subscriptions/listen without notifications

  area/serverbugP2
  Bug

  modelcontextprotocol/java-sdk#1196 · Filter by author chemicL opened on Oct 20, 2026 · 2.2.0-M3
  1

• Support dual-era servers (legacy + 2026-07-28 on the same endpoint)

  area/serverenhancementP2
  Enhancement

  modelcontextprotocol/java-sdk#1203 · Filter by author Kehrlann opened on Oct 20, 2026 · 2.2.0-M3
  1

• Allow injecting a notifier factory for notification filtering and checks

  area/serverenhancementP2
  Enhancement

  modelcontextprotocol/java-sdk#1197 · Filter by author chemicL opened on Oct 20, 2026 · 2.2.0-M3

• Docs: document the new io.modelcontextprotocol.modern stateless server package

  area/serverdocumentationmodernP1
  Enhancement

  modelcontextprotocol/java-sdk#1273 · Filter by author BhagyashriT opened on Oct 24, 2026 · 2.2.0-M3
  2

• Authorize resourceSubscriptions on subscriptions/listen

  area/servermodernP1
  Enhancement

  modelcontextprotocol/java-sdk#1307 · Filter by author Kehrlann opened on Nov 2, 2026 · 2.2.0-M3
  1

  

• Let prompts and resource templates define their own completions

  area/serverenhancementP2
  Enhancement

  modelcontextprotocol/java-sdk#1312 · Filter by author chemicL opened on Nov 3, 2026 · 2.2.0-M3