List view

fix: accept header accessor function in ServerTransportSecurityValidator

area/server

enhancementNew feature or requestNew feature or request

P2Moderate issues affecting some users, edge cases, potentially valuable featureModerate issues affecting some users, edge cases, potentially valuable feature

Status: Open (in progress).

modelcontextprotocol/java-sdknumber 982

#982 In modelcontextprotocol/java-sdk;

· neerajbhatt opened on May 24, 2026

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

enhancementNew feature or requestNew feature or request

feature/repositories

P3Nice to haves, rare edge casesNice to haves, rare edge cases

Status: Open.

Enhancement

#578 In modelcontextprotocol/java-sdk;

· sdelamo opened on Sep 26, 2025

SEP-2577: Deprecate Roots, Sampling, and Logging

area/client

area/server

enhancementNew feature or requestNew feature or request

P1Significant bug affecting many users, highly requested featureSignificant bug affecting many users, highly requested feature

ready for workThe goal is clear and work towards it can be commencedThe goal is clear and work towards it can be commenced

Status: Open.

Enhancement

#1012 In modelcontextprotocol/java-sdk;

· localden opened on Jun 6, 2026

SEP-2549: TTL for List Results

area/mcp-schema

enhancementNew feature or requestNew feature or request

P1Significant bug affecting many users, highly requested featureSignificant bug affecting many users, highly requested feature

ready for workThe goal is clear and work towards it can be commencedThe goal is clear and work towards it can be commenced

Status: Open.

Enhancement

#1009 In modelcontextprotocol/java-sdk;

· localden opened on Jun 6, 2026

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

area/server

enhancementNew feature or requestNew feature or request

P1Significant bug affecting many users, highly requested featureSignificant bug affecting many users, highly requested feature

ready for workThe goal is clear and work towards it can be commencedThe goal is clear and work towards it can be commenced

Status: Open.

Enhancement

#1001 In modelcontextprotocol/java-sdk;

· localden opened on Jun 6, 2026

SEP-2243: HTTP Header Standardization for Streamable HTTP Transport

area/server

area/transport

enhancementNew feature or requestNew feature or request

P1Significant bug affecting many users, highly requested featureSignificant bug affecting many users, highly requested feature

Status: Open.

Enhancement

#990 In modelcontextprotocol/java-sdk;

· caomengxuan666 opened on May 29, 2026

Server should handle paginated requests

area/server

enhancementNew feature or requestNew feature or request

P2Moderate issues affecting some users, edge cases, potentially valuable featureModerate issues affecting some users, edge cases, potentially valuable feature

Status: Open.

Enhancement

#967 In modelcontextprotocol/java-sdk;

· denniskawurek opened on May 17, 2026