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[Schema][Server] Add MCP Apps extension (io.modelcontextprotocol/ui) support

improves spec complianceImproves consistency with other SDKs such as TyepScriptImproves consistency with other SDKs such as TyepScript

SchemaIssues & PRs related to the Schema componentIssues & PRs related to the Schema component

ServerIssues & PRs related to the Server componentIssues & PRs related to the Server component

Status: Open (in progress).

modelcontextprotocol/php-sdknumber 281

#281 In modelcontextprotocol/php-sdk;

· chr-hertel opened on Apr 11, 2026

[Server] Allow runtime-resolved element handlers

enhancementRequest for a new feature that's not currently supportedRequest for a new feature that's not currently supported

needs more workNot ready to be merged yet, needs additional follow-up from the author(s).Not ready to be merged yet, needs additional follow-up from the author(s).

ServerIssues & PRs related to the Server componentIssues & PRs related to the Server component

Status: Open (in progress).

modelcontextprotocol/php-sdknumber 294

#294 In modelcontextprotocol/php-sdk;

· e0ipso opened on Apr 29, 2026

[Server] Compose StreamableHttpTransport security middleware via defaultMiddleware() factory

improves spec complianceImproves consistency with other SDKs such as TyepScriptImproves consistency with other SDKs such as TyepScript

ServerIssues & PRs related to the Server componentIssues & PRs related to the Server component

Status: Open (in progress).

modelcontextprotocol/php-sdknumber 307

#307 In modelcontextprotocol/php-sdk;

· sveneld opened on May 13, 2026

Document v0.6.0 changes in CHANGELOG and docs

documentationImprovements or additions to documentationImprovements or additions to documentation

Status: Open (in progress).

modelcontextprotocol/php-sdknumber 311

#311 In modelcontextprotocol/php-sdk;

· chr-hertel opened on May 17, 2026

[Conformance] Fix conformance score calculcation

Status: Open (in progress).

modelcontextprotocol/php-sdknumber 313

#313 In modelcontextprotocol/php-sdk;

· chr-hertel opened on May 18, 2026