chore(deps): update dependency @modelcontextprotocol/sdk to v1.25.3

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@modelcontextprotocol/sdk (source)	1.23.0 → 1.25.3

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Release Notes

modelcontextprotocol/typescript-sdk (@​modelcontextprotocol/sdk)

v1.25.3

Compare Source

What's Changed

• [v1.x backport] Use correct schema for client sampling validation when tools are present by @​olaservo in #​1407
• fix: prevent Hono from overriding global Response object (v1.x) by @​mattzcarey in #​1411

Full Changelog: modelcontextprotocol/typescript-sdk@v1.25.2...v1.25.3

v1.25.2

Compare Source

What's Changed

• ci: trigger workflow on v1.x branch by @​felixweinberger in #​1319
• fix: README badges links destinations by @​antonpk1 in #​907
• fix: prevent ReDoS in UriTemplate regex patterns (v1.x backport) by @​pcarleton in #​1365

New Contributors

• @​antonpk1 made their first contribution in #​907

Full Changelog: modelcontextprotocol/typescript-sdk@1.25.1...v1.25.2

v1.25.1

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What's Changed

• spec types - backwards compatibility changes by @​KKonstantinov in #​1306
• chore: bump version for patch fix by @​felixweinberger in #​1307

Full Changelog: modelcontextprotocol/typescript-sdk@1.25.0...1.25.1

v1.25.0

Compare Source

What's Changed

• list changed handlers on client constructor by @​mattzcarey in #​1206
• Role - moved from inline to reusable type by @​KKonstantinov in #​1221
• fix: use versioned npm tag for non-main branch releases by @​pcarleton in #​1236
• No automatic completion support unless needed - Revisited yet again by @​cliffhall in #​1237
• fix: Support updating output schema by @​vincent0426 in #​1048
• Remove type dependency on @​cfworker/json-schema by @​LucaButBoring in #​1229
• Relocate tests under /test by @​KKonstantinov in #​1220
• Fix tsconfig: remove tests by @​KKonstantinov in #​1240
• tsconfig - tests and build fix by @​KKonstantinov in #​1243
• fix a typo in examples README by @​DaleSeo in #​1246
• Protocol date validation by @​mattzcarey in #​1247
• Flaky test fix on Types.test.ts by @​KKonstantinov in #​1244
• SPEC COMPLIANCE: Remove loose/passthrough types not allowed/defined by MCP spec + Task types by @​KKonstantinov in #​1242
• Follow-up fixes for PR #​1242 by @​felixweinberger in #​1274
• Update server examples and docs by @​DaleSeo in #​1285
• Update TypeScript config to ES2020 to fix AJV imports by @​mattzcarey in #​1297
• Fix Zod v4 schema description extraction by @​felixweinberger in #​1296
• Add optional description field to Implementation schema by @​calclavia in #​1295
• Add theme property to Icon schema by @​DaleSeo in #​1290
• feat: fetch transport by @​mattzcarey in #​1209
• chore: bump version for release by @​felixweinberger in #​1301

New Contributors

• @​vincent0426 made their first contribution in #​1048

Full Changelog: modelcontextprotocol/typescript-sdk@1.24.3...1.25.0

v1.24.3

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What's Changed

• chore: fix dev dependency security vulnerabilities by @​felixweinberger in #​1227
• chore(deps): bump express from 5.0.1 to 5.2.1 in the npm_and_yarn group across 1 directory by @​dependabot[bot] in #​1228
• fix: release HTTP connections after POST responses by @​mattzcarey in #​1214
• fix: skip priming events and closeSSEStream for old protocol versions by @​felixweinberger in #​1233
• chore: bump version for patch release by @​felixweinberger in #​1235

Full Changelog: modelcontextprotocol/typescript-sdk@1.24.2...1.24.3

v1.24.2

Compare Source

What's Changed

• feat: add optional resource annotations by @​vhorvath2010 in #​954
• chore: refresh CLAUDE.md by @​LucaButBoring in #​1217
• refactor: make Server class framework-agnostic by moving express to separate module by @​cytle in #​1223
• chore: bump version to 1.24.2 by @​pcarleton in #​1224

New Contributors

• @​vhorvath2010 made their first contribution in #​954
• @​cytle made their first contribution in #​1223

Full Changelog: modelcontextprotocol/typescript-sdk@1.24.1...1.24.2

v1.24.1

Compare Source

What's Changed

• fix(streamableHttp): fix infinite retries when maxRetries is set to 0 by @​mrorigo in #​1216
• chore: update protocol version to 2025-11-25 by @​dsp-ant in #​1218
• chore: bump version for release by @​felixweinberger in #​1219

New Contributors

• @​mrorigo made their first contribution in #​1216

Full Changelog: modelcontextprotocol/typescript-sdk@1.24.0...1.24.1

v1.24.0

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Summary

This release brings us up to speed with the latest MCP spec 2025-11-25. Take a look at the latest spec as well as the release blog post.

What's Changed

• fix: update spec links from latest to draft by @​domdomegg in #​1171
• Make sure to consume HTTP error response bodies by @​GreenStage in #​1173
• docs: add GET request handling for streamableHttp stateless mode by @​saharis9988 in #​1161
• SEP-1686: Tasks by @​LucaButBoring in #​1041
• Fix JSON parse error on SSE events with empty data by @​felixweinberger in #​1184
• Fix StreamableHTTPClientTransport instantiation by @​yuwzho in #​944
• feat: eslint rule to prefer node protocols by @​mattzcarey in #​1187
• fix: call tasks/result to deliver side-channel messages by @​felixweinberger in #​1185
• Add invalid_target oauth error (rfc 8707) by @​GreenStage in #​1183
• fix(client): use StreamableHTTPError instead of plain Error in send() by @​yamadashy in #​1178
• coerce 'expires_in' to be a number by @​adam-kuhn in #​1111
• Allow HTTP issuer URLs when MCP_DEV_MODE is enabled by @​jerome3o-anthropic in #​1189
• fix: update registerTool signature for proper typed ToolCallback by @​mattzcarey in #​1188
• SEP-1046: Client credentials flow for M2M without user interaction by @​KKonstantinov in #​1157
• adds the transitive @​types/express-serve-static-core dependency as a direct devDependency by @​mgyarmathy in #​1078
• Fix optional argument handling in prompts for Zod V4 by @​filip-bartuska-ipf in #​1199
• fix hanging stdio servers by @​mattzcarey in #​1200
• README refactor by @​KKonstantinov in #​1197
• [Docs] Fix typo by @​koic in #​1067
• feat: add closeSSEStream callback to RequestHandlerExtra by @​felixweinberger in #​1166
• fix: improve SSE reconnection behavior by @​felixweinberger in #​1191
• fix: normalize headers in sse transport by @​marcrasi in #​856
• feat: add closeStandaloneSSEStream for GET stream polling by @​felixweinberger in #​1203
• fix: normalize null to undefined in ElicitResultSchema content field by @​mattzcarey in #​1204
• Modify Origin header validation in validateRequestHeaders (streamableHttp.ts and sse.ts) to allow requests without an Origin, as they are not relevant to server DNS rebinding protection. by @​jacopoc in #​1205
• fix: allow zod 4 transformations by @​mattzcarey in #​1213
• feat: backwards-compatible createMessage overloads for SEP-1577 by @​felixweinberger in #​1212
• chore: bump version for release by @​felixweinberger in #​1215

New Contributors

• @​GreenStage made their first contribution in #​1173
• @​saharis9988 made their first contribution in #​1161
• @​yuwzho made their first contribution in #​944
• @​yamadashy made their first contribution in #​1178
• @​adam-kuhn made their first contribution in #​1111
• @​mgyarmathy made their first contribution in #​1078
• @​filip-bartuska-ipf made their first contribution in #​1199
• @​koic made their first contribution in #​1067
• @​marcrasi made their first contribution in #​856
• @​jacopoc made their first contribution in #​1205

Full Changelog: modelcontextprotocol/typescript-sdk@1.23.0...1.24.0

v1.23.1

Compare Source

Fixed:

• Disabled SSE priming events to fix backwards compatibility - 1.23.x clients crash on empty SSE data (JSON.parse(""))

This is a patch for servers still on 1.23.x that were breaking clients not handling the the 2025-11-25 priming event behavior with empty SSE data fields. See #​1233 for more details.

Full Changelog: modelcontextprotocol/typescript-sdk@1.23.0...1.23.1

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