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fix(streamableHttp): fix infinite retries when maxRetries is set to 0 #1216
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felixweinberger
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modelcontextprotocol:main
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mrorigo:issues/issue-1179-maxretries
Dec 2, 2025
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fix(streamableHttp): fix infinite retries when maxRetries is set to 0 #1216
felixweinberger
merged 3 commits into
modelcontextprotocol:main
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mrorigo:issues/issue-1179-maxretries
Dec 2, 2025
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felixweinberger
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Good find thanks
commit: |
Fix formatting issues that were causing CI to fail: - Correct indentation on `let transport` declaration - Remove trailing whitespace - Remove extra blank line
The previous test didn't properly exercise _scheduleReconnection. This improved test: - Directly tests _scheduleReconnection with maxRetries=0 - Verifies the "Maximum reconnection attempts (0) exceeded" error - Confirms no setTimeout is scheduled (no retry attempt) - Adds a companion test for maxRetries>0 to verify normal behavior
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Made some changes to the tests + fixed CI. |
MightyPrytanis
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 <h3>Snyk has created this PR to upgrade @modelcontextprotocol/sdk from 1.24.0 to 1.24.3.</h3> :information_source: Keep your dependencies up-to-date. This makes it easier to fix existing vulnerabilities and to more quickly identify and fix newly disclosed vulnerabilities when they affect your project. <hr/> - The recommended version is **3 versions** ahead of your current version. - The recommended version was released **a month ago**. <details> <summary><b>Release notes</b></summary> <br/> <details> <summary>Package name: <b>@modelcontextprotocol/sdk</b></summary> <ul> <li> <b>1.24.3</b> - <a href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/releases/tag/1.24.3">2025-12-04</a></br><h2>What's Changed</h2> <ul> <li>chore: fix dev dependency security vulnerabilities by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/felixweinberger/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/felixweinberger">@ felixweinberger</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3691198208" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1227" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1227/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1227">#1227</a></li> <li>chore(deps): bump express from 5.0.1 to 5.2.1 in the npm_and_yarn group across 1 directory by <a class="user-mention notranslate" data-hovercard-type="organization" data-hovercard-url="/orgs/dependabot/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/dependabot">@ dependabot</a>[bot] in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3691221872" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1228" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1228/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1228">#1228</a></li> <li>fix: release HTTP connections after POST responses by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/mattzcarey/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/mattzcarey">@ mattzcarey</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3685626979" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1214" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1214/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1214">#1214</a></li> <li>fix: skip priming events and closeSSEStream for old protocol versions by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/felixweinberger/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/felixweinberger">@ felixweinberger</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3694335007" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1233" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1233/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1233">#1233</a></li> <li>chore: bump version for patch release by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/felixweinberger/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/felixweinberger">@ felixweinberger</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3694887719" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1235" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1235/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1235">#1235</a></li> </ul> <p><strong>Full Changelog</strong>: <a class="commit-link" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/compare/1.24.2...1.24.3"><tt>1.24.2...1.24.3</tt></a></p> </li> <li> <b>1.24.2</b> - <a href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/releases/tag/1.24.2">2025-12-03</a></br><h2>What's Changed</h2> <ul> <li>feat: add optional resource annotations by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/vhorvath2010/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/vhorvath2010">@ vhorvath2010</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3436712736" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#954" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/954/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/954">#954</a></li> <li>chore: refresh CLAUDE.md by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/LucaButBoring/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/LucaButBoring">@ LucaButBoring</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3686867636" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1217" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1217/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1217">#1217</a></li> <li>refactor: make Server class framework-agnostic by moving express to separate module by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/cytle/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/cytle">@ cytle</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3689485567" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1223" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1223/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1223">#1223</a></li> <li>chore: bump version to 1.24.2 by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/pcarleton/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/pcarleton">@ pcarleton</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3689937597" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1224" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1224/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1224">#1224</a></li> </ul> <h2>New Contributors</h2> <ul> <li><a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/vhorvath2010/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/vhorvath2010">@ vhorvath2010</a> made their first contribution in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3436712736" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#954" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/954/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/954">#954</a></li> <li><a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/cytle/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/cytle">@ cytle</a> made their first contribution in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3689485567" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1223" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1223/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1223">#1223</a></li> </ul> <p><strong>Full Changelog</strong>: <a class="commit-link" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/compare/1.24.1...1.24.2"><tt>1.24.1...1.24.2</tt></a></p> </li> <li> <b>1.24.1</b> - <a href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/releases/tag/1.24.1">2025-12-02</a></br><h2>What's Changed</h2> <ul> <li>fix(streamableHttp): fix infinite retries when maxRetries is set to 0 by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/mrorigo/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/mrorigo">@ mrorigo</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3686035318" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1216" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1216/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1216">#1216</a></li> <li>chore: update protocol version to 2025-11-25 by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/dsp-ant/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/dsp-ant">@ dsp-ant</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3687018759" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1218" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1218/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1218">#1218</a></li> <li>chore: bump version for release by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/felixweinberger/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/felixweinberger">@ felixweinberger</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3687067916" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1219" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1219/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1219">#1219</a></li> </ul> <h2>New Contributors</h2> <ul> <li><a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/mrorigo/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/mrorigo">@ mrorigo</a> made their first contribution in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3686035318" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1216" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1216/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1216">#1216</a></li> </ul> <p><strong>Full Changelog</strong>: <a class="commit-link" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/compare/1.24.0...1.24.1"><tt>1.24.0...1.24.1</tt></a></p> </li> <li> <b>1.24.0</b> - <a href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/releases/tag/1.24.0">2025-12-02</a></br><h2>Summary</h2> <p>This release brings us up to speed with the latest MCP spec <code>2025-11-25</code>. Take a look at the <a href="https://modelcontextprotocol.io/specification/2025-11-25" rel="nofollow">latest spec</a> as well as the release <a href="https://blog.modelcontextprotocol.io/posts/2025-11-25-first-mcp-anniversary/" rel="nofollow">blog post.</a></p> <h2>What's Changed</h2> <ul> <li>fix: update spec links from latest to draft by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/domdomegg/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/domdomegg">@ domdomegg</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3664829218" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1171" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1171/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1171">#1171</a></li> <li>Make sure to consume HTTP error response bodies by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/GreenStage/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/GreenStage">@ GreenStage</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3666874622" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1173" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1173/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1173">#1173</a></li> <li>docs: add GET request handling for streamableHttp stateless mode by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/saharis9988/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/saharis9988">@ saharis9988</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3660259155" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1161" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1161/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1161">#1161</a></li> <li>SEP-1686: Tasks by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/LucaButBoring/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/LucaButBoring">@ LucaButBoring</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3546900542" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1041" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1041/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1041">#1041</a></li> <li>Fix JSON parse error on SSE events with empty data by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/felixweinberger/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/felixweinberger">@ felixweinberger</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3672860656" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1184" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1184/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1184">#1184</a></li> <li>Fix StreamableHTTPClientTransport instantiation by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/yuwzho/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/yuwzho">@ yuwzho</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3420595607" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#944" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/944/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/944">#944</a></li> <li>feat: eslint rule to prefer node protocols by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/mattzcarey/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/mattzcarey">@ mattzcarey</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3674518488" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1187" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1187/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1187">#1187</a></li> <li>fix: call tasks/result to deliver side-channel messages by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/felixweinberger/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/felixweinberger">@ felixweinberger</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3672896336" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1185" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1185/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1185">#1185</a></li> <li>Add invalid_target oauth error (rfc 8707) by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/GreenStage/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/GreenStage">@ GreenStage</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3672704149" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1183" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1183/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1183">#1183</a></li> <li>fix(client): use StreamableHTTPError instead of plain Error in send() by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/yamadashy/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/yamadashy">@ yamadashy</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3669612690" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1178" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1178/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1178">#1178</a></li> <li>coerce 'expires_in' to be a number by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/adam-kuhn/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/adam-kuhn">@ adam-kuhn</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3624481815" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1111" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1111/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1111">#1111</a></li> <li>Allow HTTP issuer URLs when MCP_DEV_MODE is enabled by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/jerome3o-anthropic/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/jerome3o-anthropic">@ jerome3o-anthropic</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3675262314" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1189" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1189/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1189">#1189</a></li> <li>fix: update registerTool signature for proper typed ToolCallback by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/mattzcarey/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/mattzcarey">@ mattzcarey</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3674832778" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1188" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1188/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1188">#1188</a></li> <li>SEP-1046: Client credentials flow for M2M without user interaction by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/KKonstantinov/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/KKonstantinov">@ KKonstantinov</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3655110317" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1157" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1157/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1157">#1157</a></li> <li>adds the transitive @ types/express-serve-static-core dependency as a direct devDependency by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/mgyarmathy/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/mgyarmathy">@ mgyarmathy</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3584050696" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1078" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1078/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1078">#1078</a></li> <li>Fix optional argument handling in prompts for Zod V4 by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/filip-bartuska-ipf/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/filip-bartuska-ipf">@ filip-bartuska-ipf</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3680574535" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1199" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1199/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1199">#1199</a></li> <li>fix hanging stdio servers by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/mattzcarey/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/mattzcarey">@ mattzcarey</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3680985762" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1200" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1200/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1200">#1200</a></li> <li>README refactor by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/KKonstantinov/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/KKonstantinov">@ KKonstantinov</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3679336733" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1197" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1197/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1197">#1197</a></li> <li>[Docs] Fix typo by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/koic/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/koic">@ koic</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3576912671" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1067" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1067/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1067">#1067</a></li> <li>feat: add closeSSEStream callback to RequestHandlerExtra by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/felixweinberger/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/felixweinberger">@ felixweinberger</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3663783141" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1166" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1166/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1166">#1166</a></li> <li>fix: improve SSE reconnection behavior by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/felixweinberger/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/felixweinberger">@ felixweinberger</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3675644114" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1191" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1191/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1191">#1191</a></li> <li>fix: normalize headers in sse transport by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/marcrasi/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/marcrasi">@ marcrasi</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3301818827" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#856" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/856/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/856">#856</a></li> <li>feat: add closeStandaloneSSEStream for GET stream polling by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/felixweinberger/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/felixweinberger">@ felixweinberger</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3681592788" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1203" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1203/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1203">#1203</a></li> <li>fix: normalize null to undefined in ElicitResultSchema content field by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/mattzcarey/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/mattzcarey">@ mattzcarey</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3681871133" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1204" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1204/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1204">#1204</a></li> <li>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 <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/jacopoc/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/jacopoc">@ jacopoc</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3682254908" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1205" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1205/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1205">#1205</a></li> <li>fix: allow zod 4 transformations by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/mattzcarey/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/mattzcarey">@ mattzcarey</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3685521543" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1213" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1213/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1213">#1213</a></li> <li>feat: backwards-compatible createMessage overloads for SEP-1577 by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/felixweinberger/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/felixweinberger">@ felixweinberger</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3685389937" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1212" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1212/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1212">#1212</a></li> <li>chore: bump version for release by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/felixweinberger/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/felixweinberger">@ felixweinberger</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3685838812" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1215" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1215/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1215">#1215</a></li> </ul> <h2>New Contributors</h2> <ul> <li><a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/GreenStage/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/GreenStage">@ GreenStage</a> made their first contribution in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3666874622" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1173" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1173/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1173">#1173</a></li> <li><a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/saharis9988/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/saharis9988">@ saharis9988</a> made their first contribution in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3660259155" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1161" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1161/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1161">#1161</a></li> <li><a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/yuwzho/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/yuwzho">@ yuwzho</a> made their first contribution in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3420595607" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#944" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/944/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/944">#944</a></li> <li><a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/yamadashy/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/yamadashy">@ yamadashy</a> made their first contribution in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3669612690" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1178" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1178/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1178">#1178</a></li> <li><a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/adam-kuhn/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/adam-kuhn">@ adam-kuhn</a> made their first contribution in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3624481815" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1111" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1111/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1111">#1111</a></li> <li><a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/mgyarmathy/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/mgyarmathy">@ mgyarmathy</a> made their first contribution in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3584050696" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1078" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1078/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1078">#1078</a></li> <li><a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/filip-bartuska-ipf/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/filip-bartuska-ipf">@ filip-bartuska-ipf</a> made their first contribution in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3680574535" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1199" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1199/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1199">#1199</a></li> <li><a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/koic/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/koic">@ koic</a> made their first contribution in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3576912671" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1067" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1067/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1067">#1067</a></li> <li><a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/marcrasi/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/marcrasi">@ marcrasi</a> made their first contribution in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3301818827" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#856" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/856/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/856">#856</a></li> <li><a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/jacopoc/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/jacopoc">@ jacopoc</a> made their first contribution in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="3682254908" data-permission-text="Title is private" data-url="modelcontextprotocol/typescript-sdk#1205" data-hovercard-type="pull_request" data-hovercard-url="/modelcontextprotocol/typescript-sdk/pull/1205/hovercard" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/pull/1205">#1205</a></li> </ul> <p><strong>Full Changelog</strong>: <a class="commit-link" href="https://redirect.github.com/modelcontextprotocol/typescript-sdk/compare/1.23.0...1.24.0"><tt>1.23.0...1.24.0</tt></a></p> </li> </ul> from <a 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closes #1179
Fixes invalid conditional check by removing
maxRetries > 0Motivation and Context
Incorrect logic
How Has This Been Tested?
test suite passes, 1 test added to verify change
Breaking Changes
No breaking changes
Types of changes
Checklist
Additional context