2.7.0
modelcontextprotocol/inspector2.7.0Sep 16, 2026by cliffhall
Upgrading?
AI Summary
Release 2.7.0 enhances the testing infrastructure with machine-wide leases, adds configurable timeouts for OAuth and connections, and introduces a launch flag for protocol eras.
Key Highlights
- Added `--protocol-era` launch flag for ad-hoc servers.
- Configurable OAuth path request deadlines.
- Machine-wide lease for concurrent local:gate runs.
- Bumped ext-apps to 2.0.0 and dropped SDK-v1 shims.
New Features
- Bound every OAuth-path request with a deadline.
- Bound connect attempts with a 30s default connectionTimeout.
- Configurable skills verification catalog budget per server.
- Configurable public addresses for the MCP Apps listeners.
- Report outstanding-request and notification-stream state on request timeout.
Full Release Notes
## What's Changed * chore: bump the vitest trio to 4.1.11 past GHSA-82fw-gwwq-j7x9 by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2315 * feat(test-servers): a CIMD showcase fixture that serves its own client metadata document by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2307 * chore: land the #2247 round-9 review findings on v2/main by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2322 * feat: bound every OAuth-path request with a deadline by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2324 * fix: bold the labels, not the values, and give Connection Info's URLs full width by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2329 * fix: exempt loopback hosts from the CIMD metadata URL HTTPS requirement by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2326 * fix: state every test-gate timeout instead of inheriting a library default by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2334 * fix: force the Storybook dep pre-bundle on every run (#2340) by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2342 * chore: run each client's test suite once in local:gate, not twice by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2343 * feat: queue concurrent local:gate runs on a machine-wide lease (#2339) by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2344 * docs: record why maxWorkers stays unset, with the measurement (#2336) by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2345 * chore: state the smoke-helper and CI wall-clock budgets (#2333) by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2349 * chore: remove gate-lease.test.mjs temp directories after the suite by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2351 * docs: stop justifying the asyncUtilTimeout pin by pointing at #2335 by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2352 * fix: sample the SkillsScreen geometry only once the Frontmatter highlighter has landed by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2353 * docs: correct two stale gate comments after #2354 (gate-lease MAX_WAIT_MS, main.yml table pointer) by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2357 * docs: bring quality-gate.md up to date after #2338 and document the gate lease by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2355 * chore(deps): bump ext-apps to 2.0.0 and drop the SDK-v1 shims by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2358 * chore: refresh the stale ext-apps example in the sdk-watch comments by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2361 * feat: bound connect attempts with a 30 s default connectionTimeout by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2362 * fix: reset relay request-response waits on progress notifications (#2028) by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2363 * docs: add an environment-variable reference by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2366 * feat(core): report outstanding-request and notification-stream state on a request timeout (#2318) by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2364 * fix: accept a path-less skill root URI in normalizeSkillUri by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2368 * feat: add --protocol-era launch flag for ad-hoc servers by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2372 * feat: make the skills verification catalog budget configurable per server (#2294) by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2367 * fix: record an intercepted 401's status, headers and body in the network log by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2371 * feat(web): configurable public addresses for the MCP Apps listeners by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2370 * fix: report a gate-lease wait only when the run actually queued by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2375 * Declare the skills extension in the Inspector's client capabilities by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2374 * chore(release): bump to 2.7.0, audit clean, and fix sdk-watch suppression by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2379 * feat(test-servers): stall an OAuth endpoint so #2319's timeouts can be driven by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2383 * fix(test): AppRenderer theme flip — happy-dom drops GC'd MutationObserver callbacks by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2386 * docs: pack:verify is not a local:gate stage — name it as its own release step by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2387 * chore(release): merge v2/main into main for v2.7.0 by @cliffhall in https://github.com/modelcontextprotocol/inspector/pull/2381 **Full Changelog**: https://github.com/modelcontextprotocol/inspector/compare/2.6.0...2.7.0 Smoke test ledger for milestone branch: [v2/chore/milestone-merge-v2.7.0](https://claude.ai/artifact/XDxtD46ZkMZeFSN6xh6gKB) ## Thanks for helping us improve This release addresses issues reported by these community members. Thank you for taking the time to file them: * @Avi-Jadhav03 (#2028) * @eitansuez (#1862) * @kraenhansen (#2208) * @tulshi (#2297)
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