Draft changelog: MCP test collections, API updates, bisection skips

changelog/2026-10-06-flaky-tests-mcp-test-collections-and-api-updates.mdx

@@ -0,0 +1,24 @@
+---
+title: "Flaky Tests: MCP Test Collection Support and API Updates"
+description: "The Trunk MCP server now reads test collections, the v2 API can link tickets to tests, and the CLI downloads from trunk.io."
+date: 2026-10-06
+category: Flaky Tests
+type: new-feature
+---
+
+**Your AI tools and API integrations now work with test collections.**
+
+### New features
+
+- **MCP server reads test collections.** [`search-test`](/flaky-tests/reference/mcp-reference/search-test) and [`investigate-ci-failure`](/flaky-tests/reference/mcp-reference/investigate-ci-failure) now include results from your [test collections](/flaky-tests/test-collections). Search results show each test's Collection ID and quarantine state.
+- **New `list-test-collections` MCP tool.** [List the collections](/flaky-tests/reference/mcp-reference/list-test-collections) a repository uploads to. Pass a Collection ID to `search-test` to search just that collection.
+- **Link a ticket through the v2 API.** The new [Link a ticket to a test](/flaky-tests/reference/api-reference/v2/tests/link-a-ticket-to-a-test) endpoint closes the last gap with the v1 API.
+
+### Updates
+
+- **v2 API endpoints renamed to `tests`.** The v2 `test-cases` endpoints are now under `/v2/tests`. See the [API reference](/flaky-tests/reference/api-reference).
+- **Download the CLI from trunk.io.** The analytics CLI is now served from `https://trunk.io/releases/analytics-cli/prod`. GitHub rate-limits release downloads, so switch your CI scripts over for more reliable uploads. See [Manual Download](/flaky-tests/reference/cli-reference#manual-download).
+
+<Note>
+`fix-flaky-test` doesn't support test collections yet. If your organization has fully moved to collections, use `search-test` instead. See [AI agents and the MCP server](/flaky-tests/get-started/migrate-to-test-collections#ai-agents-and-the-mcp-server).
+</Note>

changelog/2026-10-06-merge-queue-skip-redundant-bisection-tests.mdx

@@ -0,0 +1,17 @@
+---
+title: "Merge Queue: Skip Redundant Bisection Tests"
+description: "Bisection now skips combinations of PRs that already failed and re-splits them right away, saving CI runs and time."
+date: 2026-10-06
+category: Merge Queue
+type: update
+---
+
+**Find the PR that broke a batch faster, with fewer CI runs.**
+
+With **Skip Redundant Bisection Tests** enabled, Trunk won't re-test a set of PRs that already failed in the same bisection. It reuses that failure instead.
+
+- **Immediate re-splits.** Skipped groups are split and re-tested right away, alongside the rest of the bisection, instead of waiting on the tests ahead of them.
+- **Only failures are reused.** A cached result never marks a PR as passed. Trunk discards a reused failure if the base changes or the bisection restarts.
+- **Opt-in.** Turn it on in your queue's **Settings** under **Batching**, through the [API](/merge-queue/reference/api-v2/mergequeues/update-a-merge-queues-configuration), or with [Terraform](/merge-queue/administration/terraform).
+
+If your queue sees many flaky failures, pair this with [Anti-flake protection](/merge-queue/optimizations/anti-flake-protection). See [Test caching during bisection](/merge-queue/optimizations/batching#test-caching-during-bisection) for details.

changelog/index.mdx

@@ -6,6 +6,20 @@ rss: true
 
 ## 2026
 
+### October 2026
+
+<Update label="October 6, 2026" tags={["Flaky Tests"]}>
+  **[Flaky Tests: MCP Test Collection Support and API Updates](/changelog/2026-10-06-flaky-tests-mcp-test-collections-and-api-updates)**
+
+  The Trunk MCP server now reads test collections, the v2 API can link tickets to tests, and the CLI downloads from trunk.io.
+</Update>
+
+<Update label="October 6, 2026" tags={["Merge Queue"]}>
+  **[Merge Queue: Skip Redundant Bisection Tests](/changelog/2026-10-06-merge-queue-skip-redundant-bisection-tests)**
+
+  Bisection now skips combinations of PRs that already failed and re-splits them right away, saving CI runs and time.
+</Update>
+
 ### September 2026
 
 <Update label="September 30, 2026" tags={["Flaky Tests"]}>

docs.json

@@ -926,6 +926,13 @@
           {
             "group": "2026",
             "pages": [
+              {
+                "group": "October",
+                "pages": [
+                  "changelog/2026-10-06-flaky-tests-mcp-test-collections-and-api-updates",
+                  "changelog/2026-10-06-merge-queue-skip-redundant-bisection-tests"
+                ]
+              },
               {
                 "group": "September",
                 "pages": [

flaky-tests/changelog.mdx

@@ -7,6 +7,14 @@ og:title: "Trunk Flaky Tests changelog"
 
 ## 2026
 
+### October 2026
+
+<Update label="October 6, 2026" tags={["Flaky Tests"]}>
+  **[Flaky Tests: MCP Test Collection Support and API Updates](/changelog/2026-10-06-flaky-tests-mcp-test-collections-and-api-updates)**
+
+  The Trunk MCP server now reads test collections, the v2 API can link tickets to tests, and the CLI downloads from trunk.io.
+</Update>
+
 ### September 2026
 
 <Update label="September 30, 2026" tags={["Flaky Tests"]}>

merge-queue/changelog.mdx

@@ -7,6 +7,14 @@ og:title: "Trunk Merge Queue changelog"
 
 ## 2026
 
+### October 2026
+
+<Update label="October 6, 2026" tags={["Merge Queue"]}>
+  **[Merge Queue: Skip Redundant Bisection Tests](/changelog/2026-10-06-merge-queue-skip-redundant-bisection-tests)**
+
+  Bisection now skips combinations of PRs that already failed and re-splits them right away, saving CI runs and time.
+</Update>
+
 ### August 2026
 
 <Update label="August 26, 2026" tags={["Merge Queue"]}>