v16.2.1-canary.26 is a pre-release release. Key changes include:

• next-routing: middleware matching and app request URL normalization: #91859;
• docs: clarify serverless runtime behavior for use cache: #92232.

v16.2.1-canary.25 is a pre-release release. Key changes include:

• Include more context in macOS Rosetta 2 warning message: #92436;
• change the process name of builds: #92411.

v16.2.1-canary.24 is a pre-release release. Key changes include:

• chore: Upgrade to pnpm 10.x: #92283;
• fix(server-hmr): metadata routes overwrite page runtime HMR handler: #92273.

v16.2.1-canary.23 is a pre-release release. Key changes include:

• Allow for parsing app route strings with and without slot names.: #92327;
• use sorted inserts to improve builder performance: #91553.

v16.2.1-canary.22 is a pre-release release. Key changes include:

• Handle edge runtime in places that import node:stream: #92354;
• fix: add AGENTS.md at package root for agent discovery: #92376.

v16.2.1-canary.21 is a pre-release release. Key changes include:

• next-core: deduplicate output assets and detect content conflicts on emit: #92292;
• docs: add deploy tests documentation to contributing guide: #92388.

v16.2.1-canary.20 is a pre-release release. Key changes include:

• Improve existing dev server error message to suggest using it: #92317;
• Restart the next dev server if .next is deleted: #92135.

v16.2.1-canary.19 is a pre-release release. Key changes include:

• Add MCP get_compilation_issues tool and NAPI method: #92062;
• Ensure app-page reports stale ISR revalidation errors via onRequestError: #92282.

v16.2.1-canary.18 is a pre-release release. Key changes include:

• Add telemetry for adapterPath config usage: #92228;
• Node.js streams: First pass: #90500.

v16.2.1-canary.17 is a pre-release release. Key changes include:

• Improve revalidateTag JSDoc to include guidance about required second parameter: #92176;
• partial fallbacks: adapter support for intermediate shells: #91902.

v16.2.1-canary.16 is a pre-release release. Key changes include:

• Add rust-fingerprint task and SCCACHE passthrough env: #92167;
• Improve error message for deprecated experimental.dynamicIO config: #92081.

v16.2.1-canary.15 is a pre-release release. Key changes include:

• fix: handle file:// URLs from import.meta.resolve in cache handler path (fixes #73796): #90370;
• Turbopack: exclude metadata routes from server HMR: #92034.

v16.2.1-canary.14 is a pre-release release. Key changes include:

• [ftl] Include cause of route types: #92056;
• Upgrade React from 9627b5a1-20260327 to 74568e86-20260328: #92109.

v16.2.1-canary.13 is a pre-release release. Key changes include:

• docs: opengraph-image papercuts: #92018;
• Update revalidateTag examples to use the new two-argument signature: #92065.

v16.2.1-canary.12 is a pre-release release. Key changes include:

• Upgrade React from 3cb2c420-20260324 to 9627b5a1-20260327: #92015;
• [experiment] Add useOffline flag with offline retry behavior: #92011.

v16.2.1-canary.11 is a pre-release release. Key changes include:

• [devtools] Show AggregateError.errors in the error overlay: #91835;
• Upgrade React from 8b2e903a-20260320 to 3cb2c420-20260324: #91905.

v16.2.1-canary.10 is a pre-release release. Key changes include:

• turbo-tasks-backend: assert non-transient task_ids in track_modification: #91924;
• fix(turbopack): preserve resolveExtensions priority in read_matches fast path: #91856.

v16.2.1-canary.9 is a pre-release release: [segment bundling] bundle static prefetches based on size: #91439

v16.2.1-canary.8 is a pre-release release. Key changes include:

• Perf: Skip turning Set into Array: #91383;
• Perf: Move chunkloading instrumentation to separate function: #91382.

v16.2.1-canary.7 is a pre-release release. Key changes include:

• Avoid deprecated TS node10 moduleResolution defaults: #91847;
• [turbopack] Rebuild the docker build scripts: #91799.

v16.2.1-canary.6 is a pre-release release. Key changes include:

• [Segment Bundling] [Scaffolding] Ensure inlining hint correctness: #91320;
• Upgrade React from 3f0b9e61-20260317 to 8b2e903a-20260320: #91731.

v16.2.1-canary.5 is a pre-release release: docs: use errorinfo type consistently in catcherror docs: #91744

v16.2.1-canary.4 is a pre-release release. Key changes include:

• Fix adapter outputs for dynamic metadata routes: #91680;
• Turbopack: fix webpack loader runner layer: #91727.

v16.2.1 is a patch release. Key changes include:

• docs: post release amends;
• docs: fix broken Activity Patterns demo link in preserving UI state guide.

v16.2.1-canary.3 is a pre-release release. Key changes include:

• Fix layout segment optimization: move app-page imports to server-utility transition: #91701;
• Fix server actions in standalone mode with cacheComponents: #91711.

v16.2.1-canary.2 is a pre-release release. Key changes include:

• Turbopack: enable server HMR for app route handlers: #91466;
• Skip loadBindings() Lightning CSS check during next start: #91538.

v15.5.14 is a patch release. Key changes include:

• feat(next/image): add lru disk cache and images.maximumDiskCacheSize;
• Fix(pages-router): restore Content-Length and ETag for /_next/data/ JSON responses.

v16.2.1-canary.1 is a pre-release release. Key changes include:

• Fix(pages-router): restore Content-Length and ETag for /_next/data/ JSON responses: #90304;
• Add .claude/skills symlink: #91616.

v16.2.1-canary.0 is a pre-release release. Key changes include:

• Update vendored lodash to 4.17.23 to fix CVE-2025-13465: #91558;
• Fix invalid HTML response for route-level RSC requests in deployment adapter: #91541.

v16.2.1-canary.26 is a pre-release release. Key changes include:

• next-routing: middleware matching and app request URL normalization: #91859;
• docs: clarify serverless runtime behavior for use cache: #92232.

v16.2.1-canary.25 is a pre-release release. Key changes include:

• Include more context in macOS Rosetta 2 warning message: #92436;
• change the process name of builds: #92411.

v16.2.1-canary.24 is a pre-release release. Key changes include:

• chore: Upgrade to pnpm 10.x: #92283;
• fix(server-hmr): metadata routes overwrite page runtime HMR handler: #92273.

v16.2.1-canary.23 is a pre-release release. Key changes include:

• Allow for parsing app route strings with and without slot names.: #92327;
• use sorted inserts to improve builder performance: #91553.

v16.2.1-canary.22 is a pre-release release. Key changes include:

• Handle edge runtime in places that import node:stream: #92354;
• fix: add AGENTS.md at package root for agent discovery: #92376.

v16.2.1-canary.21 is a pre-release release. Key changes include:

• next-core: deduplicate output assets and detect content conflicts on emit: #92292;
• docs: add deploy tests documentation to contributing guide: #92388.

v16.2.1-canary.20 is a pre-release release. Key changes include:

• Improve existing dev server error message to suggest using it: #92317;
• Restart the next dev server if .next is deleted: #92135.

v16.2.1-canary.19 is a pre-release release. Key changes include:

• Add MCP get_compilation_issues tool and NAPI method: #92062;
• Ensure app-page reports stale ISR revalidation errors via onRequestError: #92282.

v16.2.1-canary.18 is a pre-release release. Key changes include:

• Add telemetry for adapterPath config usage: #92228;
• Node.js streams: First pass: #90500.

v16.2.1-canary.17 is a pre-release release. Key changes include:

• Improve revalidateTag JSDoc to include guidance about required second parameter: #92176;
• partial fallbacks: adapter support for intermediate shells: #91902.

v16.2.1-canary.16 is a pre-release release. Key changes include:

• Add rust-fingerprint task and SCCACHE passthrough env: #92167;
• Improve error message for deprecated experimental.dynamicIO config: #92081.

v16.2.1-canary.15 is a pre-release release. Key changes include:

• fix: handle file:// URLs from import.meta.resolve in cache handler path (fixes #73796): #90370;
• Turbopack: exclude metadata routes from server HMR: #92034.

v16.2.1-canary.14 is a pre-release release. Key changes include:

• [ftl] Include cause of route types: #92056;
• Upgrade React from 9627b5a1-20260327 to 74568e86-20260328: #92109.

v16.2.1-canary.13 is a pre-release release. Key changes include:

• docs: opengraph-image papercuts: #92018;
• Update revalidateTag examples to use the new two-argument signature: #92065.

v16.2.1-canary.12 is a pre-release release. Key changes include:

• Upgrade React from 3cb2c420-20260324 to 9627b5a1-20260327: #92015;
• [experiment] Add useOffline flag with offline retry behavior: #92011.

v16.2.1-canary.11 is a pre-release release. Key changes include:

• [devtools] Show AggregateError.errors in the error overlay: #91835;
• Upgrade React from 8b2e903a-20260320 to 3cb2c420-20260324: #91905.

v16.2.1-canary.10 is a pre-release release. Key changes include:

• turbo-tasks-backend: assert non-transient task_ids in track_modification: #91924;
• fix(turbopack): preserve resolveExtensions priority in read_matches fast path: #91856.

v16.2.1-canary.9 is a pre-release release: [segment bundling] bundle static prefetches based on size: #91439

v16.2.1-canary.8 is a pre-release release. Key changes include:

• Perf: Skip turning Set into Array: #91383;
• Perf: Move chunkloading instrumentation to separate function: #91382.

v16.2.1-canary.7 is a pre-release release. Key changes include:

• Avoid deprecated TS node10 moduleResolution defaults: #91847;
• [turbopack] Rebuild the docker build scripts: #91799.

v16.2.1-canary.6 is a pre-release release. Key changes include:

• [Segment Bundling] [Scaffolding] Ensure inlining hint correctness: #91320;
• Upgrade React from 3f0b9e61-20260317 to 8b2e903a-20260320: #91731.

v16.2.1-canary.5 is a pre-release release: docs: use errorinfo type consistently in catcherror docs: #91744

v16.2.1-canary.4 is a pre-release release. Key changes include:

• Fix adapter outputs for dynamic metadata routes: #91680;
• Turbopack: fix webpack loader runner layer: #91727.

v16.2.1 is a patch release. Key changes include:

• docs: post release amends;
• docs: fix broken Activity Patterns demo link in preserving UI state guide.

v16.2.1-canary.3 is a pre-release release. Key changes include:

• Fix layout segment optimization: move app-page imports to server-utility transition: #91701;
• Fix server actions in standalone mode with cacheComponents: #91711.

v16.2.1-canary.2 is a pre-release release. Key changes include:

• Turbopack: enable server HMR for app route handlers: #91466;
• Skip loadBindings() Lightning CSS check during next start: #91538.

v15.5.14 is a patch release. Key changes include:

• feat(next/image): add lru disk cache and images.maximumDiskCacheSize;
• Fix(pages-router): restore Content-Length and ETag for /_next/data/ JSON responses.

v16.2.1-canary.1 is a pre-release release. Key changes include:

• Fix(pages-router): restore Content-Length and ETag for /_next/data/ JSON responses: #90304;
• Add .claude/skills symlink: #91616.

v16.2.1-canary.0 is a pre-release release. Key changes include:

• Update vendored lodash to 4.17.23 to fix CVE-2025-13465: #91558;
• Fix invalid HTML response for route-level RSC requests in deployment adapter: #91541.