• Upgrade React from 4a3d993e-20260114 to bef88f7c-20260116: #88649
• fix: make RedirectType constant properties literal types: #88653
• Turbopack: add support for matching loaders on resource queries: #88644
• fix: capture promisified setImmediate separately: #88346

• Turbopack: use bugs.nextjs.org for Turbopack panic error reports: #88356
• Turbopack: docs: condition.query will ship in 16.2.0, not 16.1.1: #88663

Huge thanks to @naaa760, @sokra, @wbinnssmith, @jgeschwendt, and @bgw for helping!

• [core] fix: Remove changes to elevation shadow styles #7713 (#7713)

No documented user-facing changes

No documented user-facing changes

No documented user-facing changes

No documented user-facing changes

No documented user-facing changes

No documented user-facing changes

[!NOTE] This release is backporting bug fixes. It does not include all pending features/changes on canary.

• Fix linked list bug in LRU deleteFromLru (#88652)
• Fix relative same host redirects in node middleware (#88253)

Huge thanks to @acdlite and @ijjk for helping!

• Fix incorrect 'Ready in' time for next start: #88589
• feat: server action logging: #88277
• Log browser error and warnings in terminal: #88352

• Turbopack: avoid removing cells for erroring tasks: #88305
• [ci] Use native concurrency feature in build-and-test: #87287
• doc: add details of mcp client integration: #88543
• Turbopack: unflake unit test: #88620
• Turbopack: snapshot the ModuleGraph to avoid (eventual) inconsistent graphs: #88340
• Turbopack: Consistency for compute_async_module_info: #88409
• Turbopack: follow tracing spans through aggregation update queue: #88410
• Turbopack: avoid chunk_item_id task and use selective cell access instead: #88411
• Turbopack: MappedReadRef should be Send and Sync: #88558
• Turbopack: selective read for module_chunk_groups in ChunkGroupInfo: #88559
• Turbopack: use selective reads for merged modules: #88560
• Turbopack: add caching to chunking: #88561

Huge thanks to @sokra, @eps1lon, @timneutkens, and @huozhi for helping!