Who contributed to Vercel on July 7, 2026?

7 developers shipped this update, including anthonyshew, felixarntz, ruiconti, bensabic, AndrewBarba, LukeSheard, and bryan-hunter.

What were the notable Vercel updates?

feat: Serve the Remote Cache as an sccache backend for Cargo tasks (#13288), feat: Embed sccache so the Cargo compile cache needs no installation (#13293), and fix: Stop ambient CARGO_INCREMENTAL from suppressing compile cache injection (#13298).

Jul 7, 2026

$ the-wire · showcase

TURBOREPO CARGO COMPILE CACHE LANDS FULLY EMBEDDED, NEXT.JS DISABLES IMMUTABLE ASSETS FOR EXPORTS

By RepoJournal · Filed 06:01 UTC on July 7, 2026 · About Vercel · Composed from the cited sources · methodology

7 people shipped this

ruiconti @ruiconti 2 cited

anthonyshew @anthonyshew 1 cited

felixarntz @felixarntz 1 cited

bensabic @bensabic 1 cited

AndrewBarba @AndrewBarba 1 cited

LukeSheard @LukeSheard 1 cited

bryan-hunter @bryan-hunter 1 cited

Turborepo shipped zero-infrastructure Cargo compilation caching by embedding sccache directly into the binary, while Next.js locked down immutable assets for non-adapter output modes.

Turborepo's Cargo compile cache series landed its final pieces overnight. The feature serves Turborepo's remote cache as an sccache backend [1], eliminating the need for separate S3 or GitHub Actions cache infrastructure. But sccache required installation on PATH until today, when the team embedded it as a linked library, making the entire setup a single flag flip [2]. A critical fix landed simultaneously: CARGO_INCREMENTAL was blocking injection on every CI run [3], discovered during GHA validation. A fourth patch prevents storage failures from failing the build entirely [4], handling the case where bad credentials would tank the whole compilation. End-to-end coverage for Cargo workspaces landed to lock in the full surface from discovery through caching [5]. In Next.js, supportsImmutableAssets is now disabled for export and standalone output modes [11], since those paths bypass adapters and can't deliver the necessary asset data. Turbopack fixed a dynamic exports sealing conflict where barrel files re-exporting CJS chains would hit Object.seal restrictions [12]. Eve shipped three major features: subagent workflows return with a maxSubagents cap [7], skill files now write to `$HOME/.agents/skills` instead of polluting workspace directories [6], and all three subagent types now surface token usage to callers [8]. The Chat SDK channel defaults expanded with markdown rendering and streaming deltas [9], and Slack channel now preserves markdown when combining file uploads [10]. Vercel CLI removed the VERCEL_RESOLVE_ROOT_DIRECTORY guard, shipping monorepo subdirectory builds by default [13], and fixed generated service route preservation in Services V2 nested output [14]. CLI sandbox bumped to 3.4.0 [15], and `vercel list` now emits machine-readable JSON when project resolution fails [16].

Action items

→ If you maintain Cargo monorepos in CI, try the compile cache with --turobopack-compile-cache flag enabled vercel/turborepo [plan]
→ If you're testing Next.js 15 with output=export or output=standalone, verify supportsImmutableAssets behavior isn't breaking your build vercel/next.js [monitor]
→ Deploy Vercel CLI to pick up monorepo subdirectory build fixes and sandbox 3.4.0 vercel/vercel [plan]
→ If you use Eve agent workflows, start with the ExperimentalWorkflow tool and set maxSubagents budget per your use case vercel/eve [plan]

References

[1] feat: Serve the Remote Cache as an sccache backend for Cargo tasks (#13288) ↗ vercel/turborepo
[2] feat: Embed sccache so the Cargo compile cache needs no installation (#13293) ↗ vercel/turborepo
[3] fix: Stop ambient CARGO_INCREMENTAL from suppressing compile cache injection (#13298) ↗ vercel/turborepo
[4] fix: Never let compile cache storage failures fail the build (#13299) ↗ vercel/turborepo
[5] test: Add end-to-end coverage for Cargo workspaces ↗ vercel/turborepo
[6] feat(eve): write skills into `$HOME/.agents/skills` instead of the workspace directory ↗ vercel/eve
[7] feat(eve): reintroduce ExperimentalWorkflow with a maxSubagents cap ↗ vercel/eve
[8] feat(eve): surface subagent usage to callers ↗ vercel/eve
[9] feat(channels): expand chat sdk channel defaults ↗ vercel/eve
[10] fix(eve): slack channel - preserve markdown with file uploads ↗ vercel/eve
[11] Disable `supportsImmutableAssets` with `config.output` (#95521) ↗ vercel/next.js
[12] Turbopack: add all keys to dynamic exports before sealing the object (#93334) ↗ vercel/next.js
[13] [cli] Remove VERCEL_RESOLVE_ROOT_DIRECTORY guard (#16913) ↗ vercel/vercel
[14] [cli] Preserve generated service routes (#16938) ↗ vercel/vercel
[15] Update CLI sandbox dependency to 3.4.0 ↗ vercel/vercel
[16] [cli] Emit agent-output JSON when `vercel list <project>` does not resolve ↗ vercel/vercel