oxc Releases

This release updates both the linter (oxlint) and the formatter (oxfmt) with parser breaking changes. Oxfmt sees significant CSS formatting improvements and performance optimizations, while oxlint adds a new lint rule option.

Sep 7, 2026

This release introduces breaking changes to the parser, renaming `panicked` to `fatal_error` and reducing `MAX_LEN`. It also includes improvements to the minifier, allocator, and various bug fixes for code generation and parsing.

Sep 7, 2026

This release enhances the macOS Desktop experience by adding a Dock icon option and fixes browser login functionality for desktop installs. It also updates the release pipeline to use GitHub's macos-26 runner for signing installers.

Sep 4, 2026

This release resolves compatibility issues with macOS 26 (Tahoe) where the app was unreachable when the menu bar icon was hidden, and adds a new provider to the list.

Sep 4, 2026

A major feature release introducing task-aware routing, persistent SQLite caching, and new API endpoints for quota forecasting and model execution status.

Sep 3, 2026

A minor bug fix release that corrects the pricing display for the premium upsell in the dashboard.

Sep 2, 2026

This release includes performance optimizations, new provider and agent integrations, and enhanced analytics features.

Sep 2, 2026

This release includes updates for both Oxlint and Oxfmt. Oxlint introduces a suggestion for typos in Next.js and fixes several issues related to file support and plugin interactions. Oxfmt adds CSS formatting capabilities for raw-prelude rules and resolves numerous bugs concerning comment placement, semicolons, and typecasts.

Sep 1, 2026

This release focuses on minifier optimizations, including De Morgan's law expansion and folding leading assignments, alongside parser improvements for comment attachment and significant performance gains in code generation.

Sep 1, 2026

Oxlint v1.80.0 introduces a suggestion for confusing non-null assertions, while Oxfmt v0.65.0 fixes an issue with preserving class decorators before export when statements are suppressed.

Aug 24, 2026

This release focuses on minifier optimizations, specifically folding switch statements, and significant performance improvements in the codegen package by removing redundant parameters and initializing mappings eagerly.

Aug 24, 2026

Improvements to the minifier's handling of negation in boolean contexts and extensive performance optimizations in the codegen package to remove redundant loops and branches in hot paths.

Aug 19, 2026

Oxlint v1.79.0 splits React and React-compiler rules into separate categories, while Oxfmt v0.64.0 adds experimental operator position support and fixes various indentation issues.

Aug 18, 2026

A major release introducing full source map support, property name mangling options, and a new Relay transform plugin, along with a breaking change to the `printSync` return type.

Aug 18, 2026

Oxlint introduces new linting rules for JSDoc and ESLint, while Oxfmt improves handling of YAML frontmatter in CSS and adds IR equivalent for hardline without break parent.

Aug 10, 2026

Major AST restructuring including grouping class heritage, narrowing TypeScript interface heritage types, and splitting TS external modules and namespace declarations.

Aug 10, 2026

Significant AST changes including the introduction of `ExportDeclaration` and `ArrowFunctionBody`, along with allocator changes to make `Box` `Send` + `Sync`.

Aug 6, 2026

Oxlint v1.77.0 adds GitHub format annotations for error messages, and Oxfmt v0.62.0 introduces support for TSX-in-Vue and begins formatting parser:yaml files using the YAML formatter.

Aug 3, 2026

RuVector 0.2.40 integrates the research and optimization control plane into the npm SDK, CLI, and MCP server, enabling developers to access MetaHarness capabilities directly. This release requires Node.js 20 or newer and utilizes pinned dependencies to ensure installed packages match the tested capability set.

Jul 29, 2026

RVF v0.3.4 introduces durable copy-on-write (COW) branches and resolves correctness issues related to immediate read-through for sparse vector IDs. The release includes security hardening measures such as overflow checks and allocation caps to prevent abuse.

Jul 28, 2026