# swc-project/swc · RepoSense Release & Migration Intelligence

> Published swc_core v84.0.2 crates. Update dependency version. Migration: None.

## Metadata
- **Repository URL**: https://github.com/swc-project/swc
- **Primary Package**: `@swc/core` (NPM)
- **Categories**: `BUILD_TOOL`, `LANGUAGE`
- **Latest Version**: `swc_core@v84.0.2`
- **Semantic Status**: `COMPATIBLE`
- **Bundle Size Impact (unavailable)**: `Size Unavailable`
- **Atom Ingestion Feed**: https://github.com/swc-project/swc/releases.atom

## The Human Context (Plain-English Pitch)
SWC is a super-fast Rust-based platform for web development, acting as a drop-in replacement for Babel and traditional JavaScript bundlers. It eliminates compilation bottlenecks by offering blazing-fast parsing, transforming, and minification for modern web applications.

## Stage 1 Executive Summary ([Core Change] + [Required Action] + [Migration Effort])
Published swc_core v84.0.2 crates. Update dependency version. Migration: None.

## Breaking Changes & Required Actions
- Published new crate versions for `swc_core` under tag `v84.0.2`.
- Routine chore release with internal crate synchronization.

## Migration Snippet
```ts
cargo update -p swc_core
```

## Ecosystem Compatibility Matrix & Graph Warnings
- **Rust >=1.75** [`COMPATIBLE`]: Requires standard Rust toolchain for crate compilation and packaging.

## Zero-Noise Release Timeline
- **swc_core@v84.0.2** (2026-11-06) [COMPATIBLE]: Published swc_core v84.0.2 crates. Update dependency version. Migration: None.
- **v1.16.22** (2026-11-05) [COMPATIBLE]: Ships `@swc/core@1.16.22` with upstream runtime refinement. Drop-in upgrade. Migration: None.

## Upgrade & Migration Q&A (GEO Direct Answers)
### Is swc-project/swc swc_core@v84.0.2 safe to upgrade in production?
swc-project/swc swc_core@v84.0.2 is classified as COMPATIBLE (PATCH release). Published swc_core v84.0.2 crates. Update dependency version. Migration: None.

### What breaking changes or compatibility risks exist in swc-project/swc swc_core@v84.0.2?
No breaking API changes or peer dependency conflicts are recorded for swc-project/swc swc_core@v84.0.2 in the RepoSense compatibility graph.

### What is the bundle size impact of @swc/core swc_core@v84.0.2?
Measured bundle size telemetry is currently unavailable for @swc/core swc_core@v84.0.2; verify build output locally before deploying.

### How do I upgrade @swc/core to swc_core@v84.0.2?
Upgrade @swc/core to swc_core@v84.0.2 by running "npm install @swc/core@swc_core@v84.0.2" and applying the migration steps: cargo update -p swc_core