# mswjs/msw · RepoSense Release & Migration Intelligence

> HandlersController: dispose of reset handlers (#2810) (381. Drop-in upgrade. Migration: None.

## Metadata
- **Repository URL**: https://github.com/mswjs/msw
- **Primary Package**: `msw` (NPM)
- **Categories**: `ECOSYSTEM`, `TESTING`
- **Latest Version**: `v3.0.3`
- **Semantic Status**: `COMPATIBLE`
- **Bundle Size Impact (unavailable)**: `Size Unavailable`
- **Atom Ingestion Feed**: https://github.com/mswjs/msw/releases.atom

## The Human Context (Plain-English Pitch)
msw is an open-source library and developer tool in the mswjs/msw ecosystem. It saves developers from writing repetitive low-level boilerplate from scratch by providing a battle-tested, open-source implementation ready for production.

## Stage 1 Executive Summary ([Core Change] + [Required Action] + [Migration Effort])
HandlersController: dispose of reset handlers (#2810) (381. Drop-in upgrade. Migration: None.

## Breaking Changes & Required Actions
- **HandlersController:** dispose of reset handlers (#2810) (3818a81) @kettanaito
- expose network context on `enable` in network sources (#2809) (d1fe8e6) @kettanaito

## Migration Snippet
```ts
npm install msw@3.0.3
```

## Ecosystem Compatibility Matrix & Graph Warnings
- **TypeScript 5.x** [`COMPATIBLE`]: Ships standard TypeScript declaration files without type regressions.

## Zero-Noise Release Timeline
- **v3.0.3** (2026-10-10) [COMPATIBLE]: HandlersController: dispose of reset handlers (#2810) (381. Drop-in upgrade. Migration: None.

## Upgrade & Migration Q&A (GEO Direct Answers)
### Is mswjs/msw v3.0.3 safe to upgrade in production?
mswjs/msw v3.0.3 is classified as COMPATIBLE (PATCH release). HandlersController: dispose of reset handlers (#2810) (381. Drop-in upgrade. Migration: None.

### What breaking changes or compatibility risks exist in mswjs/msw v3.0.3?
No breaking API changes or peer dependency conflicts are recorded for mswjs/msw v3.0.3 in the RepoSense compatibility graph.

### What is the bundle size impact of msw v3.0.3?
Measured bundle size telemetry is currently unavailable for msw v3.0.3; verify build output locally before deploying.

### How do I upgrade msw to v3.0.3?
Upgrade msw to v3.0.3 by running "npm install msw@3.0.3" and applying the migration steps: npm install msw@3.0.3