Bun v1.2.20
Fixes 141 issues (addressing 429 👍). Reduced idle CPU usage. Improved `bun:test` diffing. Automatic `ETag` and `If-None-Match` in static routes for `Bun.serve`. 40x faster `AbortSignal.timeout`. Windows long path support. `WebAssembly.compileStreaming` and `WebAssembly.instantiateStreaming`. Many, many reliability improvements.
| Source | Bun Blog |
|---|---|
| Fetched | 10/22/2026, 10:27 PM |
| Data | Markdown JSON |
On 08/10/2025, 07:00 PM, Bun Blog published "Bun v1.2.20" (type: Release). Related technologies: Bun, JavaScript / Node.js.