Cron now runs in local time, with optional time zones (
a1f6de1)
Bun.cron.parse() and in-process Bun.cron(schedule, handler) now interpret schedules in the system’s local time zone by default instead of UTC. The new { tz } option lets callers pin an IANA zone like UTC or America/New_York, which makes cron behavior match the OS-level overload and clarifies DST handling.
SQL date/timestamp infinities now round-trip correctly (708525f)
Postgres 'infinity'/'-infinity' values were being collapsed into Invalid Date/NaN. Bun now preserves them as JS ±Infinity on decode and maps them back to Postgres endpoints on encode, fixing silent data loss for date and timestamp fields.
Bun.serve now evaluates ETag/time-based preconditions correctly (f262074)
Static and file routes now honor If-Match and If-Unmodified-Since before If-None-Match/If-Modified-Since, matching RFC 9110 precedence. That fixes cases where Bun could return 304 when it should have failed with 412.
fetch() and WebSocket edge cases get more browser/Node-compatible (bbf0e3f, 45f21e5, 4b3329b)
Streaming fetch() aborts now release unread buffered body data and surface the abort to the reader instead of ending cleanly. Separately, fetch(..., { method: "OPTIONS", body }) is now allowed, and WebSocket ping/pong/send-after-close behavior was tightened to better match ws/RFC expectations.
Server and HTTP timeout/close handling is more robust (f3bdc54, 80b9108, 4915f42)
Bun.serve no longer panics when socket address lookup fails, and large HTTPS/HTTP responses are less likely to truncate when peers half-close or FIN early. These are reliability fixes for real connection-close and backpressure paths that previously dropped data or crashed.
Other misc changes
- Test/perf work: syntax fixture batching, reduced static server stress iterations, cron/websocket/fetch/sql regression coverage, and flake fixes.
- Internal refactors and dead-code cleanup across Rust/C++/JS runtime code.
- Build/CI tweaks, dependency bumps, and link/Windows portability fixes.
- Docs and type updates for cron options and related API changes.