Bun.serve now respects socket backpressure for ReadableStream bodies (
7a5293c)
Bun.serve responses backed by ReadableStream bodies now stop pulling when the socket reports backpressure, awaiting the pending flush before continuing. This should prevent runaway buffering and improve behavior under slow clients; the patch also tightens close/cancel handling so writes stop cleanly if the sink dies mid-stream.
Fix crash when a client aborts a streaming response under backpressure (
8dd1b61)
A streaming response abort path could crash when HTTP/3 or corked TCP backpressure overlapped with the request lifetime. The fix separates writable callback state from request state and updates the sink/controller teardown path so aborts and late writes no longer race into the wrong object.
epoll_pwait2 now uses a raw syscall and disables itself on Android (1031c66)
Bun now issues epoll_pwait2 through a raw Linux syscall path and adds an escape hatch to disable it via feature flag. That avoids a segfaulting Android/seccomp edge case and makes the event loop fall back to older polling behavior when the syscall is blocked or faulty.
Windows fs.rm now maps more NTSTATUS failures correctly (b0fb1f7)
Windows filesystem errors now translate more NTSTATUS values through RtlNtStatusToDosError, fixing cases that were surfacing as generic UNKNOWN and crashing recursive fs.rm(..., { recursive: true }). The change preserves the special directory handling while preventing misclassification of driver/placeholder failures.
React Compiler substitution revisit keeps resolved identifiers (febcc24)
The parser no longer re-resolves identifiers during a substitution revisit if they already have a resolved Ref. That prevents generated React Compiler symbols from being rebound incorrectly, which could break minification and name preservation in bundled output.