# v0.4.63 (2026-05-26)

## Fixes
- proxyFetch: restore missing `Readable` import causing runtime `ReferenceError` in DNS-bypass fetch path

## Improvements
- Lower stream stall timeout from 60s → 35s for faster hang detection

open-sse/config/runtimeConfig.js

@@ -32,7 +32,7 @@ export const MEMORY_CONFIG = {
 };
 
 // Stream stall timeout: abort if no chunk received within this duration
-export const STREAM_STALL_TIMEOUT_MS = 60 * 1000;
+export const STREAM_STALL_TIMEOUT_MS = 35 * 1000;
 
 // Fetch connect timeout: abort if upstream doesn't return response headers within this duration
 export const FETCH_CONNECT_TIMEOUT_MS = 20 * 1000;