Added version 1.31.1 CHANGES.

CHANGES

@@ -1,4 +1,31 @@
 
+Changes with Unit 1.31.1                                         19 Oct 2023
+
+    *) Feature: allow to set the HTTP response status in Wasm module.
+
+    *) Feature: allow uploads larger than 4GiB in Wasm module.
+
+    *) Bugfix: application process could crash while rewriting URLs with
+       query strings.
+
+    *) Bugfix: requests larger than about 64MiB could cause error in Wasm
+       module.
+
+    *) Bugfix: when using many headers in Java module some of them could be
+       corrupted due to memory realocation issue.
+
+    *) Bugfix: ServerRequest.destroy() implemented in Node.js module to make
+       it compatible with some frameworks that might use it.
+
+    *) Bugfix: chunk argument of ServerResponse.write() can now be a
+       Uint8Array to improve compatibility with Node.js 15.0.0 and above.
+
+    *) Bugfix: Node.JS unit-http NPM module now has appropriate default
+       paths for macOS/arm64 systems.
+
+    *) Bugfix: build on musl libc with clang.
+
+
 Changes with Unit 1.31.0                                         31 Aug 2023
 
     *) Change: if building with njs, version 0.8.0 or later is now required.