Add a What's New entry for Emscripten (#137035)

hoodmane · AA-Turner · hugovk · web-flow · commit d7e12a362a2a · 2025-07-29T01:42:07.000+01:00
Co-authored-by: Adam Turner &lt;9087854+AA-Turner@users.noreply.github.com&gt;
Co-authored-by: Hugo van Kemenade &lt;1324225+hugovk@users.noreply.github.com&gt;
Co-authored-by: Stan Ulbrych &lt;89152624+StanFromIreland@users.noreply.github.com&gt;
diff --git a/Doc/whatsnew/3.14.rst b/Doc/whatsnew/3.14.rst
@@ -1081,6 +1081,18 @@ The behavior of :func:`!gc.collect` changes slightly:
 
 (Contributed by Mark Shannon in :gh:`108362`.)
 
+Platform support
+================
+
+* :pep:`776`: Emscripten is now an officially supported platform at
+  :pep:`tier 3 <11#tier-3>`. As a part of this effort, more than 25 bugs in
+  `Emscripten libc`__ were fixed. Emscripten now includes support
+  for :mod:`ctypes`, :mod:`termios`, and :mod:`fcntl`, as well as
+  experimental support for :ref:`PyREPL <tut-interactive>`.
+
+  (Contributed by R. Hood Chatham in :gh:`127146`, :gh:`127683`, and :gh:`136931`.)
+
+  __ https://emscripten.org/docs/porting/emscripten-runtime-environment.html
 
 Other language changes
 ======================
