Add 25.2.0 to 2026 changelog

docs/content/2026-news.md

@@ -1,6 +1,39 @@
 <span id="news-2026"></span>
 # Changelog - 2026
 
+## 25.2.0 - 2026-03-24
+
+### New Features
+
+- **Fast HTTP Parser (gunicorn_h1c 0.4.1)**: Integrate new exception types and limit
+  parameters from gunicorn_h1c 0.4.1 for both WSGI and ASGI workers
+  - Requires gunicorn_h1c >= 0.4.1 for `http_parser='fast'`
+  - Falls back to Python parser in `auto` mode if version not met
+  - Proper HTTP status codes for limit errors (414, 431)
+
+### Bug Fixes
+
+- **uWSGI Async Workers**: Fix `InvalidUWSGIHeader: incomplete header` error
+  when using gevent or gthread workers with uwsgi protocol behind nginx.
+  ([#3552](https://github.com/benoitc/gunicorn/issues/3552),
+  [PR #3554](https://github.com/benoitc/gunicorn/pull/3554))
+
+- **FileWrapper Iterator Protocol**: Add `__iter__` and `__next__` methods to
+  `FileWrapper` for full PEP 3333 compliance. Previously only supported old-style
+  `__getitem__` iteration which broke code explicitly using `iter()` or `next()`.
+  ([#3396](https://github.com/benoitc/gunicorn/issues/3396),
+  [PR #3550](https://github.com/benoitc/gunicorn/pull/3550))
+
+### Performance
+
+- **ASGI HTTP Parser Optimizations**: Improve ASGI worker HTTP parsing performance
+  - Read chunks in 64-byte blocks instead of 1 byte at a time for chunk size lines and trailers
+  - Reuse BytesIO buffers with truncate/seek instead of creating new objects (reduces GC pressure)
+  - Use `bytearray.find()` directly instead of converting to bytes first
+  - Use index-based iteration for header parsing instead of `list.pop(0)` (O(1) vs O(n))
+
+---
+
 ## 25.1.0 - 2026-02-13
 
 ### New Features