Prepare release v318 (#1959)

heroku-linguist[bot] · web-flow · commit 947eb153e288 · 2025-11-12T17:35:02.000Z
Co-authored-by: heroku-linguist[bot] &lt;136119646+heroku-linguist[bot]@users.noreply.github.com&gt;
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 ## [Unreleased]
 
+
+## [v318] - 2025-11-12
+
 - Improved the error message shown when a `.python-version` file uses an unsupported file encoding. ([#1958](https://github.com/heroku/heroku-buildpack-python/pull/1958))
 - Improved the error message shown when a `.python-version` or `runtime.txt` file contain an invalid Python version. ([#1958](https://github.com/heroku/heroku-buildpack-python/pull/1958))
 - Added support for commented lines in `runtime.txt`, for parity with `.python-version`. ([#1958](https://github.com/heroku/heroku-buildpack-python/pull/1958))
@@ -1387,7 +1390,8 @@ Default Python is now latest 2.7.10. Updated pip and Distribute.
 - Setuptools updated to v16.0
 - pip updated to v7.0.1
 
-[unreleased]: https://github.com/heroku/heroku-buildpack-python/compare/v317...main
+[unreleased]: https://github.com/heroku/heroku-buildpack-python/compare/v318...main
+[v318]: https://github.com/heroku/heroku-buildpack-python/compare/v317...v318
 [v317]: https://github.com/heroku/heroku-buildpack-python/compare/v316...v317
 [v316]: https://github.com/heroku/heroku-buildpack-python/compare/v315...v316
 [v315]: https://github.com/heroku/heroku-buildpack-python/compare/v314...v315
