diff --git a/CHANGELOG b/CHANGELOG
index 5196aa1..7131293 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -4,4 +4,11 @@
 
 == 4.0 ==
 - caused by: API incompatible changes in `oxt_extract`
-- SpellChecker API remains compatible to version 3
\ No newline at end of file
+- SpellChecker API remains compatible to version 3
+
+== 5.0 ==
+- removed `oxt_extract` and `pylocales` API
+- removed support for Python 2 and GTK 2
+- add support for GTK 4
+- add support for extra word characters
+- add support for batch rechecking of large buffers
\ No newline at end of file
diff --git a/LICENSE.txt b/LICENSE
similarity index 100%
rename from LICENSE.txt
rename to LICENSE
diff --git a/MANIFEST.in b/MANIFEST.in
deleted file mode 100644
index 60d8daa..0000000
--- a/MANIFEST.in
+++ /dev/null
@@ -1,8 +0,0 @@
-include LICENSE.txt
-include MANIFEST.in
-include README.md
-graft examples
-graft docs
-graft placeholders
-graft locale
-prune docs/build
\ No newline at end of file
diff --git a/README.md b/README.md
index 1ce9138..5210b07 100644
--- a/README.md
+++ b/README.md
@@ -50,7 +50,7 @@ Over time, several projects have used Python GTK Spellcheck or are still using i
 
 ## 🔖 Versions
 
-Version numbers follow [Semantic Versioning](http://semver.org/). However, the update from 3 to 4 pertains only API incompatible changes in `oxt_extract` and not the spellchecking component. The update from 4 to 5 removed support for Python 2, GTK 2, `pylocales`, and the `oxt_extract` API.
+Version numbers follow [Semantic Versioning](http://semver.org/). However, the update from 3 to 4 pertains only API incompatible changes in `oxt_extract` and not the spellchecking component. The update from 4 to 5 removed support for Python 2, GTK 2, `pylocales`, and the `oxt_extract` API. Otherwise, the API is still compatible with version 3.
 
 
 ## 📚 Documentation
diff --git a/pyproject.toml b/pyproject.toml
index 978dac2..f70701b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,7 @@ classifiers = [
     "Environment :: X11 Applications :: GTK",
     "Intended Audience :: Developers",
     "License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)",
-    "Operating System :: MacOS :: MacOS",
+    "Operating System :: MacOS",
     "Operating System :: Microsoft :: Windows",
     "Operating System :: POSIX",
     "Programming Language :: Python :: 3",