diff --git a/CHANGELOG.md b/CHANGELOG.md
index b7f9fb0..6991a82 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,15 @@
+# [4.0.0](https://github.com/aaronmussig/magna/compare/v3.5.0...v4.0.0) (2022-09-27)
+
+
+### Features
+
+* **rust:** Added PYO3 rust bindings and updated CI/CD. ([7d28848](https://github.com/aaronmussig/magna/commit/7d2884865472305c32604f371c9c3753e55da201))
+
+
+### BREAKING CHANGES
+
+* **rust:** Rust is required.
+
 # [3.5.0](https://github.com/aaronmussig/magna/compare/v3.4.1...v3.5.0) (2022-07-15)
 
 
diff --git a/magna/__init__.py b/magna/__init__.py
index 7994f4c..4c25c84 100644
--- a/magna/__init__.py
+++ b/magna/__init__.py
@@ -1,7 +1,7 @@
 __title__ = 'magna'
 __description__ = 'Magna is a collection of commands that I frequently use in bioinformatics and day-to-day life.'
 __url__ = 'https://github.com/aaronmussig/magna'
-__version__ = '3.5.0'
+__version__ = '4.0.0'
 __author__ = 'Aaron Mussig'
 __author_email__ = 'aaronmussig@gmail.com'
 __license__ = 'GNU AGPLv3'