diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..524d8c8
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,22 @@
+# Changelog
+
+## [1.0.0](https://github.com/bihealth/altamisa/compare/v0.2.9...v1.0.0) (2024-02-05)
+
+
+### ⚠ BREAKING CHANGES
+
+* Support semicolon-separated lists in Performer fields ([#141](https://github.com/bihealth/altamisa/issues/141))
+* Support semicolon-separated lists in Factor Value fields
+
+### Features
+
+* Improved error messages for protocol parameters & components ([#106](https://github.com/bihealth/altamisa/issues/106)) ([571bfcc](https://github.com/bihealth/altamisa/commit/571bfcc68cca19ef42b26075ff5a3c116b6e77b8))
+* Set up proper type checking ([40c81ae](https://github.com/bihealth/altamisa/commit/40c81ae1bbe5a609f504ea76e7e90906bbf7f4de))
+* Support semicolon-separated lists in Factor Value fields ([5518814](https://github.com/bihealth/altamisa/commit/551881414ea10f058e66cd7180cfb912986b71cf))
+* Support semicolon-separated lists in Performer fields ([#141](https://github.com/bihealth/altamisa/issues/141)) ([ef8668c](https://github.com/bihealth/altamisa/commit/ef8668c246ab5364d1aac7636c81817a94bdc304))
+
+
+### Bug Fixes
+
+* Inconsistent attribute naming ([#127](https://github.com/bihealth/altamisa/issues/127)) ([2572456](https://github.com/bihealth/altamisa/commit/2572456fa7d0c6a2611f5a4a85603e04fcd37240))
+* Typo in missing STUDY section error msg ([#103](https://github.com/bihealth/altamisa/issues/103)) ([57fb63d](https://github.com/bihealth/altamisa/commit/57fb63d6d7604798016311d1b7feeb0721f0744f))
diff --git a/altamisa/version.py b/altamisa/version.py
index 75cf783..5becc17 100644
--- a/altamisa/version.py
+++ b/altamisa/version.py
@@ -1 +1 @@
-__version__ = "0.2.9"
+__version__ = "1.0.0"