diff --git a/CHANGELOG.md b/CHANGELOG.md
index 71a1120..3784843 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,19 @@ All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). See
 [conventional commits](https://www.conventionalcommits.org/en/v1.0.0/) for commit guidelines.
 
-## [Unreleased](https://github.com/afuetterer/python-re3data/compare/0.8.0...main)
+## [Unreleased](https://github.com/afuetterer/python-re3data/compare/0.9.0...main)
+
+## [0.9.0](https://github.com/afuetterer/python-re3data/compare/0.8.0...0.9.0) (2024-07-06)
+
+### Features
+
+- **cli:** add --outfile option for saving results to disk (#166) ([`1e689e8`](https://github.com/afuetterer/python-re3data/commit/1e689e850b6f5c117887eb1938b1a336422e5418))
+- **client:** add repository counting (#158) ([`c1cba53`](https://github.com/afuetterer/python-re3data/commit/c1cba53a408505c673de2aa8b4f6caddcb91cadd))
+
+### Documentation
+
+- **readme:** update key features in readme (#165) ([`2396cf5`](https://github.com/afuetterer/python-re3data/commit/2396cf59b1f2d62e917e9b335d8596aa4d3b38d6))
+- add features page (#157) ([`2348b01`](https://github.com/afuetterer/python-re3data/commit/2348b013ad16cacd8a85b72d9f6d488df1ab7f7e))
 
 ## [0.8.0](https://github.com/afuetterer/python-re3data/compare/0.7.0...0.8.0) (2024-07-03)
 
diff --git a/CITATION.cff b/CITATION.cff
index 5959fe7..54d251a 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -20,5 +20,5 @@ identifiers:
 - description: This is the collection of archived snapshots of all versions of python-re3data
   type: doi
   value: 10.5281/zenodo.11264510
-version: 0.8.0
-date-released: 2024-07-03
+version: 0.9.0
+date-released: 2024-07-06
diff --git a/src/re3data/__about__.py b/src/re3data/__about__.py
index a2f3830..a314e08 100644
--- a/src/re3data/__about__.py
+++ b/src/re3data/__about__.py
@@ -2,4 +2,4 @@
 #
 # SPDX-License-Identifier: MIT
 
-__version__ = "0.8.0"
+__version__ = "0.9.0"