diff --git a/CHANGELOG.md b/CHANGELOG.md
index a7e90f8df2358a8fbcd9a9798a8f38e9150e2609..d933e85574438e9cd5e21c546ea531e04502d0fb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased] ##
+## [0.13.0] - 2023-10-10 ##
 
 ### Added ###
 
@@ -27,16 +27,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   messages have been deprecated. Warnings are raised correspondingly.
 * `Message.get_code`. Use the `code` property instead.
 
-### Removed ###
-
 ### Fixed ###
 
 - Detection for cyclic references when converting entites using the high level API.
 
-### Security ###
-
-### Documentation ###
-
 ## [0.12.0] - 2023-06-02 ##
 
 ### Added ###
diff --git a/CITATION.cff b/CITATION.cff
index d9126aae6483459f8c8f248ed6a4fdf859f24e45..25534fad80b29d8ceb4eeb7da6b0bfd1a9505493 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -20,6 +20,6 @@ authors:
     given-names: Stefan
     orcid: https://orcid.org/0000-0001-7214-8125
 title: CaosDB - Pylib
-version: 0.12.0
+version: 0.13.0
 doi: 10.3390/data4020083
-date-released: 2023-06-02
\ No newline at end of file
+date-released: 2023-10-10
diff --git a/setup.py b/setup.py
index 8fdf3b1c63322ec48af398d1dcb1c4028355d473..bfdfa94f4c3e81c2174d722db7aa8192c9df1de8 100755
--- a/setup.py
+++ b/setup.py
@@ -45,10 +45,10 @@ from setuptools import find_packages, setup
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ########################################################################
 
-ISRELEASED = False
+ISRELEASED = True
 MAJOR = 0
-MINOR = 12
-MICRO = 1
+MINOR = 13
+MICRO = 0
 # Do not tag as pre-release until this commit
 # https://github.com/pypa/packaging/pull/515
 # has made it into a release. Probably we should wait for pypa/packaging>=21.4
diff --git a/src/doc/conf.py b/src/doc/conf.py
index 0fa5de575f5424e267cad8ecc193cca8230faa8b..2dd4ab62fd5248ca185ea2e0472c493134149cca 100644
--- a/src/doc/conf.py
+++ b/src/doc/conf.py
@@ -29,10 +29,10 @@ copyright = '2023, IndiScale GmbH'
 author = 'Daniel Hornung'
 
 # The short X.Y version
-version = '0.12.1'
+version = '0.13.0'
 # The full version, including alpha/beta/rc tags
 # release = '0.5.2-rc2'
-release = '0.12.1-dev'
+release = '0.13.0'
 
 
 # -- General configuration ---------------------------------------------------