diff --git a/docs/changelog.rst b/docs/changelog.rst
index 72fbf9f0..b200c031 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -21,6 +21,11 @@ To avail of fixes in an unreleased version, please download a ZIP file
 Unreleased
 ----------
 
+
+
+v0.3.9 (2024-08-13)
+-------------------
+
 * :gh:issue:`1097` Respect `ansible_facts.discovered_interpreter_python` when
   executing non new-style modules (e.g. JSONARGS style, WANT_JSON style).
 * :gh:issue:`1074` Support Ansible 10 (ansible-core 2.17)
diff --git a/docs/conf.py b/docs/conf.py
index 93469733..b7dd1525 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -2,7 +2,7 @@ import sys
 
 sys.path.append('.')
 
-VERSION = '0.3.8'
+VERSION = '0.3.9'
 
 author = u'Network Genomics'
 copyright = u'2021, the Mitogen authors'
diff --git a/mitogen/__init__.py b/mitogen/__init__.py
index ce6c2de0..1d483ead 100644
--- a/mitogen/__init__.py
+++ b/mitogen/__init__.py
@@ -35,7 +35,7 @@ be expected. On the slave, it is built dynamically during startup.
 
 
 #: Library version as a tuple.
-__version__ = (0, 3, 9, 'dev0')
+__version__ = (0, 3, 10, 'dev')
 
 
 #: This is :data:`False` in slave contexts. Previously it was used to prevent