diff --git a/docs/changelog.rst b/docs/changelog.rst
index 3f475e60..cca3e5d5 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -19,7 +19,11 @@ To avail of fixes in an unreleased version, please download a ZIP file
 
 
 In progress (unreleased)
-------------------------
+========================
+
+
+v0.3.25 (2025-07-29)
+--------------------
 
 Ansible 12 has deprecated third-party strategy plugins. This is currently
 how Mitogen integrates with Ansible (e.g. `ANSIBLE_STRATEGY=mitogen_linear`).
@@ -32,6 +36,8 @@ Running Ansible 12 + Mitogen will currently print a deprecation warning
 Ansible + Mitogen will still work for now. Mitogen is considering alternatives
 to strategy plugins under :gh:issue:`1278`.
 
+* :gh:issue:`1258` Ansible 12 (ansible-core 2.19) support
+
 
 v0.3.25b1 (2025-07-21)
 ----------------------
diff --git a/mitogen/__init__.py b/mitogen/__init__.py
index baa59b45..4569e344 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, 25, 'dev')
+__version__ = (0, 3, 26, 'dev')
 
 
 #: This is :data:`False` in slave contexts. Previously it was used to prevent
diff --git a/tox.ini b/tox.ini
index e2714b5e..569d9936 100644
--- a/tox.ini
+++ b/tox.ini
@@ -88,8 +88,7 @@ deps =
     ansible9: ansible~=9.0
     ansible10: ansible~=10.0
     ansible11: ansible~=11.0
-    ansible12: ansible>=12.0a7
-    ansible12: ansible-core>=2.19rc1
+    ansible12: ansible>=12.0.0b2
 install_command =
     python -m pip --no-python-version-warning --disable-pip-version-check install {opts} {packages}
 commands_pre =