diff --git a/.gitignore b/.gitignore
index bea87d4..6a35f65 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,3 +25,5 @@ cover/
 htmlcov/
 .cache/
 .coverage
+.vscode/
+.python-version
diff --git a/CHANGES.txt b/CHANGES.txt
index 7798dbc..f840bf7 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,3 +1,11 @@
+4.2.1 - 2024-09-21
+--------------------
+- Remove `SIGUSR2` from `TERMSIGS_DEAULT`
+- Add on_ready_counter to Worker.__reduce__.
+- Adapt for logging lock internal changes in Python3.13
+- blacksmith.sh: Migrate workflows to blacksmith
+- Prepare for release: v4.2.1
+
 4.2.0 - 2023-11-06
 --------------------
 - Update process.py to close during join only if process has completed.
diff --git a/README.rst b/README.rst
index 706313f..2412c83 100644
--- a/README.rst
+++ b/README.rst
@@ -1,7 +1,7 @@
 ========
 billiard
 ========
-:version: 4.2.0
+:version: 4.2.1
 
 |build-status-lin| |build-status-win| |license| |wheel| |pyversion| |pyimp|
 
diff --git a/billiard/__init__.py b/billiard/__init__.py
index c876b7e..6742885 100644
--- a/billiard/__init__.py
+++ b/billiard/__init__.py
@@ -19,9 +19,10 @@
 
 
 import sys
+
 from . import context
 
-VERSION = (4, 2, 0)
+VERSION = (4, 2, 1)
 __version__ = '.'.join(map(str, VERSION[0:4])) + "".join(VERSION[4:])
 __author__ = 'R Oudkerk / Python Software Foundation'
 __author_email__ = 'python-dev@python.org'