diff --git a/CHANGELOG.md b/CHANGELOG.md
index 43d15b26..cc347bbc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [v4.0.0](https://github.com/bensheldon/good_job/tree/v4.0.0) (2024-07-07)
+
+[Full Changelog](https://github.com/bensheldon/good_job/compare/v3.99.0...v4.0.0)
+
+**Implemented enhancements:**
+
+- Release GoodJob v4 [\#1394](https://github.com/bensheldon/good_job/pull/1394) ([bensheldon](https://github.com/bensheldon))
+
 ## [v3.99.0](https://github.com/bensheldon/good_job/tree/v3.99.0) (2024-07-07)
 
 [Full Changelog](https://github.com/bensheldon/good_job/compare/v3.30.1...v3.99.0)
diff --git a/Gemfile.lock b/Gemfile.lock
index e765689d..8842917a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    good_job (3.99.0)
+    good_job (4.0.0)
       activejob (>= 6.1.0)
       activerecord (>= 6.1.0)
       concurrent-ruby (>= 1.3.1)
diff --git a/checksums/good_job-4.0.0.gem.sha256 b/checksums/good_job-4.0.0.gem.sha256
new file mode 100644
index 00000000..3ae478c4
--- /dev/null
+++ b/checksums/good_job-4.0.0.gem.sha256
@@ -0,0 +1 @@
+6e6488fdaf5ae4c6d1f8edadc1983365670557efc525c53def79fe1464ff9939
diff --git a/checksums/good_job-4.0.0.gem.sha512 b/checksums/good_job-4.0.0.gem.sha512
new file mode 100644
index 00000000..7affdbd7
--- /dev/null
+++ b/checksums/good_job-4.0.0.gem.sha512
@@ -0,0 +1 @@
+eda29535ba73e37ba3d38508d00ff58f49722db2419216f7f6cdf5f413b689a0d081c5bd6a4e4488b74962b1831780ef33f3fcf7ff08b12df24d9852f4747a6c
diff --git a/lib/good_job/version.rb b/lib/good_job/version.rb
index 49a8e9d0..69f03213 100644
--- a/lib/good_job/version.rb
+++ b/lib/good_job/version.rb
@@ -2,7 +2,7 @@
 
 module GoodJob
   # GoodJob gem version.
-  VERSION = '3.99.0'
+  VERSION = '4.0.0'
 
   # GoodJob version as Gem::Version object
   GEM_VERSION = Gem::Version.new(VERSION)