diff --git a/CHANGELOG.md b/CHANGELOG.md
index 75e34e9..a217798 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.10.0] - 2026-05-29
+
+### Changed
+
+- Upgrade to Ruby 4.0. [PR #53](https://github.com/riverqueue/riverqueue-ruby/pull/53).
+
 ## [0.9.1] - 2025-10-21
 
 ### Changed
diff --git a/Gemfile.lock b/Gemfile.lock
index 23ce27e..c09b8d6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,12 +1,12 @@
 PATH
   remote: .
   specs:
-    riverqueue (0.9.1)
+    riverqueue (0.10.0)
 
 PATH
   remote: driver/riverqueue-sequel
   specs:
-    riverqueue-sequel (0.9.1)
+    riverqueue-sequel (0.10.0)
       pg (> 0, < 1000)
       sequel (> 0, < 1000)
 
diff --git a/driver/riverqueue-activerecord/Gemfile.lock b/driver/riverqueue-activerecord/Gemfile.lock
index b5b56f1..67ebbfa 100644
--- a/driver/riverqueue-activerecord/Gemfile.lock
+++ b/driver/riverqueue-activerecord/Gemfile.lock
@@ -1,12 +1,12 @@
 PATH
   remote: ../..
   specs:
-    riverqueue (0.9.1)
+    riverqueue (0.10.0)
 
 PATH
   remote: .
   specs:
-    riverqueue-activerecord (0.9.1)
+    riverqueue-activerecord (0.10.0)
       activerecord (> 0, < 1000)
       activesupport (> 0, < 1000)
       pg (> 0, < 1000)
diff --git a/driver/riverqueue-activerecord/riverqueue-activerecord.gemspec b/driver/riverqueue-activerecord/riverqueue-activerecord.gemspec
index ddc3eaa..97400ac 100644
--- a/driver/riverqueue-activerecord/riverqueue-activerecord.gemspec
+++ b/driver/riverqueue-activerecord/riverqueue-activerecord.gemspec
@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name = "riverqueue-activerecord"
-  s.version = "0.9.1"
+  s.version = "0.10.0"
   s.summary = "ActiveRecord driver for the River Ruby gem."
   s.description = "ActiveRecord driver for the River Ruby gem. Use in conjunction with the riverqueue gem to insert jobs that are worked in Go."
   s.authors = ["Blake Gentry", "Brandur Leach"]
diff --git a/driver/riverqueue-sequel/Gemfile.lock b/driver/riverqueue-sequel/Gemfile.lock
index 08a59f3..4670252 100644
--- a/driver/riverqueue-sequel/Gemfile.lock
+++ b/driver/riverqueue-sequel/Gemfile.lock
@@ -1,12 +1,12 @@
 PATH
   remote: ../..
   specs:
-    riverqueue (0.9.1)
+    riverqueue (0.10.0)
 
 PATH
   remote: .
   specs:
-    riverqueue-sequel (0.9.1)
+    riverqueue-sequel (0.10.0)
       pg (> 0, < 1000)
       sequel (> 0, < 1000)
 
diff --git a/driver/riverqueue-sequel/riverqueue-sequel.gemspec b/driver/riverqueue-sequel/riverqueue-sequel.gemspec
index d067d0e..aea5305 100644
--- a/driver/riverqueue-sequel/riverqueue-sequel.gemspec
+++ b/driver/riverqueue-sequel/riverqueue-sequel.gemspec
@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name = "riverqueue-sequel"
-  s.version = "0.9.1"
+  s.version = "0.10.0"
   s.summary = "Sequel driver for the River Ruby gem."
   s.description = "Sequel driver for the River Ruby gem. Use in conjunction with the riverqueue gem to insert jobs that are worked in Go."
   s.authors = ["Blake Gentry", "Brandur Leach"]
diff --git a/riverqueue.gemspec b/riverqueue.gemspec
index fe8a58d..06ad1ef 100644
--- a/riverqueue.gemspec
+++ b/riverqueue.gemspec
@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name = "riverqueue"
-  s.version = "0.9.1"
+  s.version = "0.10.0"
   s.summary = "River is a fast job queue for Go."
   s.description = "River is a fast job queue for Go. Use this gem in conjunction with gems riverqueue-activerecord or riverqueue-sequel to insert jobs in Ruby which will be worked from Go."
   s.authors = ["Blake Gentry", "Brandur Leach"]