diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index b0034f9d..818c5627 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "8.3.1"
+  ".": "8.4.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 91ac9375..ed4afeb0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,19 @@
 
 All notable changes to the LaunchDarkly Ruby SDK will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org).
 
+## [8.4.0](https://github.com/launchdarkly/ruby-server-sdk/compare/8.3.1...8.4.0) (2024-04-05)
+
+This release introduces a Hooks API. Hooks are collections of user-defined callbacks that are executed by the SDK at various points of interest. You can use them to augment the SDK with metrics or tracing.
+
+### Features
+
+* Add initial support for hooks ([#256](https://github.com/launchdarkly/ruby-server-sdk/issues/256)) ([3cf16eb](https://github.com/launchdarkly/ruby-server-sdk/commit/3cf16ebd559053cef601de288bddbc6430fe33ec))
+
+
+### Bug Fixes
+
+* Adjust migration variation and hook interaction ([#264](https://github.com/launchdarkly/ruby-server-sdk/issues/264)) ([8067af6](https://github.com/launchdarkly/ruby-server-sdk/commit/8067af635e7adc726656ecf75d4395a30cb1e359))
+
 ## [8.3.1](https://github.com/launchdarkly/ruby-server-sdk/compare/8.3.0...8.3.1) (2024-03-28)
 
 
diff --git a/PROVENANCE.md b/PROVENANCE.md
index c87ea9a1..1b26c6c5 100644
--- a/PROVENANCE.md
+++ b/PROVENANCE.md
@@ -9,7 +9,7 @@ To verify SLSA provenance attestations, we recommend using [slsa-verifier](https
 <!-- x-release-please-start-version -->
 ```
 # Set the version of the SDK to verify
-SDK_VERSION=8.3.1
+SDK_VERSION=8.4.0
 ```
 <!-- x-release-please-end -->
 
diff --git a/lib/ldclient-rb/version.rb b/lib/ldclient-rb/version.rb
index bc523aa9..10ced2fd 100644
--- a/lib/ldclient-rb/version.rb
+++ b/lib/ldclient-rb/version.rb
@@ -1,3 +1,3 @@
 module LaunchDarkly
-  VERSION = "8.3.1" # x-release-please-version
+  VERSION = "8.4.0" # x-release-please-version
 end