diff --git a/.jazzy.yaml b/.jazzy.yaml
index bc06fedab..8eb2be6d3 100644
--- a/.jazzy.yaml
+++ b/.jazzy.yaml
@@ -2,11 +2,11 @@ author_url: "https://www.bugsnag.com"
 author: "Bugsnag Inc"
 clean: false # avoid deleting docs/.git
 framework_root: "Bugsnag"
-github_file_prefix: "https://github.com/bugsnag/bugsnag-cocoa/tree/v6.28.0/Bugsnag"
+github_file_prefix: "https://github.com/bugsnag/bugsnag-cocoa/tree/v6.28.1/Bugsnag"
 github_url: "https://github.com/bugsnag/bugsnag-cocoa"
 hide_documentation_coverage: true
 module: "Bugsnag"
-module_version: "6.28.0"
+module_version: "6.28.1"
 objc: true
 output: "docs"
 readme: "README.md"
diff --git a/Bugsnag.podspec.json b/Bugsnag.podspec.json
index 3a9045a36..17392ef0f 100644
--- a/Bugsnag.podspec.json
+++ b/Bugsnag.podspec.json
@@ -1,6 +1,6 @@
 {
   "name": "Bugsnag",
-  "version": "6.28.0",
+  "version": "6.28.1",
   "summary": "The Bugsnag crash reporting framework for Apple platforms.",
   "homepage": "https://bugsnag.com",
   "license": "MIT",
@@ -9,7 +9,7 @@
   },
   "source": {
     "git": "https://github.com/bugsnag/bugsnag-cocoa.git",
-    "tag": "v6.28.0"
+    "tag": "v6.28.1"
   },
   "ios": {
     "frameworks": [
diff --git a/Bugsnag/Payload/BugsnagNotifier.m b/Bugsnag/Payload/BugsnagNotifier.m
index e06375aa7..1ba1edb0e 100644
--- a/Bugsnag/Payload/BugsnagNotifier.m
+++ b/Bugsnag/Payload/BugsnagNotifier.m
@@ -23,7 +23,7 @@ - (instancetype)init {
 #else
         _name = @"Bugsnag Objective-C";
 #endif
-        _version = @"6.28.0";
+        _version = @"6.28.1";
         _url = @"https://github.com/bugsnag/bugsnag-cocoa";
         _dependencies = @[];
     }
diff --git a/BugsnagNetworkRequestPlugin.podspec.json b/BugsnagNetworkRequestPlugin.podspec.json
index 5cf9bfc7f..53d3b74b6 100644
--- a/BugsnagNetworkRequestPlugin.podspec.json
+++ b/BugsnagNetworkRequestPlugin.podspec.json
@@ -1,16 +1,16 @@
 {
   "name": "BugsnagNetworkRequestPlugin",
-  "version": "6.28.0",
+  "version": "6.28.1",
   "summary": "Network request monitoring support for Bugsnag.",
   "homepage": "https://bugsnag.com",
   "license": "MIT",
   "authors": {
     "Bugsnag": "notifiers@bugsnag.com"
   },
-  "readme": "https://raw.githubusercontent.com/bugsnag/bugsnag-cocoa/v6.28.0/BugsnagNetworkRequestPlugin/README.md",
+  "readme": "https://raw.githubusercontent.com/bugsnag/bugsnag-cocoa/v6.28.1/BugsnagNetworkRequestPlugin/README.md",
   "source": {
     "git": "https://github.com/bugsnag/bugsnag-cocoa.git",
-    "tag": "v6.28.0"
+    "tag": "v6.28.1"
   },
   "dependencies": {
     "Bugsnag": "~> 6.13"
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ff8f82670..f4edb9565 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,13 @@
 Changelog
 =========
 
-## TBD
+## 6.28.1 (2024-02-28)
 
 ### Bug fixes
 
+* Fix race condition crash when calling BugsnagSessionTracker.addRuntimeVersionInfo from another thread.
+  [1632](https://github.com/bugsnag/bugsnag-cocoa/pull/1632)
+
 * Fixed the issue causing PrivacyInfo collisions when using Cocoapods
   [1630](https://github.com/bugsnag/bugsnag-cocoa/pull/1630)
 
diff --git a/Framework/Info.plist b/Framework/Info.plist
index ec4764d29..7809220f0 100644
--- a/Framework/Info.plist
+++ b/Framework/Info.plist
@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>6.28.0</string>
+	<string>6.28.1</string>
 	<key>CFBundleVersion</key>
 	<string>1</string>
 </dict>
diff --git a/Tests/BugsnagTests/Info.plist b/Tests/BugsnagTests/Info.plist
index d05947470..762469f87 100644
--- a/Tests/BugsnagTests/Info.plist
+++ b/Tests/BugsnagTests/Info.plist
@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
 	<key>CFBundleShortVersionString</key>
-	<string>6.28.0</string>
+	<string>6.28.1</string>
 	<key>CFBundleVersion</key>
 	<string>1</string>
 </dict>
diff --git a/Tests/TestHost-iOS/Info.plist b/Tests/TestHost-iOS/Info.plist
index 273512018..bc6b3f582 100644
--- a/Tests/TestHost-iOS/Info.plist
+++ b/Tests/TestHost-iOS/Info.plist
@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
 	<key>CFBundleShortVersionString</key>
-	<string>6.28.0</string>
+	<string>6.28.1</string>
 	<key>CFBundleVersion</key>
 	<string>1</string>
 	<key>LSRequiresIPhoneOS</key>
diff --git a/VERSION b/VERSION
index 2ece8e17b..8993da977 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-6.28.0
+6.28.1