diff --git a/apollo-ios-codegen/Sources/CodegenCLI/Constants.swift b/apollo-ios-codegen/Sources/CodegenCLI/Constants.swift
index 8b8aba968..da9bedfd4 100644
--- a/apollo-ios-codegen/Sources/CodegenCLI/Constants.swift
+++ b/apollo-ios-codegen/Sources/CodegenCLI/Constants.swift
@@ -1,6 +1,6 @@
 import Foundation
 
 public enum Constants {
-  public static let CLIVersion: String = "1.15.2"
+  public static let CLIVersion: String = "1.15.3"
   static let defaultFilePath: String = "./apollo-codegen-config.json"
 }
diff --git a/apollo-ios/CHANGELOG.md b/apollo-ios/CHANGELOG.md
index 267f94432..6cfb83284 100644
--- a/apollo-ios/CHANGELOG.md
+++ b/apollo-ios/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Change Log
 
+## v1.15.3
+
+### Improvements
+- **Stable sort schema types for SchemaMetadata ([#514](https://github.com/apollographql/apollo-ios-dev/pull/514)):** _Thank you to [@asmundg](https://github.com/asmundg) for the contribution._
+
+### Fixed
+- **Fix multipart delimter boundary parsing ([#502](https://github.com/apollographql/apollo-ios-dev/pull/502)):** The multipart message parsing code was not splitting message chunks at the correct boundary when the dash boundary was present in the message body.
+- **Fix Websocket error broadcast for unsubscribed ID ([#506](https://github.com/apollographql/apollo-ios-dev/pull/506))** Only broadcast an error to all subscribers if there was no id field in the message.
+- **Fix bug with `AnyHashable` coercion for non-iOS platforms ([#517](https://github.com/apollographql/apollo-ios-dev/pull/517)):** Extended the _AnyHashableCanBeCoerced check to include macOS, watchOS, and tvOS with their respective minimum versions. _Thank you to [@VMLe](https://github.com/VMLe) for the fix._
+- **Fix assigning websocket callback queue before connecting ([#529](https://github.com/apollographql/apollo-ios-dev/pull/529)):** Fixed a race condition with the callback queue assignment during an unstable connection.
+- **Fix `GraphQLOperation` hash uniqueness ([#530](https://github.com/apollographql/apollo-ios-dev/pull/530)):** Adding uniqueness to GraphQLOperation hashing.
+
 ## v1.15.2
 
 ### Improvements
diff --git a/apollo-ios/CLI/apollo-ios-cli.tar.gz b/apollo-ios/CLI/apollo-ios-cli.tar.gz
index 656e6be83..5f50865c9 100644
Binary files a/apollo-ios/CLI/apollo-ios-cli.tar.gz and b/apollo-ios/CLI/apollo-ios-cli.tar.gz differ
diff --git a/apollo-ios/Sources/Apollo/Constants.swift b/apollo-ios/Sources/Apollo/Constants.swift
index 6469fe553..9e8b1beeb 100644
--- a/apollo-ios/Sources/Apollo/Constants.swift
+++ b/apollo-ios/Sources/Apollo/Constants.swift
@@ -1,5 +1,5 @@
 import Foundation
 
 public enum Constants {
-    public static let ApolloVersion: String = "1.15.2"
+    public static let ApolloVersion: String = "1.15.3"
 }
diff --git a/docs/docc/Apollo.doccarchive/data/documentation/apolloapi/graphqloperation/operationtype-14lsi.json b/docs/docc/Apollo.doccarchive/data/documentation/apolloapi/graphqloperation/operationtype-14lsi.json
index a6392fb7c..fd8e881ae 100644
--- a/docs/docc/Apollo.doccarchive/data/documentation/apolloapi/graphqloperation/operationtype-14lsi.json
+++ b/docs/docc/Apollo.doccarchive/data/documentation/apolloapi/graphqloperation/operationtype-14lsi.json
@@ -2,9 +2,9 @@
   "defaultImplementationsSections" : [
     {
       "identifiers" : [
+        "doc:\/\/ApolloAPI\/documentation\/ApolloAPI\/GraphQLOperation\/operationType-370r3",
         "doc:\/\/ApolloAPI\/documentation\/ApolloAPI\/GraphQLOperation\/operationType-5e63x",
-        "doc:\/\/ApolloAPI\/documentation\/ApolloAPI\/GraphQLOperation\/operationType-90ybj",
-        "doc:\/\/ApolloAPI\/documentation\/ApolloAPI\/GraphQLOperation\/operationType-370r3"
+        "doc:\/\/ApolloAPI\/documentation\/ApolloAPI\/GraphQLOperation\/operationType-90ybj"
       ],
       "title" : "GraphQLOperation Implementations"
     }