diff --git a/CHANGELOG.md b/CHANGELOG.md
index 51bcd801e7..08c5c8090e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,11 +1,14 @@
-x.y.z Release notes (yyyy-MM-dd)
+3.19.1 Release notes (2019-10-17)
=============================================================
+
### Enhancements
+
* Improve performance of sync changeset integration. Transactions involving a
very large number of objects and cheap operations on each object are as much
as 20% faster.
### Fixed
+
* Fix a crash when a RLMArray/List of primitives was observed and then the
containing object was deleted before the first time that the background
notifier could run.
@@ -14,12 +17,10 @@ x.y.z Release notes (yyyy-MM-dd)
`TableInfoCache::get_table_info()`, with messages like "Assertion failed: info.object_id_index == 0 [3, 0]".
(Since 3.18.0, [#6268](https://github.com/realm/realm-cocoa/issues/6268) and [#6257](https://github.com/realm/realm-cocoa/issues/6257)).
-
-
### Compatibility
+
* File format: Generates Realms with format v9 (Reads and upgrades all previous formats)
* Realm Object Server: 3.21.0 or later.
-* APIs are backwards compatible with all previous releases in the 3.x.y series.
* Carthage release for Swift is built with Xcode 11.0.
### Internal
diff --git a/Package.swift b/Package.swift
index 4d663e60ac..f0850db24a 100644
--- a/Package.swift
+++ b/Package.swift
@@ -4,7 +4,7 @@ import PackageDescription
import Foundation
let coreVersionStr = "5.23.5"
-let cocoaVersionStr = "3.19.0"
+let cocoaVersionStr = "3.19.1"
let coreVersionPieces = coreVersionStr.split(separator: ".")
let cxxSettings: [CXXSetting] = [
diff --git a/Realm/Realm-Info.plist b/Realm/Realm-Info.plist
index bbd5880624..58b4bdb719 100644
--- a/Realm/Realm-Info.plist
+++ b/Realm/Realm-Info.plist
@@ -17,11 +17,11 @@
CFBundlePackageType
FMWK
CFBundleShortVersionString
- 3.19.0
+ 3.19.1
CFBundleSignature
????
CFBundleVersion
- 3.19.0
+ 3.19.1
NSHumanReadableCopyright
Copyright © 2014 Realm. All rights reserved.
NSPrincipalClass
diff --git a/dependencies.list b/dependencies.list
index cb75a9fc9d..a8bcea5e52 100644
--- a/dependencies.list
+++ b/dependencies.list
@@ -1,4 +1,4 @@
-VERSION=3.19.0
+VERSION=3.19.1
REALM_CORE_VERSION=5.23.5
REALM_SYNC_VERSION=4.7.11
REALM_OBJECT_SERVER_VERSION=3.21.1