---
title: macOS Catalina 10.15.3 Release Notes
framework: macos-release-notes
role: article
role_heading: Article
path: macos-release-notes/macos-catalina-10_15_3-release-notes
---

# macOS Catalina 10.15.3 Release Notes

Update your apps to use new features, and test your apps against API changes.

## Overview

Overview The macOS 10.15.3 SDK provides support for developing apps for Macs running macOS Catalina 10.15.3. The SDK comes bundled with Xcode 11.3 available from the Mac App Store. For information on the compatibility requirements for Xcode 11.3, see Xcode 11.3 Release Notes. General Known Issues UI tests using the XCTest framework are currently unable to interact with embedded web views (UIWebView, WKWebView, SFSafariViewController and ASWebAuthenticationSession) inside of apps. (58576627)

## See Also

### macOS 10.15

- [macOS Catalina 10.15.6 Release Notes](macos-release-notes/macos-catalina-10_15_6-release-notes.md)
- [macOS Catalina 10.15.5 Release Notes](macos-release-notes/macos-catalina-10_15_5-release-notes.md)
- [macOS Catalina 10.15.4 Release Notes](macos-release-notes/macos-catalina-10_15_4-release-notes.md)
- [macOS Catalina 10.15.2 Release Notes](macos-release-notes/macos-catalina-10_15_2-release-notes.md)
- [macOS Catalina 10.15.1 Release Notes](macos-release-notes/macos-catalina-10_15_1-release-notes.md)
- [macOS Catalina 10.15 Release Notes](macos-release-notes/macos-catalina-10_15-release-notes.md)