Introduction

This document describes developer-level features that were introduced in different versions of watchOS. For each shipping release, this document provides links to “delta” reference documents, which list the new and changed programming interfaces that were introduced in that release.

Organization of This Document

This document includes the following articles:

watchOS 3.2 describes the new and updated features in watchOS 3.2.

watchOS 3.0 describes the new and updated features in watchOS 3.

watchOS 2.2 describes the new and updated features in watchOS 2.2.

watchOS 2.1 describes the new and updated features in watchOS 2.1.