Deprecation and Removal
You should avoid using deprecated Public API and features. When migrating to a new version check for deprecated Public API and features and replace them with the successor API or feature. This will help you later when you migrate to a version in which the previously Public API or features are removed.
Deprecated Features
Deprecated features are documented on our Deprecation and Removal page
Deprecated Public API
Deprecated Public API are documented in our deprecated Public API page.