# Recent Changes ## User-facing Changes For recent changes in lint's set of features affecting users of lint, see [](usage/changes.md.html). ## Lint API Changes For recent changes in lint's internals affecting authors of lint checks, see [](api-guide/changes.md.html). ## Documentation Changes 2021/07/12: Documentation for the testing infrastructure test modes 2021/06/02: Documentation for the data flow analyzer and Gradle DSL 2021/03/29: Various updates Added separate user and API guides, added a chapter on performance tuning, added a section on how to unpublish a lint check, and a few other edits here and there. 2021/03/15: Initial version.