Android Studio is the official IDE for Android development, and includes everything you need to build Android apps.
This page lists new features and improvements in the latest version in the stable channel, Android Studio Flamingo. You can download it here or update to it inside Android Studio by clicking Help > Check for updates(Android Studio > Check for updates on macOS)
To view the release notes for older versions of Android Studio, see Past releases.
For early access to upcoming features and improvements, see the Preview builds of Android Studio.
If you encounter problems in Android Studio, check the Known issues or Troubleshoot page.