We’re excited to announce that the Linux - 2021.09 build stack with the new SDK 30 tools & Java 11 support for Gradle and the macOS - 2021.09 which has the latest Xcode 13 for iOS 15 support will be tagged as the Latest build stacks in Appflow from today.
This would automatically update any automation that you have set to “always use the latest build stack”. If you would like to use a different build stack you must manually choose from the build stack dropdown when performing a build or setting up (or editing) the automation. Refer to our docs on Build Stacks in Automations.
Note that, a build stack would be tagged as the Latest, once a new build stack is available in Appflow to help you target the latest Android and iOS releases.