> For the complete documentation index, see [llms.txt](https://docs.bluefletch.com/bluefletch-enterprise/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bluefletch.com/bluefletch-enterprise/product-guides/device-applications/launcher-upgrade-tool/release-notes.md).

# Release Notes

### Release 1.0.11

Released May 2026

#### Highlights

Initial release of the Launcher Upgrade Tool. This application automates the migration from Launcher 3 to Launcher 4 on BlueFletch-managed Android devices. It supports silent, programmatic initiation via MDM or ADB, validates device prerequisites before beginning, and provides real-time upgrade progress to the user. A foreground service keeps the upgrade process alive throughout the migration.

#### Details

* Added automated upgrade workflow to migrate devices from Launcher 3 (`com.bluefletch.launcher`) to Launcher 4 (`com.bluefletch.ems.emm.launcher`).
* Added support for silent/programmatic launch via MDM or ADB with no required user interaction.
* Added prerequisite checks before upgrade begins: network connectivity required, battery level must be above 50%, and no user may be logged in.
* Added APK download from a configurable URL with MD5 checksum validation to ensure integrity.
* Added real-time upgrade progress UI built with Jetpack Compose and Material 3, displaying per-step status (Pending / In Progress / Success / Failed).
* Added foreground service to maintain process priority and display a persistent notification throughout the upgrade.
* Added boot persistence via a `BroadcastReceiver` so that an interrupted upgrade automatically resumes after device reboot.
* Added support for an optional backoff delay passed as an Intent extra (`backoffDelayMinutes`) at launch time. This value represents how long to wait to retry the upgrade process when an attempt is made and runtime constraints are not met. Defaults to 5 minutes.
* Added BlueFletch Platform API integration for package installation, uninstallation, default launcher configuration, and permission management.


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