Migrate Flasher is now published on Google Play with improvements
https://play.google.com/store/apps/details?id=balti.migrate.flasher

Read the app description to know more.

[Android 11] Migrate 4.0 Gemini is now available for Migrate-NG users as BETA

To get the update, go to Preferences -> Select update channel -> Beta+stable

Then go back and check for updates.

Migrate-GPE users may try out the apk from here.

Feedback appreciated. If all goes well, it will be published on Google Play store soon.
Kindly take a nandroid backup before trying.

Migrate 4.0 is released on Google Play Store.

Download link (clear cache/storage of Google Play Store if still showing old version):

https://play.google.com/store/apps/details?id=balti.migrate

Changelog:

# Compatibility fixes for Android 11
# Add Message center to display important announcements.
# Migrate helper now allows to retry failed apk installs
# Add a "Migrate flasher only" backup option
# Save app icons as png files
# Show number of apps selected for backup in Extra backups screen
# Keep screen on when calculating backup size
# Save last state of selection in extras
# Don't remount /data partition in system test
# Many under the hood changes

Also released on AndroidFileHost and XDA labs. Get it using the note #download

Important info for Migrate-NG beta users: there is a bug in the downloader causing it to crash. You will need to manually download the apk and install. Available on XDA labs / AFH

The biggest problem in pushing the next version update of Migrate is Scoped Storage.
Read the problems of it here: https://www.xda-developers.com/android-q-storage-access-framework-scoped-storage/

More explanation from a programming standpoint:
========================
While designing the app, I had never thought that Google will deprecate such a basic thing like Java File. Migrate extensively relies on it and moving from File to a Uri based approach would be a huge trouble. As migrate uses shell scripts, hence raw file paths are absolutely necessary.

Hence I set out to write a library that eases the transformation process. Meet FileX.
https://github.com/SayantanRC/FileX

This library uses DocumentsContract in background, handles all the Uri related stuff and provides familiar functions and fields like mkdirs(), createNewFile(), copyRecursively() etc.

This is an open source library, it is nowhere near stable, but if anyone wants, they can give it a try in their apps. Constructive feedback is welcome.
========================

How does it impact the users?
========================
1. If the FileX library works as intended, Migrate should get native support to backup on SD cards and USB OTG drives.

2. Backups will be much slower than before. It is because Scoped Storage is inherently slow. Depending on ROMs, it may even be more unstable than before; have to wait and see how it plays out...

3. Since Migrate-NG is not distributed via Google Play store, it will continue to offer the current default backup method (under [Internal storage]/Migrate) along with FileX (best of both worlds). Migrate-GPE however, has to target Android 11 and above (blame Google), hence using FileX will be the only option.
========================

🎉 Migrate is back from the dead. A new version v6 is approved by Google.

https://play.google.com/store/apps/details?id=balti.migrate

#️⃣ The app has been completely rewritten. There are changes to the vision of the project moving forward - including support for non-root users and license changes. Currently the app is incomplete but you can do basic things like backup and restore of contacts, call logs and SMS.

⛔ Some features removed like backup zip creation and TWRP support. App backup and other backups which required root access, are not yet available but will be added in a future release.

🔮 New features are being planned like calendar backup and scheduled backups.

Please read the whole release notes at - https://github.com/BaltiApps/Migrate-OSS/releases/tag/v6.0.1

New update - v6.0.2

- Show selection count for each type of backup/ restore
- Settings screen added
- Settings - toggle of light / dark mode
- Settings - toggle app colors - classic theme / system colors
- App icon in About dialog
- Bug fix in restore selection

https://play.google.com/store/apps/details?id=balti.migrate

New Migrate update - v6.1.0

The biggest feature update is addition of application and data backup and restore for rooted users.

Feedback appreciated.

https://play.google.com/store/apps/details?id=balti.migrate

New Update - v6.2.1

- Backup and restore external data. [root feature]
- Clearer description of checkboxes for app backup and restore. [root feature]
- Support the project through in-app purchase.

https://play.google.com/store/apps/details?id=balti.migrate

New Update - v6.2.3

- Fix bug preventing restore on non-rooted devices.
- Fix bug preventing the default location (Download/Migrate) from being used.

https://play.google.com/store/apps/details?id=balti.migrate
https://github.com/BaltiApps/Migrate-OSS/releases/tag/v6.2.3

New Update - v6.3.0

- Small non-obtrusive banner ads are added. Any donation level removes all ads.
- minor notification fix.

https://play.google.com/store/apps/details?id=balti.migrate
https://github.com/BaltiApps/Migrate-OSS/releases/tag/v6.3.0