I have noticed that if I upgrade to 9.1.002 from 9.0.*, keeping existing configuration, Kodi fails after reboot due to
vfs.sftp addon missing libcrypto.so.1.0.0.
The installation reboots in safe mode, where I could reinstall the addon and it worked with the new version (using libcrypto.so.1.1). I then moved the new addon to the default configuration:
mv /.kodi_FAILED/addons/vfs.sftp /storage/bkp; cp -a /.kodi/addons/vfs.sftp ./.kodi_FAILED/addons
Everything appears to be functional after reboot.
I contributed this trivial solution here to aid any unfortunates. Should LibreElec be able to handle addons with upgrades smoothly even in alpha releases?
Thanks for a great pre-release,