1. PHP REQUIREMENT LINK : https://freshrss.github.io/FreshRSS/en/admins/02_Prerequisites.html (1.21.0 onwards requires  PHP 7.2+)
2. We created blank "applied_migrations.txt" file because install redirect's to installation if not created.
3. Keep default Authentication Method in manual installation.
4. Select mysql in 'Type of database' while manual installation
5. We have downloaded the package from github since 1.25.0 hence copied /data/favicons/********.txt file. Check in next version.
6. UPGRADE NOTES: https://freshrss.github.io/FreshRSS/en/admins/04_Updating.html
Only incremental upgrade(1.17.x to 1.18.x, 1.18.x to 1.19.x and so on..) is supported by the script so whenever a major version releases, change the min_version in info.xml