In this two-part practical demonstration, I demonstrate the absolute basics of applying an ITX Fix Pack to installations on a Windows and then a Linux platform
This is not meant to serve as a comprehensive how-to, as the scope of such an undertaking would be too large.
Highlights
Make a backup (including export of launcher configuration)
Install the new product
Re-apply any customisations (including import of launcher configuration)
Copy deployments over (MSL files)
Test
Rollback if things go wrong