Hello

 

I'm using 4.5.3 (free version) and want to know how to easily upgrade to 4.5.4?

Thanks

You replace two files on the flash drive: bzimage, bzroot,

 

If you are currently running unRAID Server 4.2-beta1 or higher (including 4.2.x 'final'), please copy the following files from the new release to the root of your Flash device:

    bzimage

    bzroot

That answer is really all you need to know, but for those who wish for a more complete answer, with links to various discussions, suggestions, and tips, see:

 

  "How do I upgrade the unRAID software?"

 

And release announcements usually include the upgrade instructions.