There is no more need in size!.txt file

[MVV]

More than 10 years elapsed since TC 7.5x and no one today bothers that TC executable is not compressed with UPX, and any long-time TC user knows this fact w/o reading SIZE!.txt, so it is not required anymore.
I think you should add a note to HISTORY.TXT instead for the first TC version that wasn't packed with UPX, also you can add a help topic descibing this change and containing a link to https://www.ghisler.com/packed_download (it is interesting how many people still use packed version though).

[ghisler(Author)]

The only purpose of the size!.txt file is to provide a download link for the UPX-packed executable. Should I remove that too? Virus scanners really don't like it...

[white]

Maybe only add it on the Download page under Direct download (RECOMMENDED):
* UPX packed version of TOTALCMD.exe (32-bit) (Warning: Most virus scanners make launching them really slow)

[Sir_SiLvA]

The only purpose of the size!.txt file is to provide a download link for the UPX-packed executable. Should I remove that too?

On the contrary, its time to not only provide a 32bit but also a 64bit upx packed

[KozakMak]

Should I remove that too?

yep

[JOUBE]

The only purpose of the size!.txt file is to provide a download link for the UPX-packed executable. Should I remove that too? Virus scanners really don't like it...

The removal of size!.txt from the installation should then be mentioned in history.txt, if only to document this history. Not without reason was the packing of the exe for decades(!) a very important feature. Floppy disks...

[ghisler(Author)]

I will keep it one last time in TC 11 final and then remove it. Please remind me if I forget.