It has gone from the Info Box to make the layer button a little bigger.
Apparently Graphisoft research showed that it wasn't used very much and in 'cleaning' up the user interface felt there was better use for the space it took up.
It is still available in the menu or as a tool button or CTRL+SHIFT+T is the shortcut.
Personally I would rather have the extra space for the layer name (as they have done) seeing as it is available by 3 other methods.
I just wish it was an option in the info box settings (Work Environment) as I am sure others would rather it was still there.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11