It is there in the menu in the Standard work environment but not with the keyboard shortcut.
But the command has changed.
Used to be "Close".
Now there are two new commands "Close Window" and "Close Project".
So if you are using your old work environment then you will find the old "Close" command is missing.
You will need to amend your work environment to add it back in.
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