did you log in using admin right to start the real update ? Usually you have a reminder that only admin could log to make update

Sorry, now I feel really stupid. It's been awhile (V8.3.4) and I don't remember updating from admin (which I am logged in with admin rights).

Where in the admin area can I do this?

Usually, you just have to log in with admin right and it starts the upgrade. When it's finished you should have a quick resume popup and then all should be fine
I keep the original admin account with a specific password and remove admin right from my own account. A choice to be sure to do that properly

I have 2 admin accounts, and barely use them. I logged into both and I get the V8.3.5 popup update but no notice of any updates. Still at V8.3.4

Any way to force it?

Don't have that kind of problem. At least, did you have the notification of update on the log-in script telling "only admin can log"...

Stupid question but are you sure to have correctly overridden the previous installation on the same path on your server ? (it happened to be once, that's why I ask... Otherwise, you will have to ask for a ProjeQtor Team answer :pinch:

I guess you did not really overwrite existing files with new ones.
Maybe something went wrong during ftp transfer.
To be sure : open file projeqtor/tool/projeqtor.php
On line 56, you'll find current version of your code

$version = "V8.5.4";

I guess you'll read

$version = "V8.3.4";

OK, solved the problem. This install was intended for testing, so only had small amount of disk space allocated for it. It was near capacity and couldn't take the upload to apply. I increased disk space and working like a charm.