I use the offline installer from https://www.avast.com/download-software as I have limited internet and a number of virtual machines to update.
The free offline installer seems to be stuck on version 2360 and when I download and install I’m told there is a new program version do install and I have to do it online.
Is the offline installer no longer being updated with the latest build?
Try the direct link to the avast free offline installer from this topic https://forum.avast.com/index.php?topic=225874.0.
The direct links on this page should always be pointing at the latest avast version (or automatically redirect) for all products and both on-line and off-line installation files.
Thank you
The direct link did give me the latest version 
You’re welcome.