[chirp_users] Wrong version being reported under Ubuntu

Despite having accepted the latest update to Chirp via the Software Updater and verified under Synaptic Package Manager that the version of Chirp-daily installed is 20160116~wily~1, the About menu item reports CHIRP daily-20151023 and has done so for the most recent updates. I have completely removed and re-installed chirp-daily but still get the same old version on the About CHIRP pane.

Is there an image file on Ubuntu that I need to remove manually or is the updated version deficient in some way?

David