When the auto-update mechanism hits an error, the springboard still offers to update

[joerick]

FWIW, this is the error in the console:

Traceback (most recent call last):
  File "/usr/bin/tbupgrade", line 119, in main
    latest_version, deb_url = get_latest_version_info()
  File "/usr/bin/tbupgrade", line 42, in get_latest_version_info
    assert deb_url is not None, 'Deb file not found on latest Github release'
AssertionError: Deb file not found on latest Github release
tbupgrade: Checking installed version...
tbupgrade:   Installed version: 0.5.0
tbupgrade: Checking latest version on Github...

Deb file not found on latest Github release


tbupgrade: Upgrade failed.

(looks like my fault! 😣)