Ubuntu Trusty reaches EOL only in April 2019. But
chromium-browser package is several releases out-of-date, at least if we judge by version number. Namely, current version in Bionic is
69.0.3497.81-0ubuntu0.18.04.1, while in Trusty it's
This makes me wonder whether it can be considered secure.
I don't know of any security bugs fixed between these versions, but if there are any, does the version in Ubuntu Trusty have the patches backported? Or is it effectively abandoned for the remaining half a year of LTS life?
NOTE: unlike the other question proposed as duplicate target for this one, this question doesn't ask why, it asks whether outdated-version Chromium is still up-to-date security-wise.