As of today the issue shouldn't happen anymore.
It's a bit technical but I'll try to explain.
The "import" section of the repositories is dedicated to packages which are imported by Linux Mint and which do not exist upstream. These packages are given a priority of 500 which matches upstream and 3rd party repositories. So typically, this was the case with Thunderbird which didn't exist in Debian until recently and which was added/imported by Mint.
The "upstream" section of the repositories is dedicated to packages which are maintained by Linux Mint but which exist upstream. In technical jargon, these are "pinned" packages and their priority is 700.
For some reason Debian decided to rename icedove back into thunderbird, which resulted in that package name being provided both by betsy/import and jessie and to bump its version number using an epoch (i.e. from 45.8 to 1:45.
. This is why this icedove update suddenly disguised itself as being a newer thunderbird.
Since Debian now provides "thunderbird" we had to decide whether to just drop our version or to start pinning it. It's not clear how often this will be updated upstream so for now we're still maintaining it. Thunderbird is now provided via the "upstream" section of our repository with a priority of 700.
You can check which version you're using and which versions are available by typing:
As it is now you should be pointing at version 52.0.1~linuxmint1+betsy.
Check the versions of all your thunderbird packages with:
You should have a thunderbird package, and maybe one or two thunderbird l10n packages (translations for your languages).
If you're using the wrong version, you can "downgrade" these packages with:
Code: Select all
apt install thunderbird=52.0.1~linuxmint1+betsy thunderbird-l10n-en-gb=52.0.1~linuxmint1+betsy thunderbird-l10n-fr=52.0.1~linuxmint1+betsy
Note: In the command above, I assumed you had en-gb and fr l10n packages... replace these appropriately, you'll know which packages you have thanks to the dpkg command I posted.