They are the same. It is the same app. They have announced that they will keep both K9 and Thunderbird in parallel, but the underlying program is the same - it will be only a cosmetic difference. This has to do with app IDs and user preferences, etc.
Here is the K9 Beta that is the same version as the new Thunderbird (beta) app. You are just switching from the beta back to the release.
On 13 June 2022, it was announced that K-9 Mail had been taken over by MZLA Technologies Corporation, a subsidiary of the Mozilla Foundation with current maintainer Christian Ketterer joining the team, and plans for K-9 Mail to be rebranded as Thunderbird for Android following the completion of a feature roadmap, including sync with Thunderbird on PC, integrating Thunderbird’s automated account setup system, message filtering, and improvements to folders.
Bit of a, bit of b. It is not yet. But the final version of Thunderbird will replace K9. So if you’re not happy with the beta, write an issue in their bug tracker.
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K9 is Thunderbird. You’ll be switching if you like it or not. If you want, write a bug report on the visibility issue.
Seems you didn’t even read my comment - but no, at least for the moment K-9 is not Thunderbird…
K9 has been Thunderbird for quite a while now. The name hasn’t changed yet officially, but the team has been incorporated a good while ago.
Not sure why people are downvoting you, you’re right.
Here’s the announcement from over 2 years ago.
They are the same. It is the same app. They have announced that they will keep both K9 and Thunderbird in parallel, but the underlying program is the same - it will be only a cosmetic difference. This has to do with app IDs and user preferences, etc.
Here is the K9 Beta that is the same version as the new Thunderbird (beta) app. You are just switching from the beta back to the release.
Edit: sorry link was missing: https://github.com/thunderbird/thunderbird-android/releases/tag/K9MAIL_8_0b1
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https://en.wikipedia.org/wiki/K-9_Mail
Bit of a, bit of b. It is not yet. But the final version of Thunderbird will replace K9. So if you’re not happy with the beta, write an issue in their bug tracker.
An old version or a fork though