''<p>lastkevin [[#question-1508309|said]]</p>'' <blockquote>On my Desktop, I use Thunderbird Desktop Version 128.9.2esr [to access a gmail-account.] On my android phone, I use K-9 MAIL [to access the same gmail-account.] So, today I get an email from Mozilla talking about a advances/upgrades to Thunderbird. The email went to a video link... so I watched that... Is there a "new" Thunderbird App??? If yes, Can I just upgrade from my existing version 128.9.2esr... to the new Thunderbird?? Or, do I need to download a brand new Thunderbird app and install??? </blockquote> I am familiar with the newsletter. It should have pointed you to https://blog.thunderbird.net/2025/03/thunderbird-release-channel-update/ which has the instructions. ''<p>lastkevin [[#question-1508309|said]]</p>'' <blockquote>What about K-9 Mail?? Do I update the existing K(-Mail app to the new Thunderbird android App??? Or is this a new install??? Please help me understand what is going on with Mozilla and Thunderbird... </blockquote> The instructions for Thunderbird for Android is a new install from the play store. Instructions in the blog and knowledge base are at https://blog.thunderbird.net/2024/10/thunderbird-for-android-8-0-takes-flight/ and https://support.mozilla.org/en-US/kb/thunderbird-android-import respectively. ''<p>lastkevin [[#question-1508309|said]]</p>'' <blockquote>PS: Has Thunderbird been fixed so that I can access microsoft-email? I realize that microsoft is making it difficult to access email using 3rd party email clients... What is the status on this?? I look forward to your response, Thank you, Kevin </blockquote> If you mean support for Microsoft Exchange, this is not yet finished.