Re: Note: Update of Thunderbird past 91esr will make irreversible changes to profile (backup before update)

On 6/10/22 15:13, Peter Maffter wrote:

So simply making a backup of ~/.thunderbird and copying the content of ~/.thunderbird/<profile old>/* to ~/.thunderbird/<profile new>/. does not work anymore?

Thanks in advance PM

It will work fine, but after you start the new Tbird, you will not be able to go back to Tbird 91 using ~/.thunderbird/<profile new>/. -- David C. Rankin, J.D.,P.E.