Why did my layout switch to Cards from table when I upgraded to Thunderbird 139.0?

[gerardr]

I've never chosen a Cards View, but when I upgraded to Thunderbird 139.0 today, I had to scramble around to return my view to the trusty table.  What happened? Can it be fixed before to many others hit this? I'm running on an up-to-date Arch Linux distribution under XFCE4.

[wsmwk]

Thanks for reporting this.  The bug report is at Bug 1968963 - Table View changed to Card View on upgrade 138->139. My inbox changed so that each mes...

@Gerard, did you update from 138?  Or some other version?

[gerardr]

Yes, from version 138.0.2.

[siffemcon]

Problem found with versioning, not with the code. Should be fixed very soon.