Designer John Hicks post about this:
https://mastodon.social/@jonhicks/110424132785208582
> It's inevitable that throughout my career, I've watched as work gets replaced and updated by others. It's rare to be asked to redesign old work, which is why I leapt at the chance when @thunderbird asked if I could design a contemporary update to the Thunderbird logo. The one I designed 19 years ago!
More images here: https://drive.google.com/file/d/1lRkSA9YyHduCmDe2Fucv2DK2l9a...
Based on that file being "v7" I'm really hoping John does a post detailing the design process. I always love to see how these things evolve.