Audacity 64-bit for Mac?

Audacity Help Forum macOS
1

Running Mac OS 10.14.1, I get the message (approximately) “This app not updated …” I think this is Mac warning it’s going to 64-bit encoding at some rather vague time in the future. Does anyone know about Audacity plans?

2

https://forum.audacityteam.org/t/does-toneboosters-track-essentials-3-work-with-audacity-for-mac/51208/6