I don't visit these forums often, but in case there are any macOS users lurking about, I wanted to inform you that I have a beta version of 2.10 on macOS available for download here:
https://asmaloney.com/software/
2.10 includes a lot of changes, fixes, and updates from the last year.
One of the things I've been asked for most frequently is E57 support on macOS. You will find it in 2.10...
Please report any issues through GitHub.
CloudCompare 2.10 beta for macOS
Re: CloudCompare 2.10 beta for macOS
Thanks Andy, I'll updated the download page accordingly!
Daniel, CloudCompare admin