I just updated Vagrant to the latest (2.2.8). As usual after an update, I then needed to update or reinstall my Vagrant plugins. All worked fine except vagrant-trellis-cert, which failed with this error:
vagrant-trellis-cert requires Ruby version ~> 2.4.2. The current ruby version is 2.6.6.146.
Unfortunately, I don’t understand where that ruby version is even coming from. My brew-installed ruby is 2.7.1p83, and my system-installed (macOS Catalina 10.15.4) ruby is 2.6.3p62.
Thanks for the repo link. I’ll start an issue there.
Your suspicions must have been correct! I didn’t realize Vagrant bundled Ruby, but I uninstalled and downgraded to the Vagrant version I had previously (2.2.6) and the plugin installed without issue.