Is there an issue with Mailspring package pipeline?

I am using Mailsrping as my mail client and I love it.
Lately though, it keeps popping up a message saying that it is updated, but doesn’t seem CachyOS gets the latest version.
I did my own digging and in the AUR, there is a new version, 1.21.1, where mine is 1.19.0 and I know there were few in between.

Is there a problem with this package’s pipeline?
Is there something I could help?
At first I though the maintainer was late to do the build, but it turned out AUR is updated, CachyOS is not.