It's updated now. This program isn't officially tracked by Arch, so all updates of the program must be made manually by us. I only check these programs for new versions when someone mentions it or every few months when I get intensely bored.
It's also entirely possible for the community to be proactive in updating packages we track in github from AUR. Forking the PKGBUILDs repo, making changes, and submitting a pull request on the new version is always welcome.