It appears the version of Helium Rain here on Itch is 1.3, but the version history page on your site lists several releases up to 1.3.7 (many including bug fixes). Additionally on github, the ‘release’ branch is 12 commits behind ‘master.’

Before I go building a binary for myself, is there any chance we can get the latest version published here?

As far as I can tell the itch release is 1.3.6 with .7 being a Steam specific update. None of the more recent change were ever released as they are community authored - 1.3.7 was the final version three years ago ! 

Feel free to build from sources though if you want to confirm.