Updating Another Author's Add-On

[YelloDello]

Sorry if I missed this in my forum search: what is this site's policy on updating another author's work? (Is there a post somewhere outlining this policy?)

Thanks!

P.S. I'm asking because ins:junkyard hasn't been updated since the ESO 1.1.2 patch, which broke several features, and causes crashes to desktop. I've fixed these issues but I'm not sure how/if I should post my work.