show latest successful update on “Update status” page

[sellout]

The Update status page has a lot of useful information about recent updates of various repositories.

However, I recently noticed the lack of updates on Repology for my packages in Hackage, so I started poking around to figure out what’s going on. E.g., for one of my packages, Yaya (on Repology), nixpkgs-unstable (which fetches from Hackage) is showing 0.6.2.0, while Hackage itself is showing 0.4.2.1.

I see on the Update status page that recent Hackage fetches have failed. Looking at the failures and poking around a bit, it seems like the last successful parse of Hackage may have been about two years ago. But, I can’t find that information on Repology.

Knowing exactly when/what was last parsed successfully would help me diagnose and fix the failure.

Relatedly, having the update information on the repository page (e.g., for Hackage) would also be helpful.