Early 2017, I updated the GNU gradebook (Ggradebook), to version 0.92.
This was more than 16 years after the previous release.
Among other things, migrated from GTK+ 1.2 to GTK+ 3.18.

The software is available here, the ChangeLog here.

Unfortunately, there's just 0.91 at GNU's Savannah and FTP:
- While I did get access to Savannah, my multiple requests to become project member were ignored.
- Also, while at first GNU webmasters updated the official project page to at least link to 0.92 on my website (proof), this was reverted roughly September 2019. The reversion took place right after I had published a letter in support of Stallman.
So, now basically nobody knows there's a new version of the GNU gradebook.

Another project I updated after more than 17 years is my gtkgo.