Comment by freedomben

I absolutely share your frustration at breaking API changes, and the older I (and my software) gets, the more it irritates me. It can be downright enraging to have (my) perfectly working code suddenly broken due to an irrelevant (to me) API change, especially when it requires hunting down a ton of compiler errors. I absolutely wish they would prioritize stability more.

Now that said, I do not think the truth is "The maintainers seem to go out of their way to break API, for no reason at all" or "These are not thoughtful people, with a vision for the future. They are idiots that inherited something great (GTK 1), and have spent decades thoroughly fucking it up." Having worked on numerous long-lived APIs in the past, there is always a tension between backwards compatibility and future development, especially consistency between calls. Especially when there are a lot of different contributors, it's very easy for annoying inconsistencies to pop up, and it feels really great to fix those. It's a constant balancing act between the past and the future, and a tilt too far in one direction comes with some significant downsides. I also think some grace is warranted for people giving their code away freely with no expectation in return.