There are 800 deprecated symbols in GTK 3. They were removed in GTK 4 because nobody upstream is willing to pay the cost to maintain them anymore. There is a re

There are 800 deprecated symbols in GTK 3. They were removed in GTK 4 because nobody upstream is willing to pay the cost to maintain them anymore. There is a real cost and typically this cost is that you have to commit to bugfixes and refactoring on the deprecated bits for the entire lifecycle of the new version, which is potentially many years. If the app developers aren't willing to pay the cost either, then you've got a hung jury situation.