Looks like an interesting tool to port code to newer APIs... too bad this seems to be very much Java focused only.

Excellent answer, really loves how humble Ron Jeffries writings usually are. I like how he doesn't prescribe what to do, but instead describes what happens to him when he does something he shouldn't (or doesn't do something he should). He's definitely human and slips like us all.

Good primer on refactoring, I especially appreciate the big fat warning about language erosion... the number of times I hear "refactoring" for something which is not a refactoring at all...

Interesting musing on the skills required, why it's actually hard to apply them... clearly it's because you never find a real place to learn them so that ends up being on the job.

AST tooling is great for porting code and code quality checks. Here are a couple of examples in python.

Or why you should think twice before embarking into a refactoring when it's not directly related to some feature development...