Daniel Pepper

@jnak : any initial thoughts on adding AssociationProxy support?

nice simplifications! in a similar vein, what do you think of swapping `return nil if ...` for `return if ...` ?

I'm a big fan of cleanups and simplifications! Ruby 2.6 and Rails 5 can definitely go. I'm more on the fence about Ruby 2.7 can we add the constraint to...

@TonyCTHsu : thanks for your support! Here's a [draft PR](https://github.com/DataDog/dd-trace-rb/pull/2847) for how HTTP connection tracing could be implemented

@amatsuda mind taking a look?