In the remained of the month, I looked at how best to support PHP 8.5's new pipes. Due to this, there is no intermediate value that you can look at in the debugger. I have created a patch for PHP which introduces intermediate steps which Xdebug can use with a patch to then visualise the values being send to the next pipe stage. Right now, this only works for non-closure-wrapped pipeline stages, and more work is necessary to make this work all nicely. There is some time before PHP 8.5 comes out though.