Commands that mix host executables and marcel operators work better now. It used to be the case that a host executable's output would be buffered until the executable ends its output. This made it difficult to monitor long-running host executables. Now, this buffering does not happen.
The marcel equivalent of the `find` executable is `ls -R`. But ignoring that: Previous, if you ran `find /` from marcel, the `find` would run completely, buffering the output, and then marcel would print the buffer's contents. Now you see output immediately.