It was removed without the replacement macro being fully baked, and a number of other things were changed at the same time. Rather than rewrite my stuff at every minor release, I moved on.
I haven’t tried, but are the variables properly captured in closures? LET should have “temporary” lexical scope, not “temporary” temporal/dynamic scope.
Nowadays it seems to work, but rewriting my code to catch up with today’s version (and cope with the other changes introduced over the last couple of years) is not something I’m interested in doing.
