Two weeks ago we posted "PDL in Rust - A Native
Reimplementation of the Perl Data Language". At the time the
score was 45 tests, all green. That was enough to say "it compiles,
it runs, here is the arithmetic surface." It was not enough to say
"you can use this."

We are now on the second number. The current PDL implementation in pperl covers roughly 3,000 assertions end-to-end: about 1,400 on the Perl-facing connector side and about 1,600 on the engine side. As of this writing roughly 98% of the connector assertions match upstream PDL 2.103 exactly, and most of the remaining couple of dozen we already know why they fail. By the time you read this the numbers will have drifted a little in our favour - give or take - but the shape is the point, not the decimal.

Everything described below is shipping, today, at https://perl.petamem.com.