TGIF folks, FYI - I discovered by accident yesterday in this article that the algorithm used by the Random class has changed. Historically it has used the Knuth subtractive algorithm, which is old and respected, and reasonably simple. It holds its internal state in a seeded int[56] array (I don't know how it scores on cruel tests like BigCrush).

It's been replaced with one of the set of new xoroshiro algorithms, which I didn't know about until yesterday. The code is so short that you can't believe they actually work and produce results that pass tests that even some of the famous ones like Mersenne Twister can fail. I'm just amazed by the brevity and quality (C code links top-right).

ILSpy shows how Random has been completely rejigged to use the new algorithm or fallback to the internal Net5CompatDerivedImpl class.

Greg K