<a href="/pkg/math/rand/v2/#PCG"><code>PCG</code></a>.
ChaCha8 is a new, cryptographically strong random number generator
roughly similar to PCG in efficiency.
ChaCha8 is the algorithm used for the top-level functions in <code>math/rand/v2</code>.
As of Go 1.22, <code>math/rand</code>'s top-level functions (when not explicitly seeded)
and the Go runtime also use ChaCha8 for randomness.
</ul>

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