chacha20 v0.10.0

[tarcieri]

Added

• rand_core v0.10 support (#333, #513)
• 64-bit counter support (#439)
• {get,set}_block_pos inherent methods (#516)
• AVX-512 backend - requires --cfg chacha20_avx512 to enable (#477)
• Inherent methods for RNG state (de)serialization (#541)

Changed

• Bump cipher from 0.4 to 0.5 - replaces generic-array with hybrid-array (#338, #521)
• Edition changed to 2024 and MSRV bumped to 1.85 (#397)
• Relax MSRV policy and allow MSRV bumps in patch releases
• Bump cpufeatures to v0.3 (#530)
• --cfg chacha20_backend="..." replaces previous chacha20_force* (#520)
  • chacha20_force_avx2 => chacha20_backend="avx2"
  • chacha20_force_avx512 => chacha20_backend="avx512"
  • chacha20_force_soft => chacha20_backend="soft"
  • chacha20_force_sse2 => chacha20_backend="sse2"

Removed

• chacha20_force_neon cfg attribute - now on-by-default for supported targets (#361)
• std feature (#397)
• Clone impls (#462)

[tarcieri]

cc @dhardy

[newpavlov]

I think it's worth to merge #535 before this.

[newpavlov]

BTW I think we forgot to add inherent methods for (de)serialization of RNG types as was discussed in rust-random/rand#1101.

[tarcieri]

Sounds like a purely additive change. I don't think it's worth blocking the release over

[newpavlov]

Yes, but I think it would be nice to make it part of this release. I could try to implement it tomorrow.

[dhardy]

Yes, this looks good to go.

[tarcieri]

Rebased on #541 with updated date