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@rozbb rozbb released this 14 Dec 20:18
· 864 commits to main since this release
4.0.0-pre.5
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curve25519-dalek is a library providing group operations on the Edwards and
Montgomery forms of Curve25519, and on the prime-order Ristretto group.

Breaking changes in 4.0.0

  • Update the MSRV from 1.41 to 1.56.1
  • Update backend selection to be more automatic
  • Remove std feature flag
  • Remove nightly feature flag
  • Make digest an optional feature
  • Make rand_core an optional feature
  • Replace methods Scalar::{zero, one} with constants Scalar::{ZERO, ONE}
  • Scalar::from_canonical_bytes now returns CtOption
  • Scalar::is_canonical now returns Choice
  • Deprecate EdwardsPoint::hash_from_bytes and rename it
    EdwardsPoint::nonspec_map_to_curve
  • Require including a new trait, use curve25519_dalek::traits::BasepointTable
    whenever using EdwardsBasepointTable or RistrettoBasepointTable

This release also does a lot of dependency updates and relaxations to unblock upstream build issues.

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