Version 1.13.0

ADDED

- Add ZZ production with leptonic decays (both same and different flavors)
  ([!297](https://gitlab.com/spice-mc/pepper/-/merge_requests/297))

- Add convergence-based stopping criterion for phase-space optimization
  ([e3ad5d05](https://gitlab.com/spice-mc/pepper/-/commit/e3ad5d05de7af2fbdde57a91683e7693360605f5),
  [!304](https://gitlab.com/spice-mc/pepper/-/merge_requests/304))

- Add live per-batch progress output during phase-space optimization steps
  ([a81c2df8](https://gitlab.com/spice-mc/pepper/-/commit/a81c2df8bc0262ee22c23ff62ae1a85dd45188e4),
  [!306](https://gitlab.com/spice-mc/pepper/-/merge_requests/306))

- Document phase-space options and reading phase-space points from an HDF5 file
  ([8838f5ab](https://gitlab.com/spice-mc/pepper/-/commit/8838f5ab25381b7049bc9d9eea1be8a852e9e470),
  [!308](https://gitlab.com/spice-mc/pepper/-/merge_requests/308))

- Add diagnostic output if there might be problems
  when reading phase-space points from an HDF5 file
  ([d15b95fc](https://gitlab.com/spice-mc/pepper/-/commit/d15b95fcd545a6453dbee36b64ee330beba48912),
  [!308](https://gitlab.com/spice-mc/pepper/-/merge_requests/308))

- Add LHEF v3 keywords to LHEH5 format documentation
  ([0a37d8fa](https://gitlab.com/spice-mc/pepper/-/commit/0a37d8fac25b3e4209dff8a324ee634a4daa3fc5),
   [!300](https://gitlab.com/spice-mc/pepper/-/merge_requests/300))

- Make number of checked phase-space points in unit tests configurable
  ([e3cec607](https://gitlab.com/spice-mc/pepper/-/commit/e3cec6078ef886b8769c1371456a9e378c84aeed))

CHANGED

- Reproduce original random-number sequence when reading phase-space points
  to allow for an exact reproduction of the original run generating the points
  ([015a6cc3](https://gitlab.com/spice-mc/pepper/-/commit/015a6cc33d44fc62054281e52649321ee8eb8dac),
  [!308](https://gitlab.com/spice-mc/pepper/-/merge_requests/308))

- Always record number of random numbers per event
  ([0b5459f8](https://gitlab.com/spice-mc/pepper/-/commit/0b5459f8136a6630f28579c4fb21844f6cf6922d),
  [!308](https://gitlab.com/spice-mc/pepper/-/merge_requests/308))

- Read cache also for non-optimizable PS generators
  ([4eed03a5](https://gitlab.com/spice-mc/pepper/-/commit/4eed03a5aa4a29a59fcf1a31329b0cf56afb7716),
  [!308](https://gitlab.com/spice-mc/pepper/-/merge_requests/308))

- Use American spelling in Pepper's output
  ([!309](https://gitlab.com/spice-mc/pepper/-/merge_requests/309))

- Include original process ID in color factor reading log message
  ([731931bf](https://gitlab.com/spice-mc/pepper/-/commit/731931bf3ce4514d49638da52dedd7b2cca28f57),
  [!297](https://gitlab.com/spice-mc/pepper/-/merge_requests/297))

PERFORMANCE

- Share color factor files between flavor-relabeled processes
  ([f0fab251](https://gitlab.com/spice-mc/pepper/-/commit/f0fab251e891db1e63ae548be9f1f8109ac57d78),
  [!297](https://gitlab.com/spice-mc/pepper/-/merge_requests/297))

- Partition tests into levels and parallelize expensive unit tests
  ([769798bf](https://gitlab.com/spice-mc/pepper/-/commit/769798bf1ac0cbe16ac27dbd6eacae2ceded8b99),
  [!297](https://gitlab.com/spice-mc/pepper/-/merge_requests/297))