v4.7.0

MixedModels v4.7.0

NEWS file.
Diff since v4.6.4

NB: Closed issues and pull requests are sorted temporally and so may
include backports to other versions or work in the development branch for
an upcoming breaking release. Please see the NEWS file
for changes sorted by release.
Closed issues:

• Rank deficiency tests fail on nightly with Apple Silicon (#600)
• LoadError: PosDefException: matrix is not positive definite; Cholesky factorization failed (#611)
• export StatsModels.AbstractContrasts (#620)
• Predict: Response column must be initialized to a non-missing numeric value (#626)

Merged pull requests:

• attempt rescaling of poorly scaled problems (#615) (@palday)
• fix dependent column test on Apple silicon (#622) (@palday)
• Create docs-cleanup.yml (#624) (@palday)
• loosen type restriction on filename for optsum serialization and rename arg (#628) (@palday)