molpopgen/fwdpy11: 0.20.0 alpha 0

0.20.0a0 New features {func}fwdpy11.DiploidPopulation.create_from_tskit now uses the generation field from top-level metadata to restore all times to their forward-in-time values. PR {pr}1129 Discrete demographic models are now managed by {class}fwdpy11.ForwardDemesGraph See {ref}here . PR {pr}1101 PR {pr}1103 PR {pr}1121 PR {pr}1123 PR {pr}1124 Add support for Python 3.11 PR {pr}1108 Allow suppressing of residual selfing. See {ref}here . PR {pr}1117 PR {pr}1118 Deprecations Deprecate use of {class}fwdpy11.Region for recombination PR {pr}1126 Breaking changes Drop support for Python 3.7 PR {pr}1108 Removed deprecated discrete demography API PR {pr}1101 PR {pr}1116 Documentation Give link to examples of lists of "gvalue" objects PR {pr}1127 Rewrite demes-related documentation PR {pr}112