Bump version: 5.2.5 → 5.2.6

Bumps version to 3.1.23 and updates Changelog

Set release date for 3.1.18

Sets the release date for 3.1.17

Also bump in README

Bumps version to 3.1.15 and updates Changelog

Bumps version to 3.1.14

flakes

Bumps version to 3.0.25

Set release-date for 3.1.12