1.4.0

Major Enhancements

• added exemplary single sign-on
• enabled custom RMA approval rule
• based on IOM 4.3.3
• and more

What's Changed

• feat: partner devops by @A-Herold in #60
• feat: provide maven wrapper and adapt the setenv.sh script (#78282) by @A-Herold in #63
• feat: improve enhance the return process by @jlistemann-ish in #64
• feat: migrate to iom 4.2.1 by @Philipp-Borchert-ISH in #65
• feat: enable custom rma approval rule (#58) by @jlistemann-ish in #73
• feat: added single sign-on in the back office (#74) by @jlistemann-ish in #75
• feat: added readme by @jlistemann-ish in #86
• fix: tax rates are harmonized to storefront defaults (#82)
• fix: On return message 3 emails are created instead of just one #51 by @jlistemann-ish in #66
• chore: upgrade to IOM 4.3.0 (#70) by @jlistemann-ish in #71

Full Changelog: 1.3.1...1.4.0