Release 1.51.x

[jfaltermeier]

What it does

Merge changes from 1.51 Release Branch

How to test

Release was built already from this branch, this just merges the version changes to main

Follow-ups

Review checklist

• [x] As an author, I have thoroughly tested my changes and carefully followed the review guidelines

Reminder for reviewers

• As a reviewer, I agree to behave in accordance with the review guidelines