Summary: If you try to use some of the gametest framework components that were mentioned in the changelog like dimension.test is a example thats no where to be found in the gametest framework command or documentation.
Steps to Reproduce:
Step 1: Look at Changelog for Betas.
Step 2: Test Gametest Command in World for the Properties in Changelog.
Step 3: Repeat.
Observed Result: Gametest Framework is Missing Components from Changelog.
Expected Result: Gametest Framework shouldn't be Missing Components from Changelog
Confirmed: Can Confirm Now After Looking at Gametest API in Behavior Pack.