When Piwik tells me that there is a new beta available and I click on the Changes link it takes me to the non-beta release notes page, which doesn’t seem to hold any information related to the release in question.
There are no release note for the beta unfortunately. We should remove the link to the changelog if it’s confusing. do you mind suggesting this in a new issue on our tracker at: Issues · matomo-org/piwik · GitHub ?