You can get it here, however please try to update MacJournal from within the application by using the MacJournal or Help menu to Check for Updates.
This beta is pretty small. I decided to do it to test a new version of Sparkle in the last update and some build environment changes in this release. There is also a long-in-the-making data loss fix that is also in this release. I expect the final release to have no additional changes and be out some time next week.