The fourth and potentially last beta of macOS Mojave 10.14.4 has been released today. It was first released to developers this morning and later this afternoon to those in the Apple Beta Program. The new build is 18E205e for those keeping score at home. If you have a Mac registered in the beta program, go to Settings>Software Update to check for the update and install it.
While macOS Mojave 10.14.4 is mostly focused on bug fixes, security updates, and performance improvements, there are some new features coming with the release. First, Apple News will be available to those in Canada after the release of 10.14.4. Canadians will be able to read articles in both English and French. Second, Touch ID support has been expanded in Safari in 10.14.4. Now you can use Touch ID to autofill fields in the browser.
Apple has not confirmed a release date for this update to macOS but it shouldn’t be much longer. Apple usually has four to five beta builds for these types of “dot” releases. Given most are expecting 10.14.4 before the end of this month, it is possible that this fourth beta will be the penultimate or last beta released.
Average Apple Guy, and Apple themselves, does not recommend installing beta OS builds on your production Macs. Any bugs in the code could cause degraded performance or data loss. It always best to install beta builds on non-product devices.