Apple has moved to a 2 part release cycle it seams. This has been the case for a few years.Makes two of us! I lament the Apple of Steve Jobs where **** actually got done and was coherent.
Now available ...
Software Update Tool
Finding available software
Software Update found the following new or updated software:
* macOS 10.14.4 Update-
macOS 10.14.4 Update ( ), 2445300K [recommended] [restart]
Downloading and updating.