The change-log clearly states that the app has been updated to bring support for Android 4.4.3 among other things. Check out the screenshot from Google Play below.
While the exact details about Android 4.4.3 might not be known, an alleged change-log for this Android version surfaced on the web recently. The change-log if accurate, suggests that Android 4.4.3 is going to be a minor Android update, which will bring bug-fixes and enhancements.
Android 4.4.3 is expected to be released for Nexus devices and Google Play edition devices in the coming days. The exact time-tablet is unclear at this point.

One reply on “Android 4.4.3 confirmed via Google app change-log”
For Moto X? Hope 4.4.3 revives the much talked about battery life as reviewed for Moto X prior to present version – KitKat 4.4.2.