In case you’ve not spotted it, WordPress 4.2.3, has been released – and it contains two important security fixes, stopping privileged but non-admin users from upgrading to admin level without permission, and stopping any logged-in user from creating draft posts. And there is the usual collection of bug-fixes; full info here.
For most users, WordPress should automatically update itself within a few hours; but, you may want to check just to be sure, especially if you have non-admin users. UpdraftPlus.Com has been running WordPress 4.2.3 since about an hour after its release, and all has been going well since then!
David (founder, lead developer, UpdraftPlus)