Here are the latest updates for Mac OS X apps:

MaBaSoft (www.mabasoft.net) has announced World Clock Deluxe 4.9, an update to their world time utility for Mac OS X. The upgrade revises the appearance of the Clocks, Cities & Time Zones, and Time Converter panes and introduces several new Time Converter features.

Koingo Software (http://www.koingosw.com) has released MacPilot 5.0.4, an update of the tool that enables hidden features built into Mac OS X and lets users modify preferences to streamline performance. The new version is a maintenance release with some bug fixes.

Koingo has also revved Librarian Pro — which lets you manage your collection of books, magazines, games, CDs, software titles and movies — to version 2.2.4. Toolbars can now be customized again.

Simple Envelope (http://www.simpleenvelope.com) — an app for printing addresses on envelopes — has been upgraded to version 2.0.5. It fixes some glitches with Mac OS X 10.8 Mountain Lion.

SAGE (http://www.sagemath.org/index.html) — an open source mathematics software which creates a free alternative to Magma, Maple, Mathematica, and Matlab — is now up to version 5.5. It sports some performance enhancements.