The two big guns in Windows or Linux on Mac virtualisation released their yearly upgrades in the previous month. Parallels Desktop 9 includes support for Thunderbolt and FireWire devices, OS X’s PowerNap feature, the Mountain Lion Dictionary gesture, Windows 8.1, and more, all while boasting 40% better disk performance, 25% faster shutdowns, 20% faster suspending, and 3D graphics that’s 15% faster than in Parallels 8. You can buy/trial it and learn more at Parallels’ Desktop product site.
VMware Fusion 6, meanwhile, adds Dictation in Windows; support for up to 16 vCPUs, 8TB disks, and 64GB of RAM; a new user interface; improved Boot Camp support; multiple display support (in OS X Mavericks); Windows 8.1 support; and the usual host of performance improvements and minor feature additions. You can check out all its new features, and try it out, by visiting the VMware Fusion product page.
Nintendo Wii and Gamecube emulator Dolphin version 4.0 came out today. It’s the first stable release in nine months, bringing 2500 changes from Dolphin 3.5 — including a new look (and swanky new icon), beta support for the Wii official online multiplayer, Wii Balance Board and Gamecube Steering Wheel support, new audio emulation code, Fastmem support on OS X, an OpenGL video backend rewrite, and much more. You can get it from the Dolphin download page, while the announcement post is here.
After a long period (three years) without an official release, Sony PlayStation emulator PCSX-Reloaded has been updated to version 1.9.93 beta. People who’ve been using SpeedofMac/ConsoleEmu’s unofficial builds won’t notice much of a difference, but it’s a huge improvement over 1.9.92. See the release notes here for details.
Continue reading for additional updates, including new versions of Mednafen, Q-emuLator, zxsp, PPSSPP, and more.
Nintendo 64 emulator Mupen64Plus has been updated to version 2.0. This release improves all the plugin modules, notably adding support for video window resizing and six new joysticks. It also fixes emulation issues with a number of games, including Donkey Kong 64 and Ocarina of Time. 
After two years without an update, Eric Shepherd aka SheppyWare’s Sweet16 Apple IIgs emulator has seen a major new release and a subsequent minor update. Version 3.0 drops support for PowerPC Macs, implements drag-and-drop support between the Mac and Apple IIgs Finder, adds a bunch of long-overdue features, fixes loads of issues, and improves everything else. Check out the release notes for both this and the 3.0.1 update at the 
One year to the day after its previous release, Atari ST/STE/TT/Falcon emulator Hatari has been updated to version 1.7.0. This release adds an experimental MMU for the 68030 mode, improves accuracy in several areas, and makes a few other fixes. From a gaming perspective, 15 titles that previously had issues—including James Pond and Microprose Golf—should now work. The full release notes are included in the download (
NekoLauncher Mednafen, a frontend/launcher for multi-system emulator Mednafen, has been updated to version 0.9.29. As has Mednafen itself, courtesy of idyll and Weedy Weed Smoker. For the uninitiated, Mednafen handles Game Boy Advance, Virtual Boy, Super Nintendo, and several other classic systems with aplomb, and it’s also an excellent choice for Mac folks looking to emulate PlayStation games. You can 
Codeweavers released CrossOver 12 in mid-December. This version introduces an experimental new “Mac Driver” that removes the requirement for the X Window System (thereby making installation friendlier to casual users). CrossOver 12 also includes improvements to Wine and improved support for many applications. 
It’s been a long time coming, but ResidualVM finally has a stable release. ResidualVM is 
Nintendo Wii and Gamecube emulator Dolphin officially ticked over from 3.0 to 3.5 in December. This milestone rounds up work done over nearly 18 months, resulting in hundreds of nightly builds, and brings the “stable” codebase mostly up to date. You can get version 3.5 or the latest nightly builds from the 
After nearly a year without updates, PlayStation 2 emulator PCSX2 has received two new versions in a week. Version 0.9.6 was updated to perform better in OS X Lion. Then 0.9.7 Alpha was released a few days later. Zedr0n included side-by-side screenshot comparisons to showcase the visual improvements between 0.9.6 and 0.9.7. You can get it, and check out the screenshots, at the 
MacScene regular seanstar has released new software for the NES Power Glove—more than 20 years since the ill-fated contraption was mercilessly retired. NESGlovPhone lets you perform music in real-time, on an actual NES, using the Mattel Power Glove to interact with the NES sound chip. It offers a "reasonably intuitive musical interface" and multiple modes of interaction. 
Apple II emulator Virtual ][ has hit version 7.0. The new update provides full OS X Mountain Lion compatibility, improves accuracy of high-resolution colors, modernises the appearance of the main window, added the Bulgarian character set, and added the option to save a memory dump of the virtual machine to a file. Get it from the 
Boxer, a DOSBox-powered DOS emulator, has been updated to version 1.3. The 
Amiga emulator FS-UAE has been updated to version 1.2.1, fixing a crash that occurred when saving states with mounted directories. See the 
Parallels Desktop 6 for Mac is now available. The new version boasts enhanced performance, remote access via iPhone/iPad/iPod Touch, easier setup, up to 80% faster 3D graphics performance, and Surround Sound 5.1 support, amongst a wealth of other features. Check out the 
Java-based PSP emulator 
Quickfire updates have been released for DOSBOX front-end 
An alpha build has been released for Macintosh Plus emulator 
