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** New Features in MacTeX-2013 and TeX Live 2013 **

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MacTeX-2013 installs updated versions of the GUI applications that were already in MacTeX-2012.

MacTeX has optional packages to install two font collections (Latin Modern and TeX Gyre) in /Library/Fonts; these TeX fonts are already in TeX Live, but installing them in /Library/Fonts makes them available to standard Macintosh applications like Adobe Illustrator. By default, these fonts are not installed.

MacTeX installs the latest version of Ghostscript, 9.07, and an updated "Convert" from ImageMagick 6.8.3-3. These packages are self-contained; MacTeX installs no libraries in /usr/local/lib.

In prior years, MacTeX was provided as a zip file. The install package was rewritten last year using Apple's modern PackageMaker, so this year's MacTeX-2013.pkg is a flat file which doesn't have to be zipped for a server or unzipped after downloading. The package is signed so it can be installed on Mountain Lion.

TeX Live 2013

MacTeX-2013 installs a completely unmodified copy of the full TeX Live 2013 distribution. This is exactly the same distribution that runs on OS X, Windows, GNU/Linux, various BSD Unix systems, and other systems.

MacTeX-2013 contains two binary directories. The first, universal-darwin, contains 32 bit binaries for both Intel and PowerPC processors; these run on all Macs which have OS X 10.5 or later. The second, x86_64-darwin, contains 64 bit Intel binaries compiled on Snow Leopard; these programs run only on Intel machines which are 64 bit capable and are running Snow Leopard, Lion, or Mountain Lion, or higher. Our tests show that the 32 bit binaries run very fast on 64 bit machines, so most users won't notice the difference between these two sets of binaries. Since the 32 bit binaries run fine on Leopard, we had the luxury of compiling 64 bit binaries only for Snow Leopard, where we could use Apple's modern libraries.

For the first time in 2013, all programs in x86_64-darwin are 64 bit programs; in particular, XeTeX is now a 64 bit program.

For new features in TeX Live 2013, see The TeX Live Guide for TeX Live 2013. Here is a summary:

We'd like to call attention to three changes in TeX Live 2010 which remain important today: