I have a Mac with OS X v10.9 (mavericks) - which download version should I use - LibreOffice 4.2.5 for Mac OS X (Intel) or LibreOffice 4.2.5 for Mac OS X (x86_64 10.8 or newer required)?
I’m running Mavericks and I installed the x86_64 version, on the basis that it is a 64-bit version running on a 64-bit operating system. Haven’t had any problems.
To add to this answer, the “Intel” version is for x86 32bit systems, while the “x86_64” is for x86 64bit systems i.e., more recent Macs.