Drop 32 bit support in OS X
Currently LÖVE for OS X is built and distributed as a combined 32- and 64-bit application. However, there are only a couple models of Intel-based Macs which cannot run 64 bit programs, and they're pretty ancient, relatively speaking.
Among the few people who use them, it's probably less likely that they will install new software, especially considering there have been two major OS X releases which require 64 bit support (three soon.)
Dropping 32 bit builds for OS X has a few upsides and downsides:
Application size is reduced. The OS X version of LÖVE is currently the largest by a fair margin, partly due to the fact that it's distributed as a combined 32- and 64-bit application.
(release) build times are halved, because it doesn't have to compile twice. This isn't such a big deal since it only affects the few people who build LÖVE for OS X.
- A few people will no longer be able to run the latest versions of LÖVE / LÖVE games.
There are a total of 5 different models of Intel-based Macs which can't run 64 bit programs: 1 Macbook, 1 Macbook Pro, 1 Mac Mini, and 2 iMacs. All were initially released in early- or mid-2006 (right after the switch from PPC to Intel), and all were obsoleted by newly released 64-bit compatible Macs later in the same year.
LÖVE already does not support any Mac released before 2006 (since their CPUs were based on the PowerPC architecture.)
There aren't really any gains for lovers or users aside from the reduced filesize, so I'm still kind of on the fence.