In the past, end of support for a platform was not always very well defined with JUCE. Sometimes it was not officially supported but changes could be made to make it works. Depending to an arbitrary work/audience ratio. It was a bit annoying in my case when i was stucked to a MacOS 10.6 platform without a C++11 compiler. JUCE was broken all the time (for me), and i had to moan every week. Frankly it was a bit tedious (for me) and also i guess for the JUCE team (and also for other users that dislike the energy lost by the JUCE devs in such specific tasks). 