It’s interesting how many people became suddenly interested by Multi-Safari in the last few weeks. In the last few weeks, Apple released Mac OS X 10.5 Leopard, with Safari 3, and they released the 10.4.11 update to Tiger, also with Safari 3, leaving a lot of people wondering how to test websites under previous versions of Safari.
It seems the self-contained Safari applications works fine under Leopard… that is, unless you happend to update to Leopard 10.5.1, in which case you’ll get an error message telling you that this version of Safari doesn’t work on Leopard. I don’t have Leopard myself so I’m telling you this based on all the reports people have sent to me by email. More importantly, since I don’t have Leopard, I can’t investigate right now to find out what is causing this and see if there is a solution.
But having said that, it seems odd to me that suddenly, in a minor point release, an application stops working. Perhaps it’s trigging some security feature which wasn’t working in the early Leopard release, or perhaps Apple deliberately added a block for older versions of Safari (which would make some sense since in general running an older Safari on a newer system isn’t a so good idea). If someone has a clue, I’d like to hear it.
In the meanwhile, you’ll have to resort to using a Tiger (10.4) system to run Safari 2, or just refrain from updating to Leopard 10.5.1.