I'm on an older imac on SnowLeopard and didn't upgrade as was happy with the OS and heard there were bugs with Lion etc.
I didn't realise Mavericks was going to disappear from the app store. I'm not sure if many of my apps like CS5 are going to be compatible with Yosemite, and I only have 4GB of RAM.
Is there any way to get mavericks now? Or am I too late?