I was told I should update to Mavericks (I'm currently using 10.6.8) but I'm worried my Photoshop CS4 and Lightroom 4 and Photo Mechanic won't work if I update. The programs were placed on my home computer by my former place of employment so I could work from home, now that place folded so I am not able to have them reinstalled with the disc. Any thoughts? suggestions?
Others may have differening opions, but I rarely upgrade my OS unless I get a new computer. There have been a lot of issues with Mavericks with older versions of PS, so do a search on Mavericks and CS4 to see what the issues are before you upgrade. I'm not a Mac person, but I believe that newer versions of PS will not run on anything less than 10.7.