TechTool Pro 6 is now available. I don't mind the upgrade fee but will it be compatible with Lion (OS 10.7) without having to pay another upgrade fee? I hesitate to buy it because I don't want to pay, yet again, in a few months when Lion is released. MMT3: Can you answer this?
Jon
macOS 11.7.10, iMac Retina 5K 27-inch, late 2014, 3.5 GHz Intel Core i5, 1 TB fusion drive, 16 GB RAM, Epson SureColor P600, Photoshop CC, Lightroom CC, MS Office 365
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