Like a lot of photographers, I use Adobe Photoshop. It’s not my main tool – the excellent Lightroom does most of the tweaking I need – but there are some jobs for which a full on editing application is essential. As it’s quite an expensive bit of software, I tend not to buy every release – I’ve more or less fallen into a pattern of buying upgrades for alternate versions. Most recently, I went from CS3 to CS5, and I’d more than likely have skipped CS6 and waited for CS7, unless there was some really compelling feature in CS6. Adobe have allowed upgrades from at least two versions back, so that’s been fine.
But according to the well informed Scott Kelby, it appears that Adobe have decided that to upgrade to the forthcoming CS6, you’ll need to have CS5 or CS5.5. If you have CS4, and were expecting to be able to upgrade to CS6, you’re going to be out of luck, unless you upgrade to CS5 first, and effectively pay twice what you might have been expecting.
As Scott points out in his Open Letter to Adobe Systems, this is a wee bit naughty – the rules have been changed without prior warning, which is not a good way to treat your customers.
If you’re a Photoshop user, I recommend you read Scott’s letter. I’m sure there will be a lot more to follow on this subject…
 The slightly upgraded version that came with the last suite releases