Want to keep my LR current. I have LR 5.7 and CS6 extended.
Will this upgrade work with my 5+ year old iMac 27 (late 2009).
2.66 GHz Intel Core i5
8GB ram 1067 Mhz DDR3
ATI Radeon HD 4850
VRAM 512 mb
Will this be able to run either LR6 or LRcc? And if I upgrade to LRcc will my system become compromised with continuous upgrades?
Do the upgrades to photoshop and LR happen automatically or only when I click on program?
Here's the minimum system requirements. You need OSX 10.9 or higher. Adobe Photoshop Lightroom Help | Lightroom Graphics Processor Acceleration (GPU) Troubleshooting & FAQ For certain you will need to turn of the GPU acceleration with your graphics card.
LR6 is for purchase. LRCC is part of the Creative Cloud membership. LRCC allows mobile syncing, otherwise they are pretty much the same. Here's more info. Adobe Photoshop Lightroom Help | Serialize Lightroom CC trial to activate as Lightroom 6
Upgrades do not happen automatically if you sign up for Lightroom CC. Upgrade notices happen automatically within the Creative Cloud application, but you have to click to instal.