It's only possible to upgrade a standalone version of Lr from v4 to 5, and once you've paid the upgrade price, v5 is fully working and no more payment is necessary. If you wanted to go onto the Creative Cloud plan of Phtoshop plus Lightroom, this will need a totally new payment scheme monthly or yearly.
By the way, Lr version 6 will be released sometime soon, so it may be worthwhile waiting for it to come out, and upgrade directly from v4 to v6.
does upgrading from lightroom 4 to 5 generate a monthly fee?
No it does not unless you subscribe to the Adobe Creative Cloud Photography plan which includes both Lightroom and Photoshop.
You can buy a stand alone version of LR 5 from many different places/stores like B&H Photo/Video and even Amazon.
You pay the upgrade price, in the US it is $79, and no monthly fee is needed.
I have the standalone version. When I upgraded my system to Yosemite,
without notice several apps no longer work as they were upgraded. Worst of
all is Final Cut Pro was upgraded to a version 10.? Compressor, Parallel, V
Malware Fusion and Motion. I have a 2011 15" Macbook Pro. It doesn't have
in particular the correct graphic card, which I cannot find for this
computer. Is there a way to downgrade Final Cut Pro to what version or
open thru the terminal?
On Mon, Apr 20, 2015 at 4:08 AM, johnhawk666 <email@example.com>
The only thing we know about Lightroom 6 right now is that it requires a 64 bit operating system.