I have Photoshop CS6. Paid the big bucks and shortly after the Photoshop CC came out with the tool "perspective warp". I know there is other ways to straighten buildings, however from what I see the tool (perspective warp) will work better and would like to get it without signing up for CC. Is there a way to get the tool as an update or such.
You can start a cloud subscription and install Photoshop CC or Photoshop CC 2014.
Also with regard to Photoshop the term "tool" usually means something that is represented in the Toolbox, everything else is not properly called a "tool".
No. You need Photoshop CC to have perspective warp.