Warning: There are reports that “Reanalyze button in the Upright Lens Correction area doesn’t work. Adobe appears to have screwed it up in 5.2RC and not fixed it in the final release”. It might be smart to hold off on installing this version.
Lightroom 5.2 beta has been available for a couple of months, but today Adobe released the final version of 5.2. It’s got a couple of nice improvements.
To down this free update just go to the help menu and click on “Check for update..”
The official Adobe update page is here, but I like Laura Shoe’s YouTube video explanation of the update and her blog post that explains the update.
By the way, if you also have Photoshop CS6 you will want to update your Camera RAW to 8.2 so it’s using the same version as Lightroom 5.2 uses.

Started out doing photography at the age of 6 using an uncle's old 1940 kodak brownie box camera. At 15 years of age, I decided to buy my very own 1975 Praktica SLR camera. I now shoot with a Nikon D850. I do unpaid TFP and commercial paid work.