Adobe Lightroom 6/ Lightroom CC is now officially announced. You can find all the details on Adobe's website. The different desktop, web and mobile version can be downloaded here. The updated CC plans and pricing can be found here. The list of all supported cameras is here.
The stand alone LR6 version can also be purchased at Amazon, Adorama and B&H. B&H also has a special 12 months subscription price for Adobe Creative Cloud Photography Plan ($20 off).
Here is the direct link to download/upgrade the standalone version of Adobe Lightroom 6. It is doesn't work, try this one. The upgrade price from LR5 is $79.
Update #1 - Adobe also released Camera Raw 9 (download links: Mac| Windows).
Here is what's new in Lightroom CC:
Comparison between LR5, LR6 and LR CC can be found here:
The full press release from Adobe can be found here.
Lightroom CC tutorial videos:
System requirements:
Windows
Mac OS
* Dual-core processor recommended for HD or AVCHD video functionality.