Lightroom lets you easily merge photos into a breathtaking panorama and this features has been enhanced a lot in the latest version 6.4. There is a new setting added called ‘Boundry Warp’, which intelligently wraps the boundaries of merged panoramas to remove undesired areas of transparency.
Below is a post on the Lightroom journal blog that explains the case in detail.
Other Enhancements & Updates in Lightroom 6.4
With this new update, you can now choose a preferred desktop sync location for Lightroom on mobile images. When the sync process is completed, you can have Lightroom save them in a subfolder hierarchy conveniently formatted by the image date.
Lightroom & Photoshop integration has also been strengthened in this new update. Users can now place photos as Linked Smart Objects in Photoshop CC by dragging them from the Lightroom Library grid while the Option key is pressed down. The feature is current available only on Mac OS X.