This release adds new functionality to create CZML update documents which contain only the changes from the previous state of a particular CZML client application. In complex Cesium applications which require large amounts of CZML to visualize a scene, the amount of data transmitted from server to client can be significantly reduced by sending only the CZML properties that have changed.
We've also made a number of smaller improvements and fixes in this release. We've added several new scalars to compute values such as grazing altitude, squint angle, and other values. Additionally, we now support PDTT version 2 files for terrain data.
For a complete listing of all of the bug fixes and improvements made in this release, check the What's New topic in the documentation (.NET / Java).