This major release introduces many new features and bug fixes.
The most noteworthy new features are the addition of thread safety for many parts, the inclusion of the DSST semi-analytical propagator together with the new unified propagators architecture, the support for IERS 2010 conventions, Jacobians availability for all force models and greatly improved performance and ability for gravity fields force model.
Users are strongly advised to upgrade to this version, which depends on version 3.2 of Apache Commons Math, despite several incompatibilities with respect to previous versions 5.x.
News summary