From upstream ChangeLog (http://www.freefem.org/ff++/ftp/INNOVATION):

• correct the problem with size of arrow in 2d plot
• correct stop test function in LinearGC
• correct bug in DG formulation
• function to put a stop test in LinearGC and NLGC
• add functional interface to arpack (Eigen Value) - see examples++-eigen/LapEigenValueFunc.edp for a true example
• re-add tan function for complex number
• correct a big mistake in LinearGMRES, the results are completely wrong
• add sqr functon of O. Pironneau
• correct mistake in examples++-3d/MeshSurface.idp about computation metric in function build Sphere surface mesh and add a function to build Ellipsoid surface mesh
• correct a bug the DG with periodic boundary condition with only one layer of element.
• add plugin "bfstream" to write and read in binary file (long, double, complex<double> and array) see bfstream.edp for an example
• add levelset integral on 3d case
• correct problem with Ipopt / lapack configure
• add BEC plugin of Bose-Einstein Optimisation
• standardisation movemesh3 -> movemesh (same parameters as 2d version)
• correct jump in basic integral to be compatible with varf definition jump is not zero on boundary, it is - boundary value