v4.6.0 (20 April 2023)

• Updated to Eigen 3.4 (#2583)
• operands_and_partials expanded to accept 8 parameters. (#2833)
• Added new multidimensional integration routine hcubature. (#2838)
• Added eigenvalues and eigenvectors overloads which accept matrices with complex values. (#2846)
• Allowed Sundials to be linked to separately installed version. (#2861)
• Fixed is_nan to compile under the Microsoft compiler suite. (#2870)
• Fixed csr_to_dense_matrix to work in case of matrix with empty first row. (#2877)
• Fixed a bug where eigenvalues_sym would return a matrix with a dynamic number of rows equal to 1, rather than a vector. (#2884)
• Updated eigenvalues_sym return type for RcppEigen compatibility. (#2887)
• Various testing improvements. (#2832, #2864, #2869, #2878, #2880)
• Fixed an issue with building TBB on gcc 13. (#2890)