v4.3.0 (14 February 2022)

• Changed constants to static constexpr for efficiency, added Euler's Gamma constant. (#2478)
• Added lmultiply function that parallels multiply_log so that the language doesn't have to rename. (#2596)
• Cleaned up tests to include <CL/opencl.hpp> instead of <CL/cl2.hpp>. (#2610)
• Added missing implementations of that shadow the signatures of math functions in the std:: namespace. (#2612)
• Bugfix for the bug where 2x2 matrix exponential function outputs NaN for matrices with large eigenvalues. (#2616)
• Add compiler flag -D_BOOST_LGAMMA to allow users to force use of Boost lgamma implementation. (#2618)
• More informative error messages for ODE solvers. (#2620)
• Force linker to respect rpath set at compile time. (#2627)
• Upgraded Sundials to 6.0.0. (#2629)
• Added norm1() and norm2(). (#2636)
• Add missing von_mises_cdf_log and von_mises_ccdf_log signatures. (#2640)
• Refactored the DAE solver.(#2644)
• Added the inverse of the complementary error function - inv_erfc(). (#2645)
• Updated member functions for accessing tangents in scalar fvar types. (#2652)
• Added support for the new matrix type for GLM functions. (#2655)