Added

• Vector Forward Mode: Added support for a vector forward mode, where multiple derivatives can be calculated at once (#177, @xcelerit-team)
• Vector Adjoint Mode: Added support for a vector adjoint mode, where derivatives w.r.t. multiple outputs can be calculated jointly with AAD (#177, @xcelerit-team)
• Direct Mode: Added a mode for forward and reverse mode without expression templates, to ease integration and debugging (#177, @xcelerit-team)
• Added std::fma Function: Added support for the standard math function std::fma (#175, @xcelerit-team)
• Eigen Compatibility: Added support and a wide range of tests for using XAD within the Eigen Library (#174, @xcelerit-team)
• Jacobian Performance Optimisation: Faster discovery of Jacobian co-domain (#163)
• Improved CI/CD Pipelines: Modern compilers, better tests, Windows fixes (#164), and further improvements (#177, @xcelerit-team)

Removed

• Support for Visual Studio 2015 and 2017 (toolchains 14.0 and 14.1)
• Support for GCC 5 and 6

Fixed

• libc++ type trait fixes: Fixes for libc++ (MacOS) for random number type traits (#170)
• copysign function in MSVC: fixed issues with the copysign function with the latest MSVC (#166)
• Improved testing of chunk containers: The clear is now tested better (#157, by @rghouzra)

Full Changelog: v1.7.0...v1.8.0