The GNU Scientific Library (GSL) has continued to evolve with new releases, but specific recent feature additions are not detailed in the search results. However, here are some general updates and recent releases:

Recent Releases

• Version 2.8: Released in June 2024, this version includes updates and improvements, though specific new features are not detailed in the search results.

• Version 2.7: Released in June 2021, this version introduced new features and fixed several bugs, but the exact nature of these features is not specified in the search results.

• Version 2.6: Released in August 2019, this version included major performance improvements to common linear algebra matrix factorizations and numerous new features and bug fixes.

General Features

• Mathematical Routines: GSL provides a wide range of mathematical routines, including random number generators, special functions, least-squares fitting, and more.

• Linear Algebra and Eigensystems: It supports linear algebra operations and eigensystems, which are crucial for many scientific computing tasks.

• Numerical Integration and ODEs: GSL offers routines for numerical integration and solving ordinary differential equations, which are essential for modeling complex systems.

For detailed information on recent features, it would be best to consult the GSL NEWS file or documentation directly, as the search results do not provide specific details on new features added in recent versions.