Update CONTRIBUTORS file.

This did not list the people who currently work most on ODL, but
did still describe Jonas and Holger as maintainers though they are
now too busy with other projects.

Author: leftaroundabout

CONTRIBUTORS.md

@@ -4,18 +4,21 @@ We are grateful for contributions and would like to acknowledge all people who h
 
 ## Contributors in alphabetic order
 
-* [Jonas Adler](https://github.com/adler-j). Package maintainer. Created much of the `Set`, `LinearSpace` and `Operator` structure including utilities. Has also contributed to most other submodules.
+* [Jonas Adler](https://github.com/adler-j). Former package maintainer. Created much of the `Set`, `LinearSpace` and `Operator` structure including utilities. Has also contributed to most other submodules.
 * [Sebastian Banert](https://github.com/sbanert). Contributions to `odl.solvers`.
 * [Chong Chen](https://github.com/chongchenmath). Started work on the `odl.deform` package.
 * [Matthias J. Ehrhardt](https://github.com/mehrhardt). Several contributions to `odl.solvers`, in addition to general bug fixes and improvements.
 * [Barbara Gris](https://github.com/bgris). Added `examples/solvers/find_optimal_parameters`.
 * [Johan Karlsson](https://github.com/hilding79). Contributions to `odl.solvers`.
-* [Holger Kohr](https://github.com/kohr-h). Package maintainer. Was part of the design of ODL and created several of the submodules, including `odl.discr`, `odl.trafos` and `odl.tomo`. Has contributed to most modules.
+* [Holger Kohr](https://github.com/kohr-h). Former package maintainer. Was part of the design of ODL and created several of the submodules, including `odl.discr`, `odl.trafos` and `odl.tomo`. Has contributed to most modules.
 * [Gregory R. Lee](https://github.com/grlee77). Bugfixes.
 * [Julian Moosmann](https://github.com/moosmann). Significant work on the initial `odl.tomo` module.
 * [Kati Niinimäki](https://github.com/niinimaki). Implemented the `WaveletTransform`.
 * [Willem Jan Palenstijn](https://github.com/wjp). Added adjoint of `RayTransform`.
 * [Axel Ringh](https://github.com/aringh). Created much of the `odl.solvers` module, in particular oversaw the addition of `Functional`.
+* [Jevgenija Rudzusika](https://github.com/JevgenijaAksjonova). Localised many problems in tomography and solvers, as well as active code review.
+* [Justus Sagemüller](https://github.com/leftaroundabout). Package maintainer since 2024. Compatibility fixes and ongoing work on PyTorch backend.
+* [Emilien Valat](https://github.com/Emvlt). Work on GPU interface between ODL, PyTorch and Astra, and various benchmarking.
 * [Olivier Verdier](https://github.com/olivierverdier). Typos.
 * [Gustav Zickert](https://github.com/zickert). Started the `odl.contrib.fom` package.
 * [Ozan Öktem](https://github.com/ozanoktem). Father of the project. Proposed the idea and made sure we had money to get it done!