  The SCIP Optimization Suite provides a collection of software packages for
mathematical optimization centered around the constraint integer programming
framework SCIP. This paper discusses enhancements and extensions contained in
version 8.0 of the SCIP Optimization Suite. Major updates in SCIP include
improvements in symmetry handling and decomposition algorithms, new cutting
planes, a new plugin type for cut selection, and a complete rework of the way
nonlinear constraints are handled. Additionally, SCIP 8.0 now supports
interfaces for Julia as well as Matlab. Further, UG now includes a unified
framework to parallelize all solvers, a utility to analyze computational
experiments has been added to GCG, dual solutions can be postsolved by PaPILO,
new heuristics and presolving methods were added to SCIP-SDP, and additional
problem classes and major performance improvements are available in SCIP-Jack.
