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scip 1.10.0-4

• Fix compilation with LLVM 23’s libc++, reported by CRAN’s r-devel-linux-x86_64-fedora-clang check. libc++ 23 dropped many transitive includes in all language modes, exposing three headers that relied on them: <istream> in SoPlex’s basevectors.h and mpsinput.cpp, and <cstdlib> in SCIP’s multiprecision.hpp. Because basevectors.h is reached from soplex.h, the first of these broke every translation unit including SoPlex. No user-visible change.

scip 1.10.0-3

• Upgrade to SCIP 10.0.2, SoPlex 8.0.2, PaPILO 3.0.0.
• Enable OpenMP thread pool interface (TPI=omp) when the platform supports it, giving SCIP parallel branch-and-bound. Falls back gracefully to TPI=none when OpenMP is unavailable.
• Use SHLIB_OPENMP_CXXFLAGS in both PKG_CXXFLAGS and PKG_LIBS per R-exts §1.2.1.1.
• Drop all tinycthread patches (no longer compiled with TPI=omp/none). Reduces R-specific patch burden from 14 to 10 across submodules.

scip 1.10.0-1

• Switched build system from hand-maintained Makevars.in (472 lines) to CMake-based build at install time, following the highs R package pattern.
• Solver sources (SCIP, SoPlex) moved from src/ to inst/ and deleted after compilation when installing from tarball, reducing installed size from ~258 MB to ~10 MB.
• Version now tracks SCIP Optimization Suite (10.0.x).

scip 0.0.2

Initial CRAN submission.

• One-shot solver interface (scip_solve) and incremental model-building API (scip_model, scip_add_var, scip_add_linear_cons, scip_add_quadratic_cons, scip_add_sos1_cons, scip_add_sos2_cons, scip_add_indicator_cons).
• Solver control parameters (scip_control).
• Sparse matrix support (dgCMatrix, simple_triplet_matrix).
• Vignette with LP, MIP, quadratic, and indicator constraint examples.
• Builds on macOS, Linux, and Windows using vendored SCIP 10.0.1 and SoPlex 8.0.1 sources.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.