[NIGHTLY] v25.10.00

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• Development Branch
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🚨 Breaking Changes

• cuPDLPx (#388) @Kh4ster

🐛 Bug Fixes

• Hot fix 25.10 (#552) @hlinsen
• Fix handling zero sized array in case of presolve (#491) @rgsl888prabhu
• Fix issue with barrier incorrectly returning numerical in concurrent (#484) @chris-maes
• Gracefully handle OOM in Barrier (#483) @hlinsen
• Don't access free variables in the original problem on the folded problem (#477) @chris-maes
• [BUG] Fixed starting variable bounds for diving (#474) @nguidotti
• Fix an UMA on ns1952667 due to ignoring rank in factorize_basis when no singletons present (#470) @chris-maes
• Further CPUFJ assert and numerical fixes (#466) @aliceb-nv
• Disable TBB because of a bug in CliqueMerging presolver (#463) @rg20
• Barrier post-solve, find_dense_columns fix, folding fix (#462) @chris-maes
• Don't eliminate free variables in dual simplex (#457) @chris-maes
• More numerically robust CPUFJ feasibility checking (#454) @aliceb-nv
• Explicitely create new stream for Barrier concurrent (#453) @hlinsen
• Fixed delayed termination after timeout (#451) @nguidotti
• Fix compile and log (#450) @akifcorduk
• Short run fine tuning (#444) @aliceb-nv
• GF2 presolve infeasibility fix + CI occasional failure fix (#437) @aliceb-nv
• Fix variables out of bounds caused by CPUFJ LP scratch thread (#425) @aliceb-nv
• Fixed the maybe-uninitialized compilation error (#424) @nguidotti
• Fix linking errors in the test suite when disabling C adaptor (#420) @nguidotti
• Compute relative gap with respect to user objectives (#418) @rg20
• add http timeout values for general, send, and receive to client (#404) @tmckayus
• Fix bug in fixed_problem_computation (#403) @akifcorduk
• Remove limiting_resource_adaptor leftover (#398) @aliceb-nv
• Add support for cuda13 container and fix cuda13 lib issues in wheel (#379) @rgsl888prabhu
• Return Infeasible if the user problem contains crossing bounds (#361) @aliceb-nv
• Fix out-of-bound access in clean_up_infeasibilities. (#346) @legrosbuffle
• Skip downloading netlib data (#335) @rgsl888prabhu
• Don't remove empty columns with infinite bounds (#287) @chris-maes

📖 Documentation

• Update introduction to use engine instead of library (#536) @rgsl888prabhu
• Add default accuracy for each method in LP (#514) @rgsl888prabhu
• Release notes for v25.10 (#432) @cwilkinson76
• Add tutorial video links to docs (#416) @rgsl888prabhu
• Add warmstart, model update, update docs (#411) @Iroy30
• add docs on CI workflow inputs (#407) @jameslamb
• Add name to drop down for video link (#396) @rgsl888prabhu
• Add video link to the docs and Readme (#393) @rgsl888prabhu
• Add documentation on nightly installation commands (#367) @rgsl888prabhu
• Fix version in version tab, change log and fix typos (#267) @rgsl888prabhu

🚀 New Features

• Add optional timestamps enabled by env CUOPT_EXTRA_TIMESTAMPS (#392) @tmckayus
• cuPDLPx (#388) @Kh4ster
• QPS extension for MPS (#352) @Franc-Z
• Barrier method for LPs with cuDSS sparse Cholesky / LDLT on the GPU (#272) @chris-maes
• Add root node presolve using Papilo (#234) @hlinsen

🛠️ Improvements

• Switch to using papilo develop branch (#493) @rg20
• Fix return on size mismatch in Barrier (#489) @hlinsen
• Print scaling information about the user model (#488) @chris-maes
• Enable TBB and use fixed commit version (#481) @akifcorduk
• Barrier log fixes (#478) @chris-maes
• Remove raft-dask dependency (#475) @rgsl888prabhu
• Add setting to change the dual initial point used by barrier (#468) @chris-maes
• Add docs and example tests to barrier (#449) @rgsl888prabhu
• Enable green context in Barrier (#448) @hlinsen
• Remove left over kernels (#430) @akifcorduk
• Fix issue stemming because Rocky 8.10 is EOL and replaced by 8.11 (#427) @rgsl888prabhu
• Combine conda install for local and channel based artifacts into one env create call (#422) @rgsl888prabhu
• Integrate CliqueMerging presolver and tune presolver settings (#415) @rg20
• Enable miplib datasets which was disabled and also update README (#414) @rgsl888prabhu
• cuopt-server: update dependencies (drop httpx, add psutil) (#413) @jameslamb
• Parallel Branch-and-Bound (#412) @nguidotti
• build pure-Python wheels without waiting for dependencies (#409) @jameslamb
• avoid triggering nightly tests until builds are complete (#408) @jameslamb
• GF(2) presolve reduction for enlight_hard.mps (#406) @aliceb-nv
• CPUFJ for local search + simple rounding (#405) @aliceb-nv
• Add jump testing to nightly testing (#394) @rgsl888prabhu
• [FIX] Do not run compression tests when compression is disabled. (#389) @legrosbuffle
• Add sanitizer build option (#385) @akifcorduk
• Doc update for container version update and add nvidia-cuda-runtime as dependency (#384) @rgsl888prabhu
• Heuristic Improvements: balance between generation and improvement heuristics (#382) @akifcorduk
• Loosen presolve tolerance and update timers to report cumulative presolve/solve time (#381) @hlinsen
• CUDA 13 support: follow-ups (#377) @jameslamb
• Warn in case a dependent library is not found in libcuopt load (#375) @rgsl888prabhu
• Combined variable bounds (#372) @kaatish
• Enable parallelism for root node presolve (#371) @hlinsen
• Print cuOpt version / machine info before solving (#370) @aliceb-nv
• Implement node presolve (#368) @rg20
• Build and test with CUDA 13.0.0 (#366) @jameslamb
• Add Commit Sha to container for reference (#362) @rgsl888prabhu
• use GCC 14, consolidate dependency groups, update pre-commit hooks (#358) @jameslamb
• Decompression for .mps.gz and .mps.bz2 files (#357) @ahehn-nv
• Enable singleton stuffing and use papilo default params (#354) @hlinsen
• [FIX] Fix high GPU memory usage (#351) @aliceb-nv
• Adding support nightly cuopt-examples notebook testing (#342) @rgsl888prabhu
• Reduce hard-coded version usage in repo (#337) @rgsl888prabhu
• Make infeasibility checks consistent between the main solver and presolver (#326) @rg20
• Add read/write MPS and relaxation to python API (#323) @Iroy30
• Add maximization support for root node presolve (#322) @hlinsen
• Container to work on all different users including root (#321) @rgsl888prabhu
• Changes to download lp and milp dataset and also disable cvxpy testing for 3.10 (#317) @rgsl888prabhu
• Faster engine compile time (#316) @Kh4ster
• Performance tweak for dual_simplex/right_looking_lu (#315) @ahehn-nv
• Fix pre-commit for trailing whitespace and end of file (#306) @rgsl888prabhu
• Simple diving for Branch-and-Bound (#305) @nguidotti
• Bump libcuopt size to 775MiB (#303) @rgsl888prabhu
• Merge update version and fix version format bugs (#286) @rgsl888prabhu
• Support cuda 12.9 (#269) @rgsl888prabhu
• Adding actions to automate auto issue assignment and reminder on inactivity (#268) @rgsl888prabhu
• Sub-MIP recombiner and B&B global variable changes (#259) @akifcorduk
• FP as a local search (#258) @akifcorduk
• Update rapids-build-backend to 0.4.1 (#253) @KyleFromNVIDIA
• Branch 25.10 merge branch 25.08 (#251) @rgsl888prabhu