diff --git a/docs/cuopt/source/release-notes.rst b/docs/cuopt/source/release-notes.rst index 6443782d8..e01866f7c 100644 --- a/docs/cuopt/source/release-notes.rst +++ b/docs/cuopt/source/release-notes.rst @@ -2,6 +2,93 @@ Release Notes ===================== +==================== +Release Notes 25.10 +==================== + +New Features (25.10) +-------------------- + +- New barrier method for solving LPs. Uses cuDSS for sparse Cholesky / LDT. +- Concurrent mode for LPs now uses PDLP, dual simplex, and barrier +- New PDLP solver mode Stable3. +- MIP presolve using Papilo (enabled by default). LP presolve using Papilo (optional). +- Parallel branch and bound on the CPU: multiple best-first search and diving threads + +Breaking Changes (25.10) +------------------------ + +- New PDLP Solver mode Stable3 is the default + + +Improvements (25.10) +-------------------- + +- Add setting "CUOPT_BARRIER_DUAL_INITIAL_POINT" to change the dual initial point used by barrier +- CPUFJ for local search + simple rounding +- FP as a local search +- Sub-MIP recombiner and B&B global variable changes +- Implement GF(2) presolve reduction +- Implement node presolve +- CUDA 13/12.9 support +- Build and test with CUDA 13.0.0 +- Add read/write MPS and relaxation to python API +- Decompression for ``.mps.gz`` and ``.mps.bz2`` files +- Enable parallelism for root node presolve +- Enable singleton stuffing and use Papilo default params +- Make infeasibility checks consistent between the main solver and presolver +- Add maximization support for root node presolve +- Performance improvement in dual simplex's right-looking LU factorization +- Fix high GPU memory usage +- Print cuOpt version / machine info before solving +- ``cuopt-server``: update dependencies (drop httpx, add psutil) +- Add nightly testing of cuOpt jump interface +- Compression tests are not run when compression is disabled +- Add sanitizer build option- Heuristic Improvements: balance between generation and improvement heuristics +- Loosen presolve tolerance and update timers to report cumulative presolve/solve time +- Warn in case a dependent library is not found in libcuopt load +- Combined variable bounds +- Add Commit Sha to container for reference +- use GCC 14, consolidate dependency groups, update pre-commit hooks +- Add support for nightly ``cuopt-examples`` notebook testing +- Reduce hard-coded version usage in repo +- Container to work on all different users including root +- Changes to download LP and MILP datasets, and also disable cvxpy testing for 3.10 +- Faster engine compile time +- Fix pre-commit for trailing whitespace and end of file +- Merge update version and fix version format bugs +- This library now supports the QPS format, which is an extension of the standard MPS format for representing quadratic programming problems. + + +Bug Fixes (25.10) +----------------- + +- Fix variables out of bounds caused by CPUFJ LP scratch thread +- Fix the maybe-uninitialized compilation error +- Fix linking errors in the test suite when disabling C adaptor +- Compute relative gap with respect to user objectives +- Add http timeout values for general, send, and receive to client +- Fix bug in ``fixed_problem_computation`` +- Remove ``limiting_resource_adaptor`` leftover +- Add support for cuda13 container and fix cuda13 lib issues in wheel +- Return Infeasible if the user problem contains crossing bounds +- Fix out-of-bound access in ``clean_up_infeasibilities`` +- Empty columns with infinite bounds are not removed + + +Documentation (25.10) +--------------------- + +- Add tutorial video links to Decompression +- Add warmstart, model update, update docs +- add docs on CI workflow inputs +- Add name to drop-down for video link +- Add video link to the docs and to the Readme +- Add documentation on nightly installation commands +- Fix version in version tab, change log, and fix typos +- Doc update for container version update, and add ``nvidia-cuda-runtime`` as a dependency + + ==================== Release Notes 25.08 ====================