Release 6.1.0 (#1181)

* Add SCIPvarIsActive function and corresponding test for variable activity

* Add SCIPaggregateVars function and aggregateVars method for variable aggregation

* Add knapsack function for modeling the knapsack problem

* Add parameter settings to disable automatic presolvers and propagators in the knapsack model

* Add ShiftboundPresolver for variable domain transformation in SCIP

* Add tests for Shiftbound presolver with parametrised knapsack instances

* Update docstring in shiftbound.py to clarify presolver example and its functionality

* Add tests for Model.aggregateVars to verify aggregation functionality

* Add test for aggregation infeasibility in binary variables

* Remove Shiftbound presolver tests from test_shiftbound.py

* Refactor TODO comment in test_isActive to clarify missing test cases for fixed and aggregated variables

* Update CHANGELOG to include new features: isActive(), aggregateVars(), and example shiftbound.py

* Add tutorial for writing a custom presolver using PySCIPOpt

* Add tutorial for presolver plugin to CHANGELOG

* Apply suggestions from code review

Co-authored-by: Copilot <[email protected]>

* Apply suggestions from code review

* Clarify comments in the Shiftbound presolver example for better understanding of variable aggregation logic

* change file name

* wrap new methods and add tests

* slight changes in docs and example

* add missing method stubs for adjustedVarLb, adjustedVarUb, aggregateVars, isIntegral

* Address review comments on presolver PR

* Prepare release 6.1.0 for SCIP 10.0.1

* Fix deprecated license configuration in pyproject.toml

* correct scipoptsuite-deploy tag

* require more recent setuptools

* Make license dynamic to support older setuptools

---------

Co-authored-by: fvz185 <>
Co-authored-by: Copilot <[email protected]>
Co-authored-by: Mohammed Ghannam <[email protected]>

Author: 3 people

CHANGELOG.md

@@ -2,6 +2,13 @@
 
 ## Unreleased
 ### Added
+### Fixed
+### Changed
+### Removed
+
+## 6.1.0 - 2026.01.31
+### Added
+- Support for SCIP 10.0.1
 - Added automated script for generating type stubs
 - Include parameter names in type stubs
 - Added pre-commit hook for automatic stub regeneration (see `.pre-commit-config.yaml`)

docs/build.rst

@@ -21,6 +21,8 @@ To download SCIP please either use the pre-built SCIP Optimization Suite availab
 
     * - SCIP
       - PySCIPOpt
+    * - 10.0.1
+      - 6.1
     * - 10.0.0
       - 6.0
     * - 9.2

pyproject.toml

@@ -11,17 +11,15 @@ authors = [
 dependencies = ['numpy >=1.16.0']
 requires-python = ">=3.8"
 readme = "README.md"
-license = {text = "MIT License"}
 classifiers = [
     "Development Status :: 4 - Beta",
     "Intended Audience :: Education",
     "Intended Audience :: Science/Research",
-    "License :: OSI Approved :: MIT License",
     "Programming Language :: Cython",
     "Programming Language :: Python :: 3",
     "Topic :: Scientific/Engineering :: Mathematics",
 ]
-dynamic = ["version"]
+dynamic = ["version", "license"]
 
 [project.urls]
 Homepage = "https://github.com/SCIP-Interfaces/PySCIPOpt"
@@ -51,9 +49,9 @@ AARCH=$(uname -m)
 echo "------"
 echo $AARCH
 if [[ $AARCH == "aarch64" ]]; then
-    wget https://github.com/scipopt/scipoptsuite-deploy/releases/download/v0.10.0/libscip-linux-arm.zip -O scip.zip
+    wget https://github.com/scipopt/scipoptsuite-deploy/releases/download/v0.11.0/libscip-linux-arm.zip -O scip.zip
 else
-    wget https://github.com/scipopt/scipoptsuite-deploy/releases/download/v0.10.0/libscip-linux.zip -O scip.zip
+    wget https://github.com/scipopt/scipoptsuite-deploy/releases/download/v0.11.0/libscip-linux.zip -O scip.zip
 fi
 unzip scip.zip
 mv scip_install scip
@@ -67,10 +65,10 @@ before-all = '''
 #!/bin/bash
 brew install wget zlib gcc
 if [[ $CIBW_ARCHS == *"arm"* ]]; then
-    wget https://github.com/scipopt/scipoptsuite-deploy/releases/download/v0.10.0/libscip-macos-arm.zip -O scip.zip
+    wget https://github.com/scipopt/scipoptsuite-deploy/releases/download/v0.11.0/libscip-macos-arm.zip -O scip.zip
     export MACOSX_DEPLOYMENT_TARGET=14.0
 else
-    wget https://github.com/scipopt/scipoptsuite-deploy/releases/download/v0.10.0/libscip-macos-intel.zip -O scip.zip
+    wget https://github.com/scipopt/scipoptsuite-deploy/releases/download/v0.11.0/libscip-macos-intel.zip -O scip.zip
     export MACOSX_DEPLOYMENT_TARGET=14.0
 fi
 unzip scip.zip
@@ -96,7 +94,7 @@ repair-wheel-command = '''
 skip="pp* cp36* cp37*"
 before-all = [
     "choco install 7zip wget",
-    "wget https://github.com/scipopt/scipoptsuite-deploy/releases/download/v0.10.0/libscip-windows.zip -O scip.zip",
+    "wget https://github.com/scipopt/scipoptsuite-deploy/releases/download/v0.11.0/libscip-windows.zip -O scip.zip",
     "\"C:\\Program Files\\7-Zip\\7z.exe\" x \"scip.zip\" -o\"scip-test\"",
     "mv .\\scip-test\\scip_install .\\test",
     "mv .\\test .\\scip"

setup.py

@@ -133,7 +133,7 @@
 
 setup(
     name="PySCIPOpt",
-    version="6.0.0",
+    version="6.1.0",
     description="Python interface and modeling environment for SCIP",
     long_description=long_description,
     long_description_content_type="text/markdown",

src/pyscipopt/_version.py

@@ -1 +1 @@
-__version__: str = '6.0.0'
+__version__: str = '6.1.0'