Bump mip from 1.16rc0 to 1.17.2 in /dao

[dependabot]

Bumps mip from 1.16rc0 to 1.17.2.

Release notes

Sourced from mip's releases.

Python MIP 1.17

python-mip 1.17 Released 🎉

HiGHS is now a supported solver

python-mip 1.17 ships with full support for HiGHS — a high-performance, open-source LP/MIP solver with an MIT licence. HiGHS joins CBC and Gurobi as a first-class backend. It supports LP and MIP solve, warm-starting for LP re-solves, and the full python-mip constraint/variable API.

HiGHS binaries are distributed via highsbox, installed automatically as an optional dependency:

pip install mip[highs]

This work was led primarily by Robert Schwarz, with contributions from Túlio Toffolo, Adeel Khan, Bernard Zweers, and Miguel Hisojo. The integration spanned many months of careful incremental work — thank you all!

CBC binary distribution via cbcbox

Historically, pre-built CBC binaries lived directly in the python-mip repository, requiring a full python-mip release for every CBC update and manual cross-platform builds.

With 1.17, CBC binary distribution is fully decoupled into cbcbox, a dedicated companion package with pre-built wheels for:

• Linux x86_64 and aarch64
• macOS x86_64 and arm64 (Apple Silicon, native — no Rosetta!)
• Windows x64

cbcbox is installed automatically. The same architecture applies to HiGHS via highsbox.

Automated releases via GitHub Actions

Publishing a new version of python-mip to PyPI is now as simple as:

git tag v1.17.1 && git push --tags

A GitHub Actions workflow using OIDC Trusted Publisher handles building and uploading to PyPI with no API tokens to manage.

Python 3.10–3.13 + PyPy 3.11; minimum raised to 3.10

python-mip now officially supports Python 3.10, 3.11, 3.12, 3.13 and PyPy 3.11, tested

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Changelog

Sourced from mip's changelog.

Changelog — python-mip 1.17

Changes since 1.15.0 (1.16 was an unreleased RC)

---

New Features

HiGHS Solver Support

python-mip now ships with full support for the HiGHS open-source solver as a first-class backend (alongside CBC and Gurobi). HiGHS is a high-performance solver for LP and MIP problems with a permissive MIT licence.

Key capabilities added:

• Full LP and MIP solve via HiGHS C API (through highsbox)
• Warm-start (basis handoff) for LP re-solves
• relax=True support in optimize()
• Variable and constraint inspection/modification
• Correct handling of UNBOUNDED vs INFEASIBLE status
• Reduced memory footprint and improved file read/write consistency

HiGHS is installed as an optional dependency: pip install mip[highs].

macOS Apple Silicon (M1/M2/M3) Native Support

CBC now runs natively on Apple Silicon via a pre-built ARM64 binary, replacing the previous Rosetta 2 x86_64 fallback.

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Infrastructure & Distribution

CBC Binaries via cbcbox

The bundled CBC shared libraries (.so, .dylib, .dll) have been removed from the python-mip source tree. CBC binaries are now distributed through the cbcbox PyPI package, which provides pre-built wheels for:

• Linux x86_64 and aarch64 (ARM64)
• macOS x86_64 and arm64
• Windows x64

cbcbox is a dedicated package whose sole job is to ship up-to-date CBC binaries for all major platforms. This decoupling means future CBC upgrades are released without touching python-mip itself. The minimum required version is cbcbox>=2.902.

Automated PyPI Publishing

A new GitHub Actions workflow (.github/workflows/publish.yml) automatically publishes to PyPI whenever a v* tag is pushed. It uses OIDC Trusted Publisher authentication — no API tokens to rotate.

Modernised CI Matrix

... (truncated)

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[dependabot]

Superseded by #584.