Bump cvxpy from 1.3.2 to 1.4.1 in /requirements

[dependabot]

Bumps cvxpy from 1.3.2 to 1.4.1.

Release notes

Sourced from cvxpy's releases.

v1.4.1

This is a patch release for 1.4. The patch includes fixes from several contributors:

@​goulart-paul Change conic solver preference order (#2259) @​maxschaller Include use_quad_obj in cache (#2262)

v1.4.0

This release is consistent with our semantic versioning guarantee. It comes packed with many new features, bug fixes, and performance improvements. This version of CVXPY supports Python 3.8 through 3.12, and is our first release that supports Python 3.12. While working on the next release, we continue to officially support CVXPY 1.3 and 1.4.

New features

• New atom: convolve
• New atom: mean
• New atom: outer
• New atom: ptp
• New atom: std
• New atom: var
• New atom: vec_to_upper_tri
• Adds methods to CVXPY expressions that are found on NumPy ndarrays such as .sum(), .max(), and .mean()
• New solver interface: PIQP
• Adds SDP support to the Clarabel interface
• Added support for OR-Tools 9.7
• Removed support for OR-Tools 9.4
• PowerConeND now supports extracting its dual variables
• reshape now supports using -1 as a dimension, with the same meaning it has in NumPy
• Indexing CVXPY expressions with floats now raises an appropriate error
• Clearer error messages for a number of common errors
• The perspective atom now supports s=0
• Performance improvements in the SCIPY backend
• Performance improvements in canonicalizing parameterized QPs
• Performance improvements for quadratic forms with sparse matrices
• Greater support for static typing

ECOS deprecation

CVXPY has used ECOS as the default solver for many years; however, it has known issues with performance and numerical stability in edge cases. Recently, a new solver, Clarabel, that improves the algorithm and implementation of ECOS has been under development.

In 1.5, CVXPY plans to start using Clarabel instead of ECOS by default for some categories of problems. In 1.6, we plan to no longer install ECOS as a CVXPY dependency. We have no plans to remove support for calling ECOS as a solver. As part of this transition, in 1.4 CVXPY will raise a warning whenever ECOS is called by default. We encourage you to try and use Clarabel instead, but if you're dependent on ECOS's exact behavior please explicitly specify it as a solver.

conv deprecation

The CVXPY atom conv is inconsistent with NumPy's convolve functions. We are deprecating it, but have no plans to remove it in the short term. We encourage all users to use the CVXPY atom convolve instead.

NonPos deprecation

The NonPos cone uses the opposite dual variable sign convention as the rest of the CVXPY cones and a constraint of NonPos(expr) is the same as a constraint on NonNeg(-expr). We are deprecating NonPos, but have no plans to remove it in the short term. We encourage users to switch to using NonNeg.

Contributors

This release would not have been possible without the contributions of many CVXPY users and developers. Across 29 contributors and 116 PRs, we would like to thank the following people for their contributions to this release (in alphabetical order):

... (truncated)

Commits

• 792e959 release 1.4.1
• 9c6dccb Patch 1.4.1 (#2261)
• 94ae9b0 Preps for 1.4.1
• 794f5e1 Releases v1.4.0
• 848992c Bumps version number in docs and updates procedures (#2254)
• 1e4eac0 Docs new atmos api reference (#2253)
• 48cb3db Longer time limit, only check for no error (#2249)
• 67811a8 Prep for 1.4 release (#2248)
• 808125d Support or-tools 9.7; drop 9.4 (#2251)
• fe88825 Fix type errors by editing argument type annotations for methods of Expressio...
• Additional commits viewable in compare view

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