Add Xpress direct and persistent solver interfaces - #3987

Draft

XPRSc4v4 wants to merge 13 commits into

Commits on Jan 23, 2026

Merge branch 'main' of https://github.com/Pyomo/pyomo
XPRSc4v4
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d5d97a4

Commits on Apr 29, 2026

Merge remote-tracking branch 'upstream/main'
XPRSc4v4
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c9f9934

Commits on May 11, 2026

Merge branch 'main' of https://github.com/Pyomo/pyomo
XPRSc4v4
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2b56a8c

Commits on Jun 30, 2026

Txp 8774 nlp (#3)

XPRSc4v4
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claude
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d0d5a73
Merge upstream/main: add SCIP solver, NLP log test precision fix

XPRSc4v4
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claude
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732665f
Formatting last few additions that were left off
XPRSc4v4
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38f73d3

Commits on Jul 13, 2026

Import was happening unconditionally
mrmundt
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fbe1a83
Should import numpy from deps
mrmundt
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5c09bed
Remove hard numpy dep
mrmundt
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de8fab1

Commits on Jul 27, 2026

Commits on Jul 28, 2026

Remove dataclass import
XPRSc4v4
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b85b68e