[FBumann]

Prompt: Then prepare the release pr

Note

The following content was generated by AI.

This PR releases 0.11.0. It renames ## Upcoming version to ## 0.11.0 (2026-10-31), puts the two breaks on top, groups the five lines, and adds a new empty ## Upcoming version above the release. The version is minor because #2065 and #2075 break model files and the xpress extra.

Checks and what is not done

• python -m tools.changelog check says "releases 0.11.0 on merge". python -m tools.changelog notes 0.11.0 prints the section.
• Since v0.10.0, main holds fix(engine): a variable times a summed parameter, such as p * sum(load, over=snapshot), builds without running out of memory #2059, feat!: specsolve requires mathspec 0.4.0, where a file names a reusable condition under conditions: rather than masks: and an ordering comparison on a text label is refused at load #2065, fix!: a model solves on Xpress 10, and the xpress extra requires Xpress 9.8 or later #2075, fix(engine): a parameter filled with its declared value builds the same model every time #2053, test: a fuzzer checks random models on both lanes, runs in CI against a baseline, and keeps what it found as strict xfails #2050, fix(engine): models that crashed, were refused or were built unlike the file now build as written #2051 and chore(engine): the engine calls each additive part of an expression a linear, quadratic or constant term rather than a piece #2061. test: a fuzzer checks random models on both lanes, runs in CI against a baseline, and keeps what it found as strict xfails #2050 (test) and chore(engine): the engine calls each additive part of an expression a linear, quadratic or constant term rather than a piece #2061 (chore) owe no line. chore(engine): the engine calls each additive part of an expression a linear, quadratic or constant term rather than a piece #2061 merged after this branch was cut, and it does not touch CHANGELOG.md, so the release takes it in without a change here.
• The empty ## Upcoming version follows the 0.10.0 release (chore: release 0.10.0 #2058).
• CodSpeed reports test_read[commitment-s] memory at 220.7 KB → 684.3 KB against 582e5c1. This PR changes only CHANGELOG.md, so the change is on main between 582e5c1 and 603606c. It was not traced.
• Merging tags v0.11.0 and publishes to PyPI after a reviewer approves the pypi environment. So this PR is left for you to merge.

🤖 Generated with Claude Code

https://claude.ai/code/session_018B3nA4oeSor7jjZ4vwux1G

[coderabbitai]

No actionable comments were generated in the recent review.

Recent review info

Run configuration

• Source mode: Auto
• Repository: Unavailable
• Branch: Unavailable
• File: No configuration file from this repository applied
• Commit: Unavailable
• Layers: defaults
• Review profile: CHILL
• Plan: Advanced
• Run ID: 6f8bffd2-1599-40d3-af94-19543466bcf0

Commits

Reviewing files that changed from the base of the PR and between 603606c and 27564ec.

Files selected for processing: 1

• CHANGELOG.md

Included review availability: This review used your included allowance. Your plan provides up to 10 included reviews per hour; 6 remain after this review.

Walkthrough

The changelog adds release notes for 0.11.0. It describes mathspec 0.4.0 language changes, Xpress version requirements and support, and engine fixes.

Changes: 0.11.0 release notes

Layer / File(s)	Summary
Release details and categorized notes CHANGELOG.md	Adds the 0.11.0 release notes, including mathspec 0.4.0 language changes, Xpress requirements and support, and engine fixes. Reorganizes the notes into “Breaks,” “The language,” and “Fixes.”

Estimated code review effort: 1 (Trivial) | ~3 minutes

Change: Other

Possibly related PRs

• fluxopt/specsolve#2075: The release notes record the Xpress 10 fix and Xpress version requirement.
• fluxopt/specsolve#2065: The release notes record the mathspec 0.4.0 language changes.
• fluxopt/specsolve#2051: The release notes include the engine fix for models that crashed, were refused, or were built differently from their files.

Merge Risk: Minimal · up to 27564

This release-note-only change has no identified merge-blocking risk.

Architecture risk: Low · up to 27564

The change affects 1 system.

Changed systems: CHANGELOG.md

Architecture concerns
No architecture-level concerns identified.

Review details

Systems and components

• observed — CHANGELOG.md (service) was modified; 1 changed file maps to changed impact.

Before / after behavior

• observed — Modified behavior in CHANGELOG.md: Adds the 0.11.0 release heading and notes: mathspec 0.4.0 model-language changes and load-time refusals, the Xpress 9.8 minimum and Xpress 10 support, and the breaking release designation.
• observed — Modified behavior in CHANGELOG.md: Removes the prior standalone mathspec feature entry and its position before the fixes list; its language-change information is now represented in the release overview and “The language” entry.
• observed — Modified behavior in CHANGELOG.md: Retains the three engine-fix entries and adds the Xpress 10 fix with the Xpress 9.8 minimum. The old ordering placed the language entry after the engine fixes and combined the Xpress item with its prior placement; the new layout groups the language item separately and lists Xpress under fixes.

Pre-merge checks: 4

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly identifies the main change: preparing the 0.11.0 release. It is concise and specific.
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

Finishing Touches

Generate unit tests (beta)

• Commit to this branch
• Create a new PR

• Autofix · Keep fixing CodeRabbit findings and required CI, and resolving merge conflicts

[read-the-docs-community]

Documentation build overview

📚 specsolve | 🛠️ Build #35551171 | 📁 Comparing 27564ec against latest (603606c)

  🔍 Preview build  

1 file changed

± reference/changelog/index.html

[codspeed]

Merging this PR will degrade performance by 67.75%

❌ 1 regressed benchmark
✅ 103 untouched benchmarks
⏩ 307 skipped benchmarks¹

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Benchmark	BASE	HEAD	Efficiency
❌	test_read[commitment-s-specsolve-parquet]	220.7 KB	684.3 KB	-67.75%

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.

---

_{Comparing chore/release-0.11.0 (27564ec) with main (582e5c1)²}

Footnotes

1. 307 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

2. No successful run was found on main (603606c) during the generation of this report, so 582e5c1 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩