chore: update UKCI kernels

[kxxt]

Automated UKCI kernel update

Summary by CodeRabbit

• Updates
  • Updated supported Linux kernel sources to newer LTS patch releases.
  • Replaced the previous 7.1 kernel entry with stable 7.2 and 7.3 release candidate sources.

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Project	Deployment	Actions	Updated (UTC)
tracexec	Building	Preview	Aug 31, 2026 3:12pm

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yml

Review profile: CHILL

Plan: Pro Plus

Run ID: 59172c29-094b-4f29-93dd-a64ced1062bd

📥 Commits

Reviewing files that changed from the base of the PR and between fc84e6b and 6cabcd5.

📒 Files selected for processing (1)

• nix/ukci.nix

Included review availability: Your plan provides up to 2 included reviews per hour; 1 remains after this review.

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Walkthrough

The kernel source list updates four LTS patch releases and replaces the optional 7.1 kernel with stable 7.2 and release candidate 7.3 entries for non-riscv64 targets.

Changes

Kernel source updates

Layer / File(s)	Summary
LTS kernel version updates nix/ukci.nix	The 6.1lts, 6.6lts, 6.12lts, and 6.18lts entries use newer patch tags and SHA-256 values.
Optional kernel set update nix/ukci.nix	The non-riscv64 optional list removes 7.1 and adds stable 7.2 and release candidate 7.3 entries.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: ⚪ Minimal · up to 6cabc

This change updates UKCI kernel versions and replaces the non-riscv64 7.1 entry with 7.2 and 7.3 entries. No actionable merge-blocking risk remains beyond normal checks and review.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: updating UKCI kernel sources.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (1 skipped: 1 unsupported.)

✨ Finishing Touches 💡 1

🛠️ Fix failing CI checks 💡

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch automation/update-ukci-kernels

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[greptile-apps]

Greptile Summary

The PR refreshes the UKCI kernel matrix.

• Updates four long-term kernel patch releases and their pinned hashes.
• Replaces the Linux 7.1 stable entry with Linux 7.2.2.
• Adds Linux 7.3-rc1 coverage for non-RISC-V targets.

Confidence Score: 5/5

The PR appears safe to merge; no concrete defect was identified in the updated UKCI kernel matrix.

The changed source names, tag and version formats, architecture guard, and generated matrix naming remain consistent with the repository’s kernel-fetch and update contracts.

Important Files Changed

Filename	Overview
nix/ukci.nix	Updates pinned UKCI kernel releases and adds a release-candidate entry using metadata consistent with the existing source helper and update automation.

_{Reviews (1): Last reviewed commit: "chore: update UKCI kernels" | Re-trigger Greptile}