Add changes for fleetd v1.56.3

[lucasmrod]

Summary by CodeRabbit

• Bug Fixes
  • Fixed agent handling of osquery command line flags. The system now correctly preserves pre-packaged flagfiles when the flag setting is unset, while continuing to clear flags when explicitly set to empty.

[Copilot]

Pull request overview

This PR prepares the Orbit/fleetd release notes for fleetd v1.56.3 by moving a previously-staged change entry into orbit/CHANGELOG.md and removing the now-consumed orbit/changes/ entry file.

Changes:

• Added a new ## 1.56.3 (Jun 11, 2026) section to the Orbit changelog with the relevant user-visible fix.
• Removed the corresponding orbit/changes/47285-preserve-prepackaged-osquery-flags entry after incorporating it into the changelog.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
orbit/changes/47285-preserve-prepackaged-osquery-flags	Removes the consumed change entry now that it’s been added to the changelog.
orbit/CHANGELOG.md	Adds the 1.56.3 release section and includes the change note describing the fix.

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: a0b3df0a-0e76-4fa9-8bd0-2d14ec401cfb

📥 Commits

Reviewing files that changed from the base of the PR and between 6735479 and fd69917.

⛔ Files ignored due to path filters (1)

• orbit/CHANGELOG.md is excluded by !**/*.md

📒 Files selected for processing (1)

• orbit/changes/47285-preserve-prepackaged-osquery-flags

💤 Files with no reviewable changes (1)

• orbit/changes/47285-preserve-prepackaged-osquery-flags

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Walkthrough

This PR updates a changelog entry in orbit/changes/47285-preserve-prepackaged-osquery-flags that documents the behavior of fleetd's handling of pre-packaged osquery flagfiles. The change clarifies that when the command_line_flags agent setting is unset, the system clears the flagfile, while explicitly setting it to an empty document ({} or null) continues to clear it. This is a minimal documentation update reflecting existing or intended behavior.

Possibly related issues

• fleetd clears pre-packaged osquery flagfile when server has no command_line_flags configured #47285: Documents the same code-level behavior regarding fleetd's handling of command_line_flags and its effect on the osquery.flags file when the setting is unset versus explicitly empty.

Possibly related PRs

• fleetdm/fleet#47305: Implements the underlying changes to orbit/pkg/update/flag_runner.go for the osquery.flags and command_line_flags behavior that this changelog entry describes.

🚥 Pre-merge checks | ✅ 3 | ❌ 2

❌ Failed checks (1 warning, 1 inconclusive)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	No pull request description was provided by the author, making it impossible to verify compliance with the repository's required description template and checklist items.	Add a comprehensive pull request description following the repository template, including the related issue number, relevant checklist items, and explanation of changes.
Title check	❓ Inconclusive	The title is vague and generic, using non-descriptive language ('Add changes for fleetd v1.56.3') that does not convey meaningful information about the actual changeset regarding osquery flagfile handling.	Revise the title to specifically describe the main change, such as 'Preserve pre-packaged osquery flags behavior in fleetd v1.56.3' or similar.

✅ Passed checks (3 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch release-notes-fleetd-v1.56.3

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