BP-2480: Release notes (2026-04-13)

[jeff-matthews]

Purpose

This pull request (PR) adds release notes for the April 13, 2026 release to the release integration branch, which includes:

• BloodHound v9.0.0
• SharpHound v2.12.0
• AzureHound v2.12.0
• OpenHound v0.1.0

Note

I left several inline TODO comments related to dependent, unmerged PRs.

Staging

• summary
• release notes

Summary by CodeRabbit

• Documentation
  • Updated Cypher query documentation to include per-query timeout disable option.
  • Clarified search filtering now supports both built-in and OpenGraph node types.
  • Enhanced table view documentation with column sort and reorder capabilities.
  • Added comprehensive Posture page filter documentation including Environment, Date range, and Chart scale options.
  • Updated guidance on selective HasSession edge deletion via Database Management.
  • Corrected references to Zone Builder in access control documentation.
  • Published comprehensive release notes for v9.0.0 and related components.

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Walkthrough

This pull request updates documentation for the BloodHound/OpenHound v9.0.0 release, introducing comprehensive release notes and updating multiple documentation sections to reflect new features including OpenGraph enhancements, per-query Cypher timeout controls, HasSession edge deletion, expanded filter options, and other product improvements across components.

Changes

Cohort / File(s)	Summary
Release Notes docs/resources/release-notes/2026-04-13.mdx, docs/resources/release-notes/summary.mdx	New release notes page documenting v9.0.0 features (API key expiration, OpenHound framework, OpenGraph management/validation, graph enhancements, table column ordering, HasSession deletion, ETAC improvements). Updated summary page with structured version table, feature highlights, and linked release content.
Feature Documentation docs/analyze-data/explore/cypher-search.mdx, docs/analyze-data/explore/search.mdx, docs/analyze-data/posture-page.mdx, docs/opengraph/faq.mdx	Added documentation for per-query Cypher timeout disable option, expanded filter and visualization descriptions (node-type filtering, column operations, environment/date-range/chart-scale filters). Updated OpenGraph search filtering claims and added HasSession edge deletion guidance.
Product Updates docs/collect-data/enterprise-collection/data-retention.mdx, docs/manage-bloodhound/auth/environment-targeted-access-control.mdx, docs/opengraph/developer/api.mdx	Added guidance for HasSession edge deletion via Database Management, updated "Privilege Zones" references to "Zone Builder," and clarified POST /api/v2/clear-database endpoint to specify targeted graph data deletion.
Navigation docs/docs.json	Updated release notes navigation to add 2026-04-13 entry and archive 2026-03-04 entry.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Suggested reviewers

• StephenHinck
• slokie-so

Poem

🐰 Hop, skip, and a bound,
New docs for v9.0 abound!
Timeouts can rest, OpenHound's blessed,
With features refined and freshly pressed. 🎉

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The PR title directly references the release notes ticket (BP-2480) and the specific release date (2026-04-13), which accurately describes the primary purpose of the changeset: adding release notes documentation for April 13, 2026.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch BP-2480-release-notes

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[jeff-matthews]

TODO:

• Waiting for review/approval to merge detailed docs and cross link in release notes (OpenHound: Update extension management docs d3vzer0/bloodhound-docs#2 AND Add documentation for OpenHound usage and move/replace xHound install instructions #253).
  • Do we need PM review/approval on #253? I notified PMs and ENG in Slack.
  • #253 should probably point to the release/v9.0.0 integration branch instead of main as base branch so all release docs can go together.
• Confirm whether feature flag is user updatable (it is not, but this is only necessary for enterprise).

[jeff-matthews]

TODO: Relates to #243, but unclear if we have time to finish development/review/approval before release.

[craigw-SO]

Looks good to me!