Jun26SU Release

[dpaulson45]

Reason:
June 2026 SU Release

[dpaulson45]

/azp run

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[Copilot]

Pull request overview

June 2026 SU release update across the repo, primarily refreshing Exchange build/CVE metadata and adding standardized self-update/version-check support to Public Folders scripts and their documentation.

Changes:

• Updated Exchange build dictionaries and “latest SU” detection to recognize Jun26SU, and added the corresponding HealthChecker CVE bundle + test expectations.
• Added -ScriptUpdateOnly / -SkipVersionCheck plumbing (via GenericScriptUpdate.ps1) to many Public Folders scripts and expanded/organized Public Folders docs + MkDocs nav accordingly.
• Added new Public Folders scripts and docs for branch moves, group migration workflows, and legacy mail public folder sync tooling.

Reviewed changes

Copilot reviewed 42 out of 42 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
Shared/Get-ExchangeBuildVersionInformation.ps1	Adds Jun26SU versions and updates “latest SU” checks.
PublicFolders/ValidateMailEnabledPublicFolders.ps1	Adds script self-update parameters + generic update hook.
PublicFolders/ValidateEXOPFDumpster.ps1	Adds script self-update parameters + generic update hook.
PublicFolders/Update-PublicFolderPermissions.ps1	Documents/adds script self-update parameters + generic update hook.
PublicFolders/Move-PublicFolderBranch.ps1	New script to move a PF branch to another PF mailbox (includes script update hook).
PublicFolders/Migration/ToMicrosoft365Groups/UnlockAndRestorePublicFolderProperties.ps1	New rollback script for PF → M365 Groups migration (includes script update hook).
PublicFolders/Migration/ToMicrosoft365Groups/LockAndSavePublicFolderProperties.ps1	New lockdown+backup script for PF → M365 Groups migration (includes script update hook).
PublicFolders/Migration/ToMicrosoft365Groups/AddMembersToGroups.ps1	New script to map PF permissions into M365 Group owners/members (includes script update hook).
PublicFolders/Migration/ToExchangeOnline/SetMailPublicFolderExternalAddress.ps1	Adds script self-update parameters + generic update hook.
PublicFolders/Migration/ToExchangeOnline/ModernPublicFolderToMailboxMapGenerator.ps1	Adds script self-update parameters + generic update hook.
PublicFolders/Migration/ToExchangeOnline/Export-ModernPublicFolderStatistics.ps1	Adds script self-update parameters + generic update hook.
PublicFolders/ManagePublicFolderPermissions.ps1	Adds script self-update parameters + generic update hook.
PublicFolders/MailPublicFolderSync/Sync-ModernMailPublicFolders.ps1	Adds script self-update parameters + modernizes Connect-ExchangeOnline param usage.
PublicFolders/MailPublicFolderSync/Sync-MailPublicFoldersCloudToOnprem.ps1	Adds script self-update parameters + modernizes Connect-ExchangeOnline param usage.
PublicFolders/MailPublicFolderSync/Sync-MailPublicFolders.ps1	New/added script with update hook and modern auth connection pattern for legacy sync.
PublicFolders/MailPublicFolderSync/Import-PublicFolderMailboxes.ps1	Adds script self-update parameters + modernizes Connect-ExchangeOnline param usage.
PublicFolders/MailPublicFolderSync/Import-MailPublicFolders.ps1	New script to create placeholder mail PF objects in target forest (includes update hook).
PublicFolders/Export-PublicFolderStatistics.ps1	Adds script self-update parameters + generic update hook.
mkdocs.yml	Re-organizes Public Folders navigation; adds new sections/pages.
docs/PublicFolders/ValidateMailEnabledPublicFolders.md	Documents new script update parameters and syntax.
docs/PublicFolders/ValidateEXOPFDumpster.md	Expands parameter documentation incl. script update parameters.
docs/PublicFolders/Update-PublicFolderPermissions.md	Documents script update parameters/syntax.
docs/PublicFolders/Move-PublicFolderBranch.md	New docs page for Move-PublicFolderBranch.
docs/PublicFolders/Migration/ToMicrosoft365Groups/UnlockAndRestorePublicFolderProperties.md	New docs page for rollback script.
docs/PublicFolders/Migration/ToMicrosoft365Groups/LockAndSavePublicFolderProperties.md	New docs page for lockdown+backup script.
docs/PublicFolders/Migration/ToMicrosoft365Groups/AddMembersToGroups.md	New docs page for AddMembersToGroups.
docs/PublicFolders/Migration/ToExchangeOnline/SetMailPublicFolderExternalAddress.md	Documents script update parameters.
docs/PublicFolders/Migration/ToExchangeOnline/ModernPublicFolderToMailboxMapGenerator.md	Documents script update parameters.
docs/PublicFolders/Migration/ToExchangeOnline/Export-ModernPublicFolderStatistics.md	Documents script update parameters.
docs/PublicFolders/ManagePublicFolderPermissions.md	Documents script update parameters.
docs/PublicFolders/MailPublicFolderSync/Sync-ModernMailPublicFolders.md	Documents script update parameters.
docs/PublicFolders/MailPublicFolderSync/Sync-MailPublicFoldersCloudToOnprem.md	Documents script update parameters.
docs/PublicFolders/MailPublicFolderSync/Sync-MailPublicFolders.md	New docs page for Sync-MailPublicFolders.
docs/PublicFolders/MailPublicFolderSync/Import-PublicFolderMailboxes.md	Documents script update parameters.
docs/PublicFolders/MailPublicFolderSync/Import-MailPublicFolders.md	New docs page for Import-MailPublicFolders.
docs/PublicFolders/index.md	New Public Folders landing page with categorized script tables.
docs/PublicFolders/Export-PublicFolderStatistics.md	Documents script update parameters.
Diagnostics/HealthChecker/Tests/HealthChecker.E19.Main.Tests.ps1	Updates expected CVE test count for Jun26SU additions.
Diagnostics/HealthChecker/Tests/HealthChecker.E16.Main.Tests.ps1	Updates expected CVE test and grouping counts for Jun26SU additions.
Diagnostics/HealthChecker/Analyzer/Security/Invoke-AnalyzerSecurityCveCheck.ps1	Adds Jun26SU CVE bundle mapping.
.github/CODEOWNERS	Updates ownership paths for reorganized Public Folders sync content.
.build/cspell-words.txt	Adds new domain-specific terms used by new/updated scripts/docs.