- 2026 Content Package Release Notes
- 2025 Content Package Release Notes
- Content Package 2025.26.1
- Content Package 2025.25.1
- Content Package 2025.24.1
- Content Package 2025.23.1
- Content Package 2025.22.1
- Content Package 2025.21.1
- Content Package 2025.20.1
- Content Package 2025.19.1
- Content Package 2025.18.1
- Content Package 2025.17.1
- Content Package 2025.16.1
- Content Package 2025.15.1
- Content Package 2025.14.1
- Content Package 2025.13.1
- Content Package 2025.12.1
Content Package 2026.6.6
These release notes contain information about content package 2026.6.6, released on 25 Jun 2026.
Enhancements
Updated parser conditions and regex extractions for dest_domain, domain, dest_login_id, login_id, dest_user_sid, user_sid, auth_process, auth_package, src_host_windows, src_host, subject_sid and src_user in parser - microsoft-evsecurity-kv-endpoint-success-4624-1.
Restored the following enrichers that were previously deprecated as part of the April content update. To resolve and normalize the user and dest_user fields from email addresses, UPNs, SIDs, UIDs, and employee numbers.
Enrichers Restored
DisplayName | Name |
|---|---|
UID to User Lookup | all-user_id-user |
EmployeeNumber to User Lookup | all-employee_id-user |
Email to User Enricher-1 | all-user-1 |
Destination Email to Destination User Enricher-1 | all-dest_user-1 |
Email to User Enricher-2 | all-email_address-user-2 |
Destination Email to Destination User Enricher-2 | all-dest_email_address-dest_user-2 |
User SID to User Lookup | all-user |
Microsoft User UPN to User/Email Enricher | microsoft-email_address-user |
Null Direction Network Traffic | all-direction-3 |
Enrichers Removed
These were the alternatives available prior to the restored enrichers above.
DisplayName | Name |
|---|---|
User to Email Address | all-email_address-user |
Destination User to Destination Email Address | all-dest_email_address-dest_user |
User to User SID or User ID | all-user_sid-user_id-user |
Destination User to Destination User SID or Destination User ID | all-dest_user_sid-dest_user_id-dest_user |
Microsoft User UPN to Email Address Enricher | microsoft-email_address-user_upn |
Customers may observe improved population of user and dest_user fields on events where these were previously missing or unresolved after the April release. Correlation rules and analytics that depend on these fields may resume firing with broader coverage.