6.21.1

Caution

Deprecated. This version is affected by Security Advisory 2026-10-09:

• When authentication is enabled and role-based authorization is disabled, the API accepts requests without a valid token.
• The email notification settings API returns the SMTP password. This only affects instances where email notifications were configured with an SMTP password.

Upgrade to ServiceControl 6.21.2

As part of this release we had 3 commits which resulted in 2 issues being closed.

Bugs

• #5950 Migrated Lucene indexes are reset to Corax at start-up when the index is not locked (fixes #5948)
• #5959 Retry processor runs a dynamic query that creates the auto index Auto/RetryBatches/ByStatus (fixes #5960)

Where to get it

You can download this release from our website.

🛡 ClamAV virus scan results: No viruses detected

Version: ClamAV 1.5.4
Scan Date: Wed, 07 Oct 2026 11:28:45 GMT

----------- SCAN SUMMARY -----------
Known viruses: 3628133
Engine version: 1.5.4
Scanned directories: 1
Scanned files: 4
Infected files: 0
Data scanned: 29.16 MiB
Data read: 499.27 MiB (ratio 0.06:1)
Time: 42.470 sec (0 m 42 s)
Start Date: 2026:10:07 11:27:57
End Date:   2026:10:07 11:28:40