Dear Valued Customer,
This is a follow up communication to SNS Notice #28258: Trellix Helix Scheduled Maintenance - Cloud Helix Integration Backend Infrastructure Upgrade (Phase II) sent on July 21, 2026 regarding the Phase II infrastructure upgrade for the Cloud Helix Integrations (CHI) backend.
Due to technical difficulties, we were unable to complete the planned deployment for the US-West-2 region on August 2, 2026. All other regional deployments were completed as scheduled.
Rescheduled Maintenance Window
The maintenance for the remaining region has been rescheduled as follows:
| Region | Maintenance Window |
|---|---|
| US region (West-2) | August 8, 2026 (starting 4:30 a.m. UTC) |
What to expect?
- Service availability: While we aim for a seamless transition, there is a possibility of brief service interruptions lasting between 60 to 90 minutes during the maintenance window.
- Data integrity: Please be assured that no data or events will be lost during this period. All processes will resume automatically once the update is complete.
- Action required: No action is required on your part.
Our Engineering and SRE teams will be monitoring this final deployment closely to ensure a smooth completion.
Thank you for your understanding and continued partnership.