Topic:  Planned PDA Release 4.11 Upgrade at the NSOF OPS site.

Date/Time Issued:  April 30th, 2026 1257Z

Product(s) or Data Impacted:  Products ingested and disseminated to/from the NSOF OPS site.

Date/Time of Initial Impact: April 30th, 2026 1430Z

Date/Time of Expected End: April 30th, 2026 2230Z

Length of Event:  8 hours

Details/Specifics: The ESPC PDA Support team will perform Day 2 of the PDA Release 4.11 upgrade at the NSOF OPS site during the impact times listed above. Interruptions to service may occur during service restarts and/or database switchovers within the maintenance window above. The PDA Support team will monitor the environment to quickly address and remediate any issues.

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