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Resolved

Calibration network PDPVerifier v3.5.0 and FWSS v1.4.0 contract upgrades

Aug 31, 2026 at 5:00pm UTC  –  Aug 31, 2026 at 9:00pm UTC
Affected services
Maintenance and upgrade windows

Resolved
Aug 31, 2026 at 9:00pm UTC

Maintenance ended

Created
Aug 31, 2026 at 5:00pm UTC

A coordinated PDPVerifier v3.5.0 and Filecoin Warm Storage Service
v1.4.0 contract upgrade is scheduled for the Filecoin Calibration
network from 17:00 to 21:00 UTC on August 31, 2026.

The existing PDPVerifier and FWSS proxy addresses will remain unchanged.
The maintenance includes the PDPVerifier proxy upgrade, the FWSS proxy
upgrade, the FWSS StateView switch, and post-upgrade validation.

Mainnet is not affected by this maintenance.

PDP rollout:
https://github.com/FilOzone/pdp/issues/304

FWSS release:
https://github.com/FilOzone/filecoin-services/releases/tag/v1.4.0