The testnet upgrade to v0.21.0 has been completed successfully. See https://docs.hedera.com/guides/docs/release-notes/services#v0.21.0 for information on the release.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Hedera will be upgrading the Testnet to v0.21.x (release notes: https://hedera.io/release-notes) on Tuesday, December 21st 2021 at 16:00 UTC. The upgrade will take approximately 2 hours to complete, during which time all network services on the Hedera Testnet will be offline. This upgrade should not affect your project's compatibility or data. As a precaution, we always recommend preserving project data prior to any Testnet upgrade.