The Service Account smart contract on mainnet will be updated next week on Tuesday, June 11th by the service account committee.
The update will add the checkDependencies function to the contract in preparation for the Cadence 1.0 launch to allow tracking of contracts which have not yet been staged for upgrade.
For more details see 
pull request.
If you have any questions regarding these changes, please ask in the PR comments, on Discord in the #protocol-builders channel, or reply here.
Thank you,
Flow Foundation