Starknet V0.12.3 upgrade will be carried out tomorrow

Starknet posted on X platform: "If there are users who are still using the feeder gateway and have not migrated to one of the alternative solutions, please take action as soon as possible. On December 19, 2023, the feeder gateway will close most queries on the main network, and the network will be upgraded to V0.12.3. Similarly, if there are users who have not switched to using a full node or RPC service, please switch before the feeder gateway is deprecated. If there are any questions or concerns, please post comments on the community forum."