The Starknet V0.12.3 upgrade will take place tomorrow

ChainCatcher message, Starknet posted on X platform: "If there are users currently using the feeder gateway and have not yet migrated to one of the alternatives, please take action as soon as possible. On December 19, 2023, the feeder gateway will close most queries on the mainnet, while the network will upgrade to V0.12.3. Similarly, if there are users who have not switched to using full nodes or RPC services, please switch before the deprecation of the feeder gateway. If you have any questions or concerns, please post comments on the community forum."