Core Solana contributors have identified a network security issue that requires an urgent response. Version 2.1.21 with a critical security patch going live in all regions. During the upgrade process, you may experience temporary service degradation and intermittent 503 Service Unavailable errors which are expected and should resolve once upgrades are complete.
We will be closely monitoring the process to ensure a smooth transition and will provide updates as needed. Thank you for your patience and support!
If you have any questions, feel free to reach out at support@chainstack.com
