@Aml Abbas Thanks for reaching out.
The notification is sent to all the customer who have created any of the resources (Azure Service Bus, Azure Event Hubs, or Azure Relay resources) and there is action needed at their end to validate if they are using any of the old version control plane API references and they need to update to the new API references as documented here and in case if you are using SDK's to communicate with any of the services then you need to update to the new packages.
If you are using the azure function or logic app triggers, stream analytics etc. (where you are not using the resource SDK's directly and control plan API operations) then there would be no action needed from your end. But in other cases, you should follow this.
Let me know if you have any queries or concerns.