Expiration of Legacy Token Endpoint

Question

In Azure AD B2C, some of our applications do not need any scopes. They are making requests to

https://login.microsoftonline.com/ {Tenant id}/oauth2/token to get token without specifying any scopes. The Microsoft documentation says "If you have an Azure API ManagementM API that validates tokens issued by the legacy login.microsoftonline.com endpoint, you should migrate the API and the applications that call it to use tokens issued by b2clogin.com." . We are wondering if the deprecation of this token endpoint will impact our projects in the near future. Could you inform us about the deadline?

https://learn.microsoft.com/en-us/azure/active-directory-b2c/secure-api-management?tabs=app-reg-ga