@PATRICIA FUENTES Thank you for reaching out to Microsoft Q&A apologize for any inconvenience caused on this.
The above documentation that you are referring is API version retirement which is specific to Azure API Management service only and it is recommended to update your API instance with latest version prior to 2021-08-01.
For the other services, it is always recommended to use their respective latest API versions referring from here
Feel Free to reach back to me if you have any other questions on this.