cannot open a server (incompatibility between versions)

Hello officers:

I have purchased and downloaded the latest version of the BE (win10 version) Minecraft from the Microsoft Store on win10 system and it is indicated that the latest version is 1.16.210.50. However, the version of the Server Client of BE used for opening a server from official website is uniformly 1.16.101.01 and it is incompatible with the 1.16.210.50 client. 

So, I wonder under this situation, how I can open the server without this limitation. If ok, How can I download the previous version (1.16.101.01), which is compatible with the Server client?

Additionally, I would like to know in the term of 'Server Address' in the menu of 'Edit External Server' , what kind of address shall I add into when I choose to open a server? And, how can I add the local savings into the server and convert it into a multiplayer and 'running-in-server' saving?

I am looking forward to your response.