In case you don’t see the update button, the game might be already updated (if automatic updates are on).
Players using Android or iOS need to visit the official app store page, find Minecraft and tap on UPDATE to get the newest version. Plus, players need to check if the Realm version is up-to-date as well.
Under Create New Installation, name a new installation and click the version you prefer from the VERSION drop down list.Next to the Play button on top, there will be an Installations tab.How to Match the Minecraft Version with the Server Version: Based on that, you can decide if you are going to change your client version or the server’s host/admin is going to change their version. Plus, communicate with the server owner and check the version they are using. While playing with other players, it is crucial to ensure that everyone uses the same Minecraft version. For example, this could happen when the client automatically updates and becomes incompatible with the server version. As the error message suggests, the “Could Not Connect Outdated Server” is coming up due to a mismatch with the client and server versions of Minecraft.