Why did minecraft servers stayed on 1.12.2 and not willing to update to latest version

[Kiljaeden053]

Did Mojang try to make multi-threading into Minecraft and failed to integrate it to servers thus causing the lag?

[DavidM]

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Why did minecraft servers stayed on 1.12.2 and not willing to update to latest version

Because they chose not to. Common reasons include player base not willing to move on, plugins not supporting newer versions, and switching to a newer version requiring more effort/time than the server owner is willing to commit.

 

15 minutes ago, Kiljaeden053 said:

Did Mojang try to make multi-threading into Minecraft and failed to integrate it to servers thus causing the lag?

That is not what happened and, in fact, does not make much sense. You might want to look into what is multithreading and how it is implemented in games like Minecraft.

[MoominSha]

We were 1.12 took a break and upgraded to 1.15 recently but it is was a lot of work.

[Kiljaeden053]

31 minutes ago, DavidM said:

That is not what happened and, in fact, does not make much sense. You might want to look into what is multithreading and how it is implemented in games like Minecraft.

Probably