Why hasn't my Minecraft (pc) updated to the new update? (The new update with the shields )?

Edit

Edit

So the Minecraft website said that Minecraft will update automatically but mine hasn't. I seen tons of youtubers with the new update this week. So why haven't I gotten it yet?

So the Minecraft website said that Minecraft will update automatically but mine hasn't. I seen tons of youtubers with the new update this week.

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