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<p>Did you know... that the default write concern is <code>{ w: majority }</code> starting in v5.0? More data durability from the moment you install, but you still have the option (if you don't need 100% data durability) to back off to <meta charset="utf-8"><code>{ w: 1 }</code>.</p>
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<p><a href="https://www.mongodb.com/blog/post/default-majority-write-concern-providing-stronger-durability-guarantees-out-box">https://www.mongodb.com/blog/post/default-majority-write-concern-providing-stronger-durability-guarantees-out-box</a></p>
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