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The Percona Database Performance Blog

Technical guides, deep dives, and perspectives across MySQL, PostgreSQL, MongoDB, Valkey, Redis, and more.

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October 9, 2026
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Ivan Groenewold
MongoDB 9.0: More 8.4 than 9.0?
MongoDB 9.0 is here. Strip away the marketing around AI, Atlas, and “the best version ever built”, and MongoDB 9.0 starts to look a lot like MongoDB 8...
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