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diff --git a/nixos/doc/manual/release-notes/rl-2211.section.md b/nixos/doc/manual/release-notes/rl-2211.section.md
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@@ -274,6 +274,8 @@ Available as [services.patroni](options.html#opt-services.patroni.enable).
 
 - A new module was added for the Saleae Logic device family, providing the options `hardware.saleae-logic.enable` and `hardware.saleae-logic.package`.
 
+- ZFS module will not allow hibernation by default, this is a safety measure to prevent data loss cases like the ones described at [OpenZFS/260](https://github.com/openzfs/zfs/issues/260) and [OpenZFS/12842](https://github.com/openzfs/zfs/issues/12842). Use the `boot.zfs.allowHibernation` option to configure this behaviour.
+
 - The Redis module now disables RDB persistence when `services.redis.servers.<name>.save = []` instead of using the Redis default.
 
 - Neo4j was updated from version 3 to version 4. See this [migration guide](https://neo4j.com/docs/upgrade-migration-guide/current/) on how to migrate your Neo4j instance.