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add mention of FCV #247

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3178a28
add mention of FCV
MongoCaleb Jun 2, 2025
6698005
wordsmithing
MongoCaleb Jun 2, 2025
574497b
remove constant
MongoCaleb Jun 2, 2025
4af6811
fix typo
MongoCaleb Jun 3, 2025
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25 changes: 13 additions & 12 deletions source/high-availability.txt
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Expand Up @@ -318,18 +318,19 @@ If you encounter resource capacity issues, see :ref:`arch-center-resource-capaci
Plan Your MongoDB Version Changes and Maintenance
`````````````````````````````````````````````````

We recommend that you run the latest MongoDB version as it allows you to
take advantage of new features and provides improved security guarantees
compared with previous versions.

Ensure that you perform MongoDB major version upgrades far before your
current version reaches `end of life <https://www.mongodb.com/legal/support-policy/lifecycles>`__.

You can't downgrade your MongoDB version using the {+atlas-ui+}. Because of this,
when planning and executing a major version upgrade, we recommend that you
work directly with MongoDB Professional or Technical Services to help you
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noticed we removed the suggestion contacting Technical Services, will leave up to the team if worth preserving this statement

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The original sentiment was that you can't downgrade, so talk to tech services", but since you can downgrade with FCV, it seemed out of place to keep that in there. Happy to be convinced otherwise!

avoid any issues that might occur during the upgrade process.

We recommend that you run the latest MongoDB version, as it allows you to
take advantage of new features and provides improved security guarantees compared
with previous versions. You should ensure that you perform major version upgrades
far before your current version reaches
`end of life <https://www.mongodb.com/legal/support-policy/lifecycles>`__.

When planning and executing a major version upgrade, we recommend that
you use Feature Compatibility (FCV) to ensure version compatibility. By
pinning your cluster's FCV, you can revert MongoDB to the previous version.

For more information, see
:atlas:`Manage FCV During Upgrades </tutorial/major-version-change/#manage-feature-compatibility--fcv--during-upgrades>`.

Configure Maintenance Windows
`````````````````````````````

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