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Merge branch 'jfu-update-620-rst' of github.com:sfc-gh-jfu/foundationdb into jfu-update-620-rst

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Jon Fu 2021-05-03 17:29:18 -04:00
parent 9eb908de21 236a6e0985
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@ -803,13 +803,13 @@ Upgrades from versions older than 5.0.0 are no longer supported.
Version-specific notes on downgrading
===================================
In general, downgrades between patch releases (i.e. 6.2.x - 6.1.x) are not supported.
In general, downgrades between non-patch releases (i.e. 6.2.x - 6.1.x) are not supported.
.. _downgrade-specific-version:
Downgrading from 6.3.13 - 6.2.33
--------------------------------
After upgrading from 6.2 to 6.3, the option of rolling back and downgrading to return to 6.2 is still possible, given that the following conditions are met:
After upgrading from 6.2 to 6.3, the option of rolling back and downgrading to 6.2 is still possible, given that the following conditions are met:
* The 6.3 cluster cannot have ``TLogVersion`` greater than V4 (6.2).
* The 6.3 cluster cannot use storage engine types that are not ``ssd-1``, ``ssd-2``, or ``memory``.