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If you are upgrading from v3.2.x or v3.3.x to v3.45
.y, you must recalculate data in the Xray configuration section → Custom Fields. This recalculation is necessary because of the huge improvement in the amount of data that Xray needs to add to the table and to Lucene indexes.
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Downgrading from Xray 3.5.x
Downgrading from Xray 3.45.x to a version less than 3.2.0 implies that you must perform a re-index afterwards. This is because from Xray 3.2.0 onwards, the content and format of what Xray indexes has changed.
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