Upgrading a node from Crux version 1.X.n to 1.Y.n generally requires rebuilding the node’s local KV index store from the golden stores, i.e. the transaction log and the document store.

You can perform this rebuild process by simply shutting down your node and removing the KV store’s db-dir (and similarly for Lucene’s db-dir indexes where crux-lucene is enabled). Crux will then rebuild the indices when the node is restarted.