Hi everyone 👋 was wondering if I could get some help in relation to schema migrations • When updating collection schemas and reindexing the existing data. Does the downtime apply to both writes and reads? i.e it blocks both operations until the migration and indexing finishes • Does downtime apply to high availability 3 node clusters? or can each node update itself one at a time while the other nodes are able to process async reads and writes in the background Just trying to gauge whether aliasing collections for schema updates is needed for my use case