8.4.0 / 2024-05-17

• feat: upgrade mongodb -> 6.6.2 #14584
• feat: add transactionAsyncLocalStorage option to opt in to automatically setting session on all transactions #14583 #13889
• feat: handle initially null driver when instantiating Mongoose for Rollup support #14577 #12335
• feat(mongoose): export omitUndefined() helper #14582 #14569
• feat: add Model.listSearchIndexes() #14519 #14450
• feat(connection): add listDatabases() function #14506 #9048
• feat(schema): add schema-level readConcern option to apply default readConcern for all queries #14579 #14511
• fix(error): remove model property from CastError to avoid printing all model properties to console #14568 #14529
• fix(model): make bulkWrite() and insertMany() throw if throwOnValidationError set and all ops invalid #14587 #14572
• fix(document): ensure transform function passed to toObject() options applies to subdocs #14600 #14589
• types: add inferRawDocType helper #13900 #13772
• types(document): make document _id type default to unknown instead of any #14541