* Begin of the insertion[x]End of the insertion Begin of the deletion [ ]End of the deletion Run migrations on a duplicated shard and note down execution times, strange behavior or exceptional Begin of the insertionerrors 
* [x] less than 5 minutes across all shardsEnd of the insertion Begin of the deletion errorsEnd of the deletion
* Begin of the insertion[x]End of the insertion Begin of the deletion [ ]End of the deletion Inform about all larger changes in the release notes