Or is there a change log of the targeted fixes for 1.13 ?
@jamoser anything specific you are looking for?
I would like to see this issue fixed [PSMDB-1068] First creation of a collection of a new database takes very long because listDatabases is called - Percona JIRA - currently a big show stopper in our project.
Cannot promise you that. It seems to be a fundamental MongoDB issue. Will check with our eng team.