This table is for archival purposes and does not list all features of replica sets. Always use the latest stable release of MongoDB in production deployments.
|replSetFreeze and replSetStepDown||1.7.3|
|Replicated ops in mongostat||1.7.3|
|Syncing from Secondaries||1.8.0|
|Replication from Nearest Server (by ping Time)||2.0|
|replSetSyncFrom support for replicating from specific members.||2.2|