New

• Add isDeleted() method to all container types (Text, Map, List, Tree, etc.)

LoroDoc

• changeCount(): Get the number of changes in the oplog.
• opCount(): Get the number of ops in the oplog.

VersionVector

• setEnd(id: ID): Set the exclusive ending point. target id will NOT be included by self.
• setLast(id: ID): Set the inclusive ending point. target id will be included.
• remove(peer: PeerID): Remove the specific peer id.
• length(): Get the number of peers in the VersionVector.

Change

• Return ImportStatus in the importUpdateBatch method.
• Fractional index is enabled by default now.

Fix

• fix: getOrCreateContainer should not throw if value is null #576
• fix: dead loop when importing updates #570