Breaking changes
- Allocation:
- Default delayed allocation timeout to 1m from 0 #12166
- Allocation:
- Optional Delayed Allocation on Node leave #11712
- Recovery:
- Allocation:
- Simplify ShardRouting and centralize move to unassigned #11634
- Cluster:
- Exceptions:
- Reduce the size of the XContent parsing exception #11642
- Internal:
- REST:
- Search:
- Snapshot/Restore:
- Term Vectors:
- Only load term statistics if required #11737
- Upgrade:
- Upgrade groovy from 2.4.0 to 2.4.4 #12288