====================
Features and Enhancements
-------------------------
- Add two new Cortex APIs: ``syncIndexEvents`` and ``syncLayerEvents`` useful
for external indexing.
(`1948 <https://github.com/vertexproject/synapse/pull/1948>`_)
(`1996 <https://github.com/vertexproject/synapse/pull/1996>`_)
- LMDB Slab improvements: Allow dupfixed dbs, add ``firstkey`` method, inline
``_ispo2``, add HotCount deletion.
(`1948 <https://github.com/vertexproject/synapse/pull/1948>`_)
- Add method to merge sort sorted async generators.
(`1948 <https://github.com/vertexproject/synapse/pull/1948>`_)
Bugfixes
--------
- Ensure parent FQDN exists even in out-of-order node edit playback.
(`1995 <https://github.com/vertexproject/synapse/pull/1995>`_)