# Amazon Neptune Engine Updates 2019-10-31
<a name="engine-releases-1.0.1.0.200502.0"></a>

**Version:** 1.0.1.0.200502.0

## IMPORTANT: THIS ENGINE VERSION IS NOW DEPRECATED
<a name="engine-releases-1.0.1.0.200502.0-deprecation"></a>

No new instances using this engine version will be created, beginning 2021-04-27.

## Defects Fixed in This Engine Release
<a name="engine-releases-200502-defects"></a>
+ Fixed a Gremlin bug in the serialization of the `tree()` step's response when clients connect to Neptune using `traversal().withRemote(...)` (in other words, using GLV bytecode).

  This release addresses an issue in which clients who connected to Neptune using `traversal().withRemote(...)` received an invalid response to Gremlin queries that contained a `tree()` step.
+ Fixed a SPARQL bug in `DELETE WHERE LIMIT` queries, in which the query termination process would hang because of a race condition, causing the query to time out.