# Amazon Neptune Engine Version 1.0.1.1 (2020-06-26)
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## IMPORTANT: THIS ENGINE VERSION IS NOW DEPRECATED
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Starting from 2021-04-27, no new instances using this engine version will be created.

## Defects Fixed in This Engine Release
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+ Fixed a bug where commits were out of order when inserted concurrently.
+ Fixed a bug in load-status serialization.
+ Fixed a stochastic failure in server startup which delayed instance creation.
+ Fixed a memory leak.

## Query-Language Versions Supported in This Release
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Before upgrading a DB cluster to version 1.0.1.1, make sure that your project is compatible with these query-language versions:
+ *Gremlin version:* `3.3.2`
+ *SPARQL version:* `1.1`