Amazon Neptune Engine Version 1.0.4.2.R3 (2021-06-28)
As of 2021-06-28, engine version 1.0.4.2.R3 is being generally deployed. Please note that it takes several days for a new release to become available in every region.
Known issues in this engine release
Issue:
A SPARQL bug that fails to honor media type in an Accept
header if
there are spaces present.
For example, a query with -H "Accept: text/csv; q=1.0, */*; q=0.1"
returns JSON output rather than CSV output.
Workaround:
If you remove the spaces in the Accept
clause in the header, the engine
returns output in the correct requested format. In other words, instead of
-H "Accept: text/csv; q=1.0, */*; q=0.1"
, use:
-H "Accept: text/csv;q=1.0,*/*;q=0.1"
Defects Fixed in This Engine Release
Fixed a bug in clearing the lookup cache on replicas after a fast reset.
Query-Language Versions Supported in This Release
Before upgrading a DB cluster to version 1.0.4.2.R3, make sure that your project is compatible with these query-language versions:
Gremlin version:
3.4.10
SPARQL version:
1.1
Upgrade Paths to Engine Release 1.0.4.2.R3
This patch release is optional unless your DB cluster is using one or more R5d
instances. If your cluster has R5d
instances, it will automatically be upgraded
in the next maintenance window. Otherwise, it will not automatically be upgraded to this
patch release.
You can upgrade release 1.0.4.2.R2
to this 1.0.4.2.R3
release
manually using the Amazon CLI apply-pending-maintenance-action
command (the ApplyPendingMaintenanceAction API).