The Postgres-XL community has released a new version of the software, tagged as 9.5r1.1. This is a minor update to earlier 9.5r1 release, but contains some very important bug fixes. We encourage everyone to immediately upgrade to this latest release. Being a minor release, you only need to download the latest sources from , compile, install new binaries and restart your servers. So it should be fairly straight forward.
For more details, please refer to the release notes here.