Announcing OSG Software version 3.3.21

We are pleased to announce OSG Software version 3.3.21.

Changes to OSG 3.3.21 include:
- osg-configure 1.6.1: Additional support for ATLAS AGIS
- GlideinWMS 3.2.17: See Release Notes
- Important bug fixes for CVMFS server
- HTCondor 8.4.11: Final bug fix release of the 8.4 series
- HTCondor-CE 2.1.2: Avoid crash by being more liberal in what we accept
- Added 2 scripts to manage VO and CA certificates in tarball installations

Changes to the Upcoming Repository include:
- Singularity 2.2.1: Moderate Severity security update

Release notes and pointers to more documentation can be found at:

https://www.opensciencegrid.org/bin/view/Documentation/Release3/Release3321

Need help? Let us know:

https://www.opensciencegrid.org/bin/view/Documentation/Release3/HelpProcedure

We welcome feedback on this release!