IRIS-HEP kickoff at UChicago, 10/31 - 11/2

OSG Annual Planning retreat, 11/6 - 11/8. BrianL will try to find someone to attend this meeting in his place.

OSG 3.4.19 (release tomorrow)

- XRootD 4.8.5 (https://github.com/xrootd/xrootd/blob/v4.8.5/docs/ReleaseNotes.txt)

- AutopyFactory 2.4.9

- gfal2 generating invalid TLS records (https://opensciencegrid.atlassian.net/browse/SOFTWARE-3454). Fix targeted for CVMFS.