Shiny Server (Pro) 1.5.7

This is a companion discussion topic for the original entry at

Shiny Server and Shiny Server Pro are now available.
Highlights for this release are a major-version Node upgrade, support for HTTP gzip/deflate compression and (optionally) secure cookies, and numerous bug fixes. We’ve also dropped support for some Linux distro versions that have reached their end of life.
Shiny Server Upgrade to Node v8.10.0.
Dropped support for Ubuntu 12.04 and SLES 11.
Support gzip/deflate compression for HTTP responses.