Here is a link to the new features in 19.1. You are behind on the 8.0 SP1 version as well, so I have included links to the new features in 8.0 SP1. Aside from new features though, there have been a lot of changes since March of 2018 when 1085 was released.

19.1 Features

https://community.pega.com/knowledgebase/articles/pega-robotic-automation/whats-new-pega-robotic-automation

8.0 SP1 Features

https://community.pega.com/knowledgebase/documents/pega-robotic-automation-studio-and-runtime-version-80-sp1-release-notes

List of fixes in 8.0 SP1

https://community.pega.com/knowledgebase/articles/pega-robotic-automation/cumulative-build-notes-pega-robotic-automation-80-0

List of fixes in 8.0

https://community.pega.com/knowledgebase/articles/pega-robotic-automation/cumulative-build-notes-pega-robotic-automation-80