5.3.3 Phase 2 allow the installed LOTRO Client to launch.5.2.1 Gatekeeper Changes in macOS 10.11 (Sierra) and Later.5.2 From Apple Developer notes for Sierra (September 4, 2016).3.5 LOTRO Mac Client is also available as a download via STEAM.2.3 How to reset to the Default Graphics settings.2.1 Notes from Turbine Technical support team on their new hardware specs:.1 Routing changes related to the new Data Centers.