Orion RC is a preview release for contributors and Orion+ members, set to become the next beta. Key issues addressed include URL reset for pinned tabs, ‘Open frame in new tab' functionality, app page links, save dialog errors, tab closing issues, import dialog problems, UBlock Origin updates, and performance degradations caused by 1Password. Additional enhancements involve icon fixes, extension improvements, PDF handling, and performance optimizations for tabs and WebExtensions.
https://orionbrowser.com/updates/orion-release-notes.html#macos-orion-1-0-4-143-3