The update includes several improvements and bug fixes such as ensuring Apple's Screen Time web limits are now respected, reducing the number of captcha prompts when using Google Search, and fixing issues related to tab order rearrangement, crashes when deleting passwords, and proper handling of incognito tabs. Additionally, various functionality problems across different features and platforms, like JavaScript disabling, window listing, and sidebar actions on iPad, have been addressed.
https://orionbrowser.com/updates/orion-iOS-release-notes.html#ios-release-1-4-17