The updated Collector for ArcGIS updates further the user experience, adding new exciting capabilities and a more modernize underlying engine that powers it. 

Among the new features we found exciting were: 

• Use of tile package for offline basemap -  With this feature, you can use a tile package as a basemap instead of the basemap currently in your map. Thus, you can now download a larger and more detailed basemap for offline use when needed. 

• Filter related types – you now have options on capturing related features, that is, whether capturing them directly or capturing them through their parent feature. 
• Using the Files app – the Files app now brings all of your files together with the release of iOS 11. Like, you can use it now to transport tile packages for with Collector as well. 
• Collector Links – This new feature supports ALL of the parameters of the URL scheme https://collector.arcgis.app?parameter=value&parameter=value. 
• Offset workflows using Eos Tools Pro and Lasertech rangefinders –  

There are other new features not included in this article. Read Jeff Shaner’s blog “What’s New In Collector for ArcGIS (June 2019)” to learn more; or read more in What’s New help topic.