Gallery: Photo Editor is improved and has new image resize functionality
My Files: Added FTP/SMB Support
MultiStar: Multi Focus
Settings: Visual and layout updates to 'Display', 'Software Update' and 'Wi-Fi' sections
Camera
New Mode: Single Take
New Mode: Pro Video
New Feature: Custom Filters
New Feature: Night Hyperlapse
New Setting: Smart Selfie Angle
Front camera can now record 4K at 60 FPS
You can now switch between rear and front lenses while recording video
Holding shutter button now starts video in photo mode
Burst/GIF functionality has been moved from holding the shutter button to swiping it from the edge
'AR Emoji' in 'More' is now 'AR Zone'. 'AR Zone' groups all AR related camera functions into one app. Some AR apps have also been updated and improved.
Samsung Keyboard
Redesigned with an updated look
Haptic feedback when deleting text
Undo Gesture
New Option: Keep symbol panel open
New Shortcut: Keyboard Size
New Feature: Search
New Feature: Translate
New Feature: Samsung Pass
System
New Feature: Quick Share
New Feature: Music Share
New Feature: Deep Sleeping Apps
New animation when using fingerprint
Changed positioning of status bar icons
2 way gesture bar now has an animation when swiping up
Additional screen zoom options have been added
This update should bring support for NavStar for those having issues. Make sure to reinstall.
Apps can now be kept open for quick launching through the recents screen menu
After the recent news about One UI 2.1 on Galaxy 2019 series, a new S10 updates (which seems close to be officially released) has been reported under form of buildstrings:
*G970U1UEU3DTC3
*G973U1UEU3DTC3
*G975U1UEU3DTC3
At this point I assume that the same one will be released also for the exynos versions in April/May.
P.S = Thanks to Max Weinbach for infos.
UPDATE 1: Another community moderator has announced a more clear release timeline (between 3 weeks). More info on this article
UPDATE 1,5: Seems that Sammobile source expects the release of this update for the next week. More info on this article
UPDATE 2: Finally One UI 2.1 for S10 Exynos has been out in Switzerland. Here are the links: S10eS10S10+