iOS 10 has landed in Singapore on 14th Sep 1AM and initially updates via OTA were causing issues for some users. Guess it was fixed quickly by Apple or probably their servers couldn't take the load.
iOS 10 has been released as a free upgrade for the following devices only:
iPad 4 and later (ie, iPad 4, iPad Air, iPad Air 2, iPad Pro (9.7in and 12.9in)
iPad mini 2 and later (iPad mini 2, iPad mini 3, iPad mini 4)
iPod touch 6th generation
iPhone 5 and later (iPhone 5, iPhone 5c, iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, iPhone SE)
Sad to say my iPad 3 does not qualify for this upgrade and the last working iOS is 9.3.5.
A list of some of the new features has been listed below for your quick reference. Too many things to list down.
iMessage - now sending messages using iMessage is more fun and users like me start to use iMessage more frequently to people i know who are using iPhone too. You can now scribble, send heart, kisses, do shout out etc to contacts. It's really fun! Do try out all the funky features like invisible ink and confetti! Oh and do go to the App store through iMessage and you can download some free stickers to paste onto your messages!
Now you can delete Apple apps which you do not use - go ahead and delete podcasts, iTunes U.
Notifications appear differently now..a lot bigger and brighter...
Music app has been reworked. Now you can easily view bigger fonts and pictures in your libraries and you can let Apple automatically manage Downloaded Music if you run out of storage space.
Mail app upgrade - now you can filter messages easily with just a tap, unsubscribe from mailing list with a single tap. Scrolling through emails threads are a lot easier.
Prioritize Download if you have 3D touch enabled device. Just press and hold on an app and select from a list of options.
Control Center changes. Now it is more troublesome for me to unselect my iPhone from airplaying to my car stereo whenever i start the car. By default, it will always connect automatically whenever i start the car, i always wanted to listen to the sounds of my phone when i am playing a video while listening to radio, i will need to manually switch it to iPhone mode. Now i have additional step which i have to swipe right after bringing up control center. Now the icons are a lot bigger than before.
Mark photos more easily now! Yes previously in iOS 9, i was only able to do markup on a photo using the Mail app, now photos can be directly drawn on in the Photo app. You can even create a zoom in on a particular spot in the photo. Good for highlighting something in the photo.
Add widgets in notification center easily. Now more apps can be added to notifications. I have a long list of things i could add but it will clutter my notifications.
New Bedtime option within your alarm app - now your phone can notify you when to sleep if you need 8 hours of sleep according to your waking up time input. Too bad i can't add another option for weekends as i wake up different times during the weekends.
Launch camera app more easily when your phone is locked by swiping right.
Siri is now able to work with apps - have not tested this yet.
Apple Maps - now maps is smarter by enabling you to state the regular places you travel to like Home and Work (this is available in Google Maps) and telling you where you last parked your car. Will need to compare it against Google Maps though
Photos! When you first upgrade to iOS 10, the photos app will need to re-index your photos as they will try to sort them out for easier searching later on. Now it has new folders which are able to detect people, places etc. There is even a memories section where you can view past photos from last year of last 3 months ago. Like what Facebook sometimes churns out.
There is a lot slew of things you can do and it is almost impossible to list all of them as some are minor while some are major. Have fun with the new update!