Mobile app technology and app industry are evolving at a very astounding rate every single day. Android being the major platform for smartphones across the globe still lacks in some attributes when compared to all-time rival iOS. Since last two upgrades Goggle is kept enhancing the Android with substantial fixes and improvements. Now with the developer&#39;s preview version of the Android O, Google showed that it will be the solution to all the problems in the prior version.Every Version brings some major updates along with many small fixes that in some manner eases the user. Likewise, Android O also solved the SMS authentication issue or process the user has to go through will installing a new application. Along with this, there is one more enhancement in updates for the devices Google has taken seriously while developing Android O.More Convenient to Upgrade devices For ManufacturersUnlike the iOS, the Android is always troubled in the field of updates and Fragmentation is the major concern till date. But recently Google revealed that with Android O they solved this issue permanently. Android O let the manufacturers upgrade their devices to a newer version more fastly, easily and less cost.According to the company, this new feature represents the biggest change in Android architecture since a long time. Usually, a lot of codes need to be rewritten across the Android and deliver it to the vendors so they can upgrade their devices to the compatible version.With this project which named &#39;Treble&#39; vendors can make available the update to the devices quickly without waiting for chipmakers like Qualcomm to modify the code to run with their chip. The process id trimmed by the company with Android O embedded with Treble so the vendors can provide an updated version to the consumers quickly than ever.According to the Google, the project Treble is working efficiently in Developers Preview on the Pixels, but the to test the true efficiency we have to wait for the rolling out of the new update.Improved SMS AuthenticationAlong with this major change in the Android, there are some small tweaks also which is intended solve the small issue of the users. Authentication done by the app while installing for the first time via SMS is changing by dedicated API in the Android O, so apps no longer have to ask for &nbsp;SMS permission.Till now in order to verify the mobile number of the user application need the code sent to the user&rsquo;s number, either user can mention it manually or allow the app to read SMS and take it automatically.There are basically two issues with this process, the first app only need to know code from this particular message so it is unnecessary to give permission to see all the SMS history. Secondly, the SMS contains the verification code is nothing more than a junk in the inbox after the verification.The New API saves the user from both the problems as the application can inform the system that they are expecting a verification code message shortly. Thi is done by creating Pending intent of the type Create an app specific Sms token.It&#39;s all about creating a single use app-specific incoming SMS request for verification. This incoming message includes a token needed for the verification and its good for one use only. The token message is never sent to the inbox after the message is received for the verification, the SMS with the token is routed as the normal.An app can have only one request at a time, the pending request for an app will be replaced by the new request.Final WordsGoogle is still testing the new version of the Android in every aspect and revealing new features on by one. The tech giant wants this upgrade of the Android to be best so far and flawless that&#39;s why it&#39;s still working hard on it. Android O is going to change the Android phone functionality by taking the things to new level. There is still some feature in Android O that we will come to know in the coming time.