Well after a fresh round of guesses what will the version number of Android M will be, On August 17 2015, Google clarified that it will be releasing Android Marshmallow (code-named Android M) as version 6.0.
So finally one can successfully say that Marshmallow is not Android 5.2 or any other in the 5.xx series. It gets it's own numerical that is Android 6.0.
Google has now confirmed that Android M is Android 6.0 Marshmallow,final version of the Android M developer preview has also just been released.
The Google Developers blog post didn't mention many specifics for the Android 6.0 Marshmallow release, so details are still relatively sparse. It did say that the final Android 6.0 Marshmallow release date would be "later this fall".
Marshmallow brings new platform features such as fingerprint scanner and Doze power saving mode,but along with thah also offers new permissions model.Google Play is also made ready to accept API 23 apps via the Google Play Developer Console. At the consumer launch later this year, the Google Play store will be updated so that the app install and update process supports the new permissions model for apps using API 23.Which introduces stock fingerprint scanner support for Android 6.0 security.
Here's the short version from Google:
Android platform change :
Final Permissions User Interface – google updated the permissions user interface and enhanced some of the permissions' behavior.
API change:
Updates to the Fingerprint API – which enables better error reporting, better fingerprint enrollment experience, plus enumeration support for greater reliability.
Another surprisingly slow feature to make it to Android, the screen rotation function for the home screen has finally made an appearance. Now you can use your phone in landscape format both in apps and on the home screen.
App permissions :
First up, app permissions. As had previously been speculated, app permissions have been overhauled in Android M, with users now being able to choose to accept or deny individual permissions as they see fit. Permissions have also been simplified.
Permissions will now be requested the first time you try to use a feature, not at the point of installation. "You don't have to agree to permissions that don't make sense to you," Burke said, and used WhatsApp to give an example of how this works.
If you want to record a voice message, WhatsApp will prompt you with a one-time request for permission to use your mic: if you still wish to give it access and record the message, you can, but you don't have to. Android M is giving users greater control of the information apps can access, and this is a truly positive step forward for Android.
You can modify the permissions granted to apps at a later date in your Settings, or you can view permissions by type and see which apps have that permission granted. It's all about giving the user complete control over their Android.
MOBILE PAYMENTS:
This feature will let you make your payments using near-field communication (NFC) and host card emulation techniques for tap-to-pay services. You just need to unlock your phone, keep it near an NFC terminal and your payment is done, without opening any app. Google says when you add in your card details, a virtual account number is created to make your payments. Your actual card number is not shared with the store during the transaction.
According to Google, Android Pay will be pre-installed on AT&T, Verizon and T-Mobile devices and will be accepted in around 700,000 stores in the US which accept contact-less payment. Android Pay will replace the Google Wallet app. Android Pay can also be used to make in-app payments provided developers integrate Pay into their apps.
Fingerprint Support :
Google will "standardize support" for fingerprint scanners on phones running Android M. The new functionality will allow fingerprint scanners to be used not only to unlock phones, but to make purchases shopping in real-life or within Play Store apps.
Of course, your device will need a hardware fingerprint scanner to begin with, but with Google's full support, expect to see these appear on many more devices in the future.
Android M Ram Manager:
Google has introduced a new RAM manager to Android M with the aim of providing users with more accurate and comprehensible information regarding the maximum and average RAM usage of apps.
The menu can be found in Settings > Apps > Options (three dots button) > Advanced > Memory. Though it's a little hard to navigate to, the page offers a far clearer insight into app demands, and the overall effect they will have on your device.
With a reading of an individual app's RAM consumption, as well as how often it is running in the background, users will be able to better determine which apps should be removed in endless bid to increase device performance and battery life.
Power and charging:
Android M makes use of a new function known as Doze to improve device standby time. By using motion detectors, Android will recognize when devices haven’t been interacted with for a while, such as when a person is asleep or a device has been left on a table, to reduce background processes.
Burke said that Google tested two Nexus 9 devices, one running Lollipop and one running the Android M preview, and learned that M will provide up to two-times longer standby time. Even in Doze mode, your Android can still start alarms or notify you of priority notifications.
Android M also supports USB Type-C which provides faster charging, and lets users charge other devices with their phone.
Delete screen short :
The second version of the Android M developer preview has added a new delete option to the screenshot preview in the notifications shade. Previously you just had the option to share a screenshot from the notifications. Now you can delete it as well.
Remove status bar icon :
This is possibly my favorite new feature: toggles for which icons you see in the status bar. If, for example, you always have Bluetooth on and don't really need a persistent icon taking up space in your status bar, now you can simply remove it. The same goes for the Cast icon, hotspot, Do Not Disturb, alarm set, work profile, Wi-Fi, cellular data and more.
Storage gets a makeover:
Internal storage is always a hassle for smartphone users. Even with microSD expansion and USB On The Go (OTG) you always seem to need to keep an eye on available storage space. The new version of Android M introduces a simple line bar that shows how much space you have on your device with a breakdown of what is using up your internal storage.
Auto Backup and Restore For Apss:
Possibly the most interesting aspect of Android M not discussed in Google’s I/O keynote speech was Android Auto Backup and Restore for Apps. This feature will be used in conjunction with Google Drive to automatically backup app data and settings with a file size of 25 MB or less.
These backups occur no more than once per day, and run only when the device is idle and connected to Wi-Fi and power. The uploaded data does not count towards your Google Drive storage quota, and is encrypted.
If you lose your device or delete the app, your previous progress will be restored the next time you install it, and it even works with apps which are side-loaded or accessed through a third-party app store.
Dark Theme:
Buried within the Android M settings is a "Dark theme" option which transforms the menu background to a dark grey color rather than the normal pale shade. Currently this only affects the settings menu, not the app drawer, and its function is purely cosmetic. Still, it looks nice on our Nexus 6 and we hope it gets developed further.
Google Now:
Google Now has been improved upon once again in Android M. Focusing on three key ares: being aware of different contexts, providing answers and helping you take action, Google Now is now smarter than ever.
Google Now's context awareness understand over 100 million different places, so when you ask "How far is it to there?" Google Now know exactly which "there" you're referring to. This awareness is compounded by Google's Knowledge Graph, which understands one billion different entities, from sports teams to gas stations, TV shows to recipes.
Google chrome:
Chrome is also leaner and faster than ever before. Initially revamped with Android One devices in mind, where stable and speedy internet connections are not always possible, Chrome's new optimizations are set to arrive for everyone.
Chrome is now aware of network strength and can modify what you see as a result. For example, if your connection is bad, you might see colored squares rather than preview images in Search results. Optimized web pages will load four times faster and use 80 percent fewer bytes. You'll also see a memory usage reduction of up to 80 MB. Chrome will also support offline mode.
Google Photos:
Previously a part of Google+, Google Photos is now standalone photo and video storage and sharing service that provides unlimited free storage for up to 16 MP photos and 1080p video. That is seriously impressive.
The Google Photos service stores high-quality compressed versions of your photos and movies but doesn't store anything on your device, so you can search through thousands of photos at high speed and without bogging your device down with gigabytes of photos.
Google Photos is also powerful for search, as you'd expect. You can search by People, Places, Things and Types, which are all automatically created, and you can drill down in each of those categories to see, for example, every picture you have of a particular person, all without ever tagging them.
Sharing is also a breeze. You don't even need you contacts to have the Google Photos app. You can simply share a link that they can view in Chrome. If they are logged in they can easily download an entire album in seconds.
For know updates are avalible only for Nexus 5, Nexus 6, Nexus 9 and Nexus Player.
Soon we will provide the Download link for Android.