This update includes improvements to functions as listed below.
The exact changes may differ depending on your device model, country, and service provider.
To get the best from your device, please keep your device up to date and regularly check for software updates.

Galaxy S6 (SM-G9209)

Build Number : G9209KEU2ERI2

Android version : Nougat(Android 7.0)

Release Date : 2018-10-05

Security patch level : 2018-09-01

- "OperaMax" service will be terminated. "OperaMax" application will no longer be available and will be deleted.
- The latest Android security patch has been applied.
ㆍDevice security has been further enhanced.

Build Number : G9209KES2ERD1

Android version : Nougat(Android 7.0)

Release Date : 2018-05-09

- The latest Android security patch has been applied.
ㆍDevice security has been further enhanced.

Build Number : G9209KEU2ERA2

Android version : Nougat(Android 7.0)

Release Date : 2018-03-19

- OS upgrade - Android 7.0 Nougat
- Provides new UX
- Improved usability of the Notification feature and Quick settings button
- Improved usability of the Multi window and setting menu
- Efficient space for installation of downloaded apps, improved speed of system upgrade and app installation
- Clock usability has been improved
- A new app Samsung Members has been added
- The apps eWallet / 悦Me will not update anymore, and they will be deleted if you make Factory data reset.
- The latest Android security patch has been applied.
ㆍDevice security has been further enhanced

※ The Festival effect will not be supported from this version onwards, and any related content that you downloaded previously will not be supported either.
※ If you are using Gear device, please make sure to update "SVoiceprovider" to the latest version after upgrading to the Nougat OS, by the following steps: Galaxy Apps→Personal icon at the top right→Updates→update "SVoiceprovider".
※ If you are using Gear IconX, please make sure to update to the latest version before upgrading to the Nougat OS.
※ Samsung voice input function in keyboard will be disable as default, you can enable it according to the following steps: Settings→General management→Language and input→Virtual keyboard→Manage keyboards→enable"Samsung voice input"
※ Some apps that haven't been optimised for Android Nougat might not work properly after the upgrade. In this case, upgrade the app to the latest version via Galaxy Apps.
※ The functionality of some features may differ after the upgrade. Some apps may not function normally.
※ Errors during the upgrade may cause data loss. Back up any important data before upgrading.

Build Number : G9209KEU2DQG2

Android version : Marshmallow(Android 6.0.1)

Release Date : 2017-08-01

- The latest Android security patch has been applied.
ㆍDevice security has been further enhanced.

Build Number : G9209KEU2DQD1

Android version : Marshmallow(Android 6.0.1)

Release Date : 2017-05-11

- The latest Android security patch has been applied.
ㆍDevice security has been further enhanced.

Build Number : G9209KEU2DPK3

Android version : Marshmallow(Android 6.0.1)

Release Date : 2016-12-02

- Improved performance.
ㆍThe Stability of Samsung Pay Function has been improved.
ㆍSmart manager function improved.
ㆍImproves the functionality of the various appㆍspecific.(My File, Message, contact etc.)
- Other bug fixes
ㆍFixes an issue that screen lock type display error
ㆍFixes an issue that force close happened when security policy updates.
ㆍFixes an issue that AiYueDu app is not performed
- The latest Android security patch has been applied.
ㆍDevice security has been further enhanced.

Build Number : G9209KEU2DPG1

Android version : Marshmallow(Android 6.0.1)

Release Date : 2016-08-04

- Added new feature
ㆍ"Samsung pay" function has been added.
- Improved performance
ㆍHaptic vibration improvements
ㆍWLAN Security improvements
- Other bug fixes
ㆍFixed an issue that the screen flickered while using auto brightness under strong sunshine
ㆍFixed an issue that terminated when using the contact widget
ㆍFixed an issue that Taobao app is terminated when using multiㆍwidows
ㆍFixed the issue that VIP mode topbar tips can not be closed after update to android 6.0.
ㆍFixed the issue that CTC card of APN(Access Point Name) is lose after update to android 6.0.
ㆍFixed the issue that user can't login or register normally when using some apps(Besttone, Yueme)
ㆍFixed the issue that UC Browser always refresh
ㆍFixed the issue that some applications can't be terminated by Smart Manager.
ㆍFixed an occasional issue that can not make a call or a message after the OS update.
ㆍImproved the keypad function stabilty of the device.
ㆍImproved the message stabilty
- The latest Android security patch has been applied.
ㆍDevice security has been further enhanced.

Build Number : G9209KEU2DPC4

Android version : Marshmallow(Android 6.0.1)

Release Date : 2016-03-28

- OS upgrade : Android 6.0 Marshmallow
ㆍThe new TouchWiz provides a brandㆍnew visual design and enhanced usability
ㆍQuick connect makes device connection more convenient
ㆍFingerprints combined with pattern, PIN and password provide enhanced security for lock screen function
ㆍAdvanced Network power saving mode restricts background data and extends battery life
ㆍApply the new vibration mode
※ After upgrade, please update Gear manager to latest version when Galaxy Gear, Gear Fit are to be used. (Gear device will be initialized when the latest App is installed.)
※ Email, UC Browser, and Samsung magazine widgets may disappear on home screen after OS upgraded, please set these widgets or relative application again if you used.
※ After upgrade, Samsung Reader is substituted for Samsung Magazine. Samsung Reader provide Eㆍbook contents additionally.
※ Some apps may be incompatible after OS upgraded. please update the apps to the latest version via Galaxy Apps.
※ Please update themes which are downloaded in LL version.
※ Smart stay may disappear in quick panel.
※ bubbles function may disappear in messages settings.
※ Custom CTC APN will be removed after the upgrade.
※ Android 6.0 Marshmallow does not support the Decrypt device function anymore.
If encryption function is not used anymore, Please disable encryption before the device is upgraded.
(Settings →Lock sreen and security → Other security settings → Disable encrypt device)
※ Smart manager widget removed Battery and Security function. Storage and RAM function will be remained.
※ After Upgrade, Private mode doesn't support Internet browser.
(Internet APP support Secret mode additionally.)

Build Number : G9209KEU2COLB

Android version : Lollipop(Android 5.1.1)

Release Date : 2016-01-13

- Sogou Engine Porting in Samsung Keypad.
- Improved performance with efficient memory management
ㆍOptimized closing unused applications
- SW Update improvement ( Schedule Update, Update Notice function )

Build Number : G9209KEU2COJA

Android version : Lollipop(Android 5.1.1)

Release Date : 2015-10-29

- Upgrade the Smart Manager
- Improved the FOTA speed
- Improved heating problem in some cases(playing specific game)
- Apply the Andriod regular security patch
- Performance improvement by efficient system management

Build Number : G9209KEU1COI7

Android version : Lollipop(Android 5.1.1)

Release Date : 2015-10-01

- Performance improvement by efficient system management
ㆍOptimize period of closing unused applications
- Icons of some preload applications are changed
- Eㆍmail function is stablized
- Add new browser function (Night mode and etc)

Build Number : G9209KEU1BOH2

Android version : Lollipop(Android 5.1.1)

Release Date : 2015-08-19

- Improved fingerprint recognition
- Enhanced eㆍmail security
- Optimized battery consumption
- Noise reduction over speakerphone

Build Number : G9209KEU1BOGB

Android version : Lollipop(Android 5.1.1)

Release Date : 2015-08-10

- OS upgrade : 5.1.1 (Lollipop)
- Performance improvement by efficient memory management
ㆍClosing applications which have not been used for a long time automatically
ㆍAutomatic removal of unnecessary files
ㆍNotifying unstable applications
- Optimization of battery usage time
- Security Enhancements
- Improved the User Interface and stability
- New and / or enhanced features.

Build Number : G9209KEU1AOE4

Android version : Lollipop(Android 5.0.2)

Release Date : 2015-05-15

- Improved Fingerprint recognition process
- Added new feature in Photo editor
- Improved compatibility with accessories
- Enhanced interface of Email, Music, S planner and other apps