While Samsung has already begun Android Marshmallow treatment for its smartphones starting with Galaxy S6 and its curved screen variant Galaxy S6 Edge, the update will not be too far for other Galaxy devices. The next Galaxy devices expected to get the update are Note 5, Note 4, Note Edge, Galaxy S5, Galaxy Alpha, Tab S2 8in and 9.7in.
The Marshmallow update for Note 5, Note 4, Note Edge, Galaxy S5 and Alpha has already been approved. The rollout for the Note 5 is expected in March, whereas the Note 4 and the Note Edge will get it in April. The rollout for Galaxy S5 and Alpha is likely to happen in May and June respectively, according to a leaked Samsung document obtained by PhoneArena revealing the update roadmap. It further suggests the update for Galaxy Tab S2 8in and 9.7in is in the testing phase and the estimated time of the rollout is noted as May.
Upon updating your device to Android Marshmallow, you should be able to take advantage of a bunch of goodies including Samsung Internet version 4.0 featuring better privacy and functionality and Cross App that lets users access useful apps while inside the messaging app.
You can also enjoy the new power saving modes such as Doze and App Standby. The update supports MIDI protocol that lets users retrieve a list of audio devices connected to the system. There is also dynamic playback that lets you adjust the audio when playing a video. Apart from these, the Galaxy handsets eligible for Marshmallow will get over 100 new emojis from Unicode 7.0 and 8.0.