The Nexus 6 was seen running Android 5.1 with software update build LMY40 on the Chromium tracker.
Nexus 4 on (occam software) was seen running build LMY36B.
The Nexus 5 was seen running build LMY47E (the newest of the builds and approx 3 weeks old now.
What does the 5 or 6 character Google build name mean?
The first letter is the code name of the Android version release family, such as 'L' for Lollipop.
The second letter is a branch code, which allows Google to identify the exact code branch the build was made from.
The next letter and the two digits are the date code. For instance if you had a code LMY47B, The Y stands for Q1 2015 and 47 is the days within that quarter, which would be 16 February.
Finally, the last letter 'B' from build LMY47B is the version for that day, hence B is the second version of that particular day.
Changes in 5.1
Google brings back silent or mute mode which was missing in the previous Lollipop version
An improvement in stability and RAM management
Bug fixes and some changes for Material design
Nexus 4 on (occam software) was seen running build LMY36B.
The Nexus 5 was seen running build LMY47E (the newest of the builds and approx 3 weeks old now.
What does the 5 or 6 character Google build name mean?
The first letter is the code name of the Android version release family, such as 'L' for Lollipop.
The second letter is a branch code, which allows Google to identify the exact code branch the build was made from.
The next letter and the two digits are the date code. For instance if you had a code LMY47B, The Y stands for Q1 2015 and 47 is the days within that quarter, which would be 16 February.
Finally, the last letter 'B' from build LMY47B is the version for that day, hence B is the second version of that particular day.
Changes in 5.1
Google brings back silent or mute mode which was missing in the previous Lollipop version
An improvement in stability and RAM management
Bug fixes and some changes for Material design