http://googleblog.blogspot.ca/
Joining the party: Android 5.0 Lollipop
http://www.android.com/versions/lollipop-5-0/
Battery
Power for the long haul
A battery saver feature which extends device use by up to 90 mins
Estimated time left to fully charge is displayed when your device is plugged in
Estimated time left on your device before you need to charge again can now be found in battery settings
http://www.androidpolice.com/2014/10/15/its-officialandroid-l-is-android-5-0-lollipop/
Runtime and Performance
A faster, smoother and more powerful computing experience
ART, an entirely new Android runtime, improves application performance and responsiveness
Up to 4x performance improvements
Smoother UI for complex, visually rich applications
Compacting backgrounded apps and services so you can do more at once
Support for 64 bit devices, like the Nexus 9, brings desktop class CPUs to Android
Support for 64-bit SoCs using ARM, x86, and MIPS-based cores
Shipping 64-bit native apps like Chrome, Gmail, Calendar, Google Play Music, and more
Pure Java language apps run as 64-bit apps automatically
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A range of new professional photography features for Android Lollipop that let you
Capture full resolution frames around 30 fps
Support raw formats like YUV and Bayer RAW
Control capture settings for the sensor, lens, and flash per individual frame
Capture metadata like noise models and optical information
State of the art video technology with support for HEVC main profile to allow for UHD 4K 10-bit video playback, tunneled hardware video decoding to save power and improved HLS support for streaming