http://www.androidpolice.com/2015/10/05/android-6-0-factory-images-are-live-for-the-nexus-5-6-7-9-and-player/
Android 6.0 Factory Images have gone live for the Nexus 5, 6, 7, 9, and Nexus Player
http://www.androidpolice.com/2015/04/02/android-5-1-1-spotted-in-sdk-manager-suggests-new-lollipop-update-is-right-around-the-corner/
looks like Android 5.1.1 is just around the corner
just a few fixes, not the memory leak
http://www.androidpolice.com/2015/03/25/changelog-posted-for-android-5-1-0_r1-lmy47d-to-5-1-0_r3-lmy47i-mostly-small-fixes-for-sim-cards/
It was mentioned that this was the update where they were to be implementing the fixes for memory and WiFi/Bluetooth dropping out, as well as a number of other things they left out in the initial release of 5.0
http://www.androidpolice.com/2015/03/09/google-officially-announces-android-5-1-rollout-starts-today-dual-sim-support-hd-voice-and-device-protection/
Nexus 4, 5, 6, 7 and GPE devices have another update inbound starting today. Look out for build LMY47D
http://android.clients.google.com/packages/ota/google_hammerhead/785a2f7af3718dba7e569decde8b6c4dc476a309.signed-hammerhead-LRX22C-from-LRX21O.785a2f7a.zip
here's the OTA for anyone running 5.0, just gotta sideload it through ADB
Android 5.0.1 for the N5 apparently starting roll out today, according to Sprint
http://www.droid-life.com/2014/12/15/nexus-5-gets-android-5-0-1-update-today-according-to-sprint/
yes it will wipe your device, so if you want to save anything, store it on your computer.
Just let it do its thing, eventually it'll boot, it's just updating the system.
final build is beautiful, though be prepared for your phone to be sitting for quite sometime as its going to be updating everything for at least 15-20 mins
http://www.androidpolice.com/2014/10/15/its-officialandroid-l-is-android-5-0-lollipop/
Looking at the changelog, looks like Lollipop has native wi-fi calling built in. Coming to the Nexus 5, 7, and 10 in the coming weeks