The new update is an important incremental update. This addresses various bugs and security issues. This update brings system and performance improvements to the device as well. For the full changelog, visit the source page (Verizon update website).
Steps to check OTA update manually
If you own the device then you can check for the OTA update notification on your device manually. As the OTA update always roll-out in batches, it should take a couple of days or so to arrive at all the units. Head over to the device Settings -> About Phone -> Software Updates -> Check for Update -> Download Now.
Verizon LG G3 Software update Timeline
