Both Christmas and Valentine's are over, but Verizon doesn't seem to be aware of that. It has decided to wrap up its OTA updates with a bow and deliver them straight to your phone so you can enjoy some Marshmallow flavor before the end of winter.
Both the LG G3 and LG G4 are getting updated to Android 6.0, the former to version VS98546A and the latter to version VS98624C. Verizon details the new features with short descriptions and some screenshots so you can already go take a look and see how LG's flavor of Marshmallow will look like. There's Now on Tap, Doze mode, runtime permissions, silent mode, Direct Share, and more. The LG G4 is also getting Wi-Fi calling in its update.
As for the HTC One M9, we already knew that the update would roll today and Verizon is making good on that timeline. It's following Sprint and simultaneous with T-Mobile's release. The update to software version 3.37.605.7 brings all of Marshmallow's features that we mentioned above as well as Android Pay to the M9.
If you don't see a notification for the OTA update on your phone, be patient or go check for it manually. In the meantime, you can read the corresponding support document from Verizon at the source links below.