Motorola released Android 10 for the Moto Z4 last month and now it's rolling out to the units locked to Verizon's network. The firmware sports version QDF30.130-42 and brings in system-wide dark mode and improved notifications. It also includes the Android security patch that's dated March 1, 2020. The update is rolling out over the air and should reach all the units locked to Verizon's network in a few days. Source | Via
Source: https://www.gsmarena.com/moto_z4_verizon_android_10_update-news-42371.php