Dalvik/2.1.0 in Android's version more than 5

I installed Packet Capture on my android and did some scans because this topic . So, I saw Dalvik/2.1.0 in a log of WhatsApp on port 80. Since Dalvik/2.1.0 should be prior that Android 5, is it normal I saw this on my LG X Power that has Android 6.0.1?