What's the latest opinion of risking a V3 to V4 firmware upgrade on this series of Hikvision NVRs, just not worth the risk? I use a DS-7608NI-K2/8P though have an unused DS-7616NI-K2/16P, more as spare as 8 cameras here seems enough, (so far).
Following the recent concerns flagged up on IPCT about vulnerabilities in Hikvivion firmware I've been checking today and I notice that there have been several updates of V4 firmware for this series of NVRs, it's named in the release notes.
Still best to stay with V3 firmware for these NVRs? Not having used V4 firmware I don't know what I'm missing, not much?