The attached documents should help you to make the upgrade process as smooth as possible. The upgrade itself is not restricted to BVMS software only. The supported software and firmware versions can be found in the release notes of the related BVMS version.
BVMS Operator Client has live issues (black image, the app closes by itself, pixelation of images, same camera shown in multiple cameos although it was only selected once, hibernation/power saving, part of the tree view seen in the Image Panes area). Follow this article and find out how you can check the basics for BVMS Operator Client live issues
In many cases a minimum and maximum retention time needs to be defined in a video surveillance systems due to legal requirements. While the minimum retention time defines the time period for how long video recordings need to be stored, the maximum retention time defines after which period of time the recordings have to be deleted. Thus, the minimum retention time is going to influence the amount of storage needed. The higher the minimum retention time the more storage space is required.
This article aims to provide concerned parties, such as customers, users, operators or consultants, with an overview of data privacy and protection related features of BVMS Person Identification. Moreover, this article describes how data, as processed during the Person Identification steps, can be classified. Finally, this article lists technical measures for data protection in the context of BVMS Person Identification.
Transcoding is the feature to display the streaming of live video as smooth as possible based on available network bandwidth. In this article you will find out why there is black image in Op. Client (Transcoder not available)
The validity of the SMA date should cover the BVMS version release date you wish to upgrade to. Otherwise, the upgrade will not work and you will get the message "It is not possible to upgrade the software of this System Info file to a newer version".
Also, please note that this message could occur in case you are trying to upgrade your BVMS and it is on the latest available version released.
According to the release note of the Video Security Client (page 3), you will notice that it is specified that the export of the mp4 video using the Video Security App on iOS or Android device is not possible, while for PC should work without issues.