v+ mini solo 2 Lornisun V3 image

Hi, can you tell me if I need to do the update from v3 to v4 so I could use the newest images? Which images would those be and in which download section, because I can no longer see the image in download section for v+ mini solo 2, as before or should I search in the download section for V+solo2? And overall, is there a possibility of jtag for this clone? Thank you.

AW: v+ mini solo 2 Lornisun V3 image

Update is for Solo2, Solo2 Mini and Solo2 SE. Image must be a Solo2 image.