We are still speaking about a software, that claims support for windows XP, not for all versions released after XP
Because TW notified me about that after an update caused TeamViewer Service to crash and it continued after every system reboot and after every attempt to run the software.
Because TW didn't warn me about potential issue while I was prompted to update.
Because TW didn't warn me when I manually installed newest version.
Because their system requirements does not say that, their website does not say that. Only support board, where you need to know what are you looking for.
Because most of the internet still uses ipv4, and see no reason why home user should have ipv6 installed in his local network - even f it's by default, it probably lies useless.
Because secure user might follow the rule "if you do not use - uninstall it" and remove it even on newer windows. This rule isn't some geeky trick, this is one of three basic security rules by mr. Krebs.
Because their installer could recognize if I have ipv6 installed, and install it on it's own - after all it has given enough permissions do do so.
Because they recognized the issue soon after releasing an update from 13.0.6447 to never one, and nine months is enough to give a birth, and they still didn't give a ... requisite to giving a birth and didn't fix the bug and fail to inform users before they install a software. They didn't even reply with "no, we do not plan to fix it", which is what I would require from serious, renowned company, that treats its users fairly.