Yuan said:Yes it is safe. And since most new games/wiiware are using this IOS is good to update anyway.
I had to trucha my IOS 70 to run my wad wiiware from the SD card menu, but other than that...koji2009 said:The only time you have to worry about stub IOS actually breaking anything is if you're upgrading a system menu IOS. System menu IOS aren't used for games ever, so there is never any reason to update them. Likewise if you're just updating an IOS a game uses, you have no chance to brick your system menu... assuming of course you're installing the right IOS