I'm not sure, but you'd better be safe and update the payloads anyways. The native_firm wasn't changed at all, they just blocked browserhax and menuhax. So technically, the 10.5 payloads should work.
Normally, I'd update then update the payloads, but I'm refraining from updating, since the 10.6 ninjhax payloads aren't out yet.I personally didn't tried, but I read that it works.