[Samba] client max protocol = SMB3 ?

[Reindl Harald]

Am 06.12.2016 um 00:51 schrieb Andrew Bartlett via samba:
> On Mon, 2016-12-05 at 13:15 -0600, Chad William Seys via samba wrote:
>> Hi All,
>>    The man page for smb.conf says that 'client max protocol =
>> default'
>> is the same as 'client max protocol = NT1' for the HEAD samba
>> version.
>>
>>    Is there some reason I should not change that to SMB3?
>
> Because Unix extensions were not specified for SMB2/3, and we don't
> know at protocol negotiation time if the client (user) wants to use
> unix extensions, we are a bit stuck

but how is that *now* different to current stable releaes?
besides unix extensions only making troubles and should default to off

https://www.samba.org/samba/docs/man/manpages-3/smb.conf.5.html
Default: client max protocol = SMB3