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From: Gabor Radnai <gabor.radnai@gmail.com>
Date: Wed, 30 Mar 2016 11:31:29 +0200
Message-ID: <CABnVG=eYEzGamSMN6CZYJhRLfjry6cQVq=MsJaPShO_WeFwttA@mail.gmail.com>
Subject: Re: FreeBSD ZFS snapshots and "previous versions"
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Hi,

If I understand correctly OP wants to use Windows feature called 'Previous
Version' off from BSD filer.
This can be done on FreeBSD + Samba4 adding followings to smb4.conf:

        vfs objects = shadow_copy2
        shadow:format       = %Y-%m-%d_%H.%M.%S--1h
        shadow:sort         = desc
        shadow:mountpoint   = <path-to-share>
        shadow:snapdir      = .zfs/snapshot
        shadow:localtime    = yes

format is customizable and zfs snapshot should be aligned accordingly
obviously.

Hope it helps.