[Zope] How to move acl_users from a Zope 2.7.8 server to Zope 2.10.7 ?

[Aleksey Tsalolikhin]

On Sun, Jun 7, 2009 at 10:25 AM, Chris Withers<chris at simplistix.co.uk> wrote:
> Aleksey Tsalolikhin wrote:
>>
>> Hi.  I am moving a Web application from a Zope 2.7.8 server to 2.10.7.
>>
>> How do I migrate the users in acl_users from the Zope 2.7.8 server to
>> the 2.10.7 one?
>
> Why don't you just copy the whole Data.fs and start it on the new server?
>
> Chris

Thanks, Chris.   Is it safe to copy Data.fs from Zope 2.7.8 to 2.10.7?
 The internal format of Data.fs has not changed?

Or are you suggesting I try it and see if it works?

Thanks,
Aleksey