gnucash 2.3.9 cannot open older xml account

[Mike Leone]

Derek Atkins had this to say:
> Héder Balázs <balazs at rainstorm.org> writes:
> 
>> Hi,
>>
>> The linux distribution which I use (Frugalware, testing branch) has just 
>> upgraded Gnucash to developement version 2.3.9.
>> When I first started the new version I noticed that it couldn't open my older
>> account xml file which was created with Gnucash 2.2.9.
> 
> A distribution upgraded you to a TESTING version????  

Well, he does say it is the "testing branch" of his distro. What version 
would you expect in a "testing branch"? :-)