[GNC] Data format compatibility between recent versions

[David Carlson]

John,

I was not clear.  I really wanted clarification from the developers.  I
suspect that you may not be using features that are not compatible between
the versions as I know that there are some features that are not backward
compatible.

David C

On Mon, May 14, 2018, 7:59 PM John Pastore <jrpastore at gmail.com> wrote:

> Not sure if you meant you need clarification from ME or ...?
>
> Anyway, here's my history:
>
> 1) Created original data file using GNC 2.6.12 on Ubuntu 16.04 LTS
>
> 2) Months later installed GNC 2.6.19 on Win 7 and copied datafile from #1
> with no issues.
> - this datafile included (1) monthly scheduled transaction and about (20)
> securities each with about (5) manual price history updates
>
> 3) Weeks later installed GNC 3.1 on Win 7 and used same datafile from #2
> with no issues.
>
> 4) Weeks later got Finance::Quote automatic price updates working via
> AlphaVantage on #3.
>
> 5) Days later copied datafile from #4 back to GNC 2.6.12 on Ubuntu.
> Everything looked fine including:
> - scheduled transaction notice for monthly transaction whose date had
> since passed by
> - price history for all securities including more recent entries from
> Finance::Quote
> - security details including (to my surprise) updated source for online
> updates to "Unknown:AlphaVantage" from "Single:Vanguard" (which had never
> worked) for all (20) securities.
>
> 6) Days later (just now) copied most recent datafile from #4 back to GNC
> 2.6.12 on Ubuntu just to see if prior success had been a fluke.  Everything
> still looks fine.
>
> Hope this history is helpful.
>
> John
>
> On Mon, May 14, 2018 at 6:22 PM, David Carlson <
> david.carlson.417 at gmail.com> wrote:
>
>> We need clarification on this because I recall seeing that files touched
>> by testing releases in the 2.7 group and 3.0 and 3.1 were changed so they
>> were no longer readable by releases prior to 2.6.21.
>>
>> David C
>>
>> On Mon, May 14, 2018 at 2:45 PM, John Pastore <jrpastore at gmail.com>
>> wrote:
>>
>>> I reviewed FAQ section 3.3, but it does not cover more recent versions of
>>> Gnucash.
>>>
>>> I use Gnucash 3.1 on Windows (7) and Gnucash 2.6.12 on Linux (Ubuntu
>>> 16.04
>>> LTS), soon to transition to 2.6.19 on Ubuntu 18.04 LTS.
>>>
>>> Data file portability appears to be fine in both directions, but I just
>>> want to make sure there are no specific cases that might result in data
>>> file corruption.
>>>
>>> Any advice much appreciated!
>>>
>>> John
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>>
>