[GNC] porting Gnucash from W10 to Linux Mint

[Michael or Penny Novack]

On 1/23/2025 11:32 PM, sunfish62--- via gnucash-user wrote:
> With regard to downgrading, note that there have been several points in GnuCash history where the data structures were changed that make downgrading difficult if not impossible. I cannot put my finger on the chart that notes those jumps, unfortunately.
>
> ⁣David T.​

If NECESSARY to "downgrade" (say multiple machines, not all able to use 
past version X, but some now on version X+n)

This can only be guaranteed by a process similar to opening new books. 
In your X+n version, close the books ans produce a Balance Sheet. Use 
the balance sheet to open new books on the machine using X. Now remove 
version X+n from the machine using that replacing with version N. You 
can now copy over the file which are the books at version N from that 
machine to the first.

Michael D Novack

NOTE -- the reason for the "close the books" is to zero out all the 
accounts of types income or expense. Makes opening new books possible 
from just a Balance Sheet. I am not saying you can't open new books with 
income and expense accounts open but more work.