All date (transactions, …) are wrong in gnucash 2.7.x when I open my sqlite gnucash file I use to edit with gnucash 2.6.

my guess is that the old sqlite date format is not understood well with the new gnucash sqlite backend (with seems to use sqlite date primitives not available earlier).

An old transaction, with a date at (sqlite file) 20170127105900 is displayed as “13.12.2017”.
New created transactions have sqlite date styled like : 2018-01-03 16:06:06
(default of datetime() sqlite function …)

So gnucash 2.7.x is unusable for me (my files from sqlite 2.6 backend won’t have any meaning).