I had a whole slew of backups
Code:
02\08\2012\.kobo\version
KG3172104949A,2.6.35.3,2.0.3,2.6.35.3,2.6.35.3,00000000-0000-0000-0000-000000000310
05\08\2012\.kobo\version
KG3172104949A,2.6.35.3,2.0.3,2.6.35.3,2.6.35.3,00000000-0000-0000-0000-000000000310
28-12-2012\.kobo\version
KG3172104949A,2.6.35.3,2.3.2,2.6.35.3,2.6.35.3,00000000-0000-0000-0000-000000000310
31\07\2012\.kobo\version
KG3172104949A,2.6.35.3,2.0.3,2.6.35.3,2.6.35.3,00000000-0000-0000-0000-000000000310
Backup - Feb 3 - 2013\.kobo\version
KG3172104949A,2.6.35.3,2.4.0,2.6.35.3,2.6.35.3,00000000-0000-0000-0000-000000000310
July 17\.kobo\version
KG3172104949A,2.6.35.3,2.0.0,2.6.35.3,2.6.35.3,00000000-0000-0000-0000-000000000310
02\03\2012\.kobo\version
KG3172104949A,2.6.35.3,1.9.17,2.6.35.3,2.6.35.3,00000000-0000-0000-0000-000000000310
14\10\2012\.kobo\version
KG3172104949A,2.6.35.3,2.1.4,2.6.35.3,2.6.35.3,00000000-0000-0000-0000-000000000310
4-4-11\.kobo\version
00:08:54:E5:7E:EE,Mobile,1.9,Mobile,Mobile,00000000-0000-0000-0000-000000000210
Dec 13\.kobo\version
KG3172104949A,2.6.35.3,1.9.14,2.6.35.3,2.6.35.3,00000000-0000-0000-0000-000000000310
June 28 - 2012\.kobo\version
KG3172104949A,2.6.35.3,1.9.18,2.6.35.3,2.6.35.3,00000000-0000-0000-0000-000000000310
July-26\.kobo\version
00:08:54:E5:7E:EE,Mobile,1.9,Mobile,Mobile,00000000-0000-0000-0000-000000000210
Sep 9 - 2012\.kobo\version
KG3172104949A,2.6.35.3,2.1.2,2.6.35.3,2.6.35.3,00000000-0000-0000-0000-000000000310
Kobo-Sep-26\.kobo\version
KG3152502577A,2.6.35.3,1.9.10,2.6.35.3,2.6.35.3,00000000-0000-0000-0000-000000000310
So all of these show the 2.6.35.3 code. One of these Kobo's was bought the day they went on sale, the other a few months later.