Roger, Adrian Monteleone gave a brilliant answer to this in the past. I can't work out how to link to his reply so, with apologies to Adrian, his reply was as follows :- ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________ Per the FAQ in the Wiki, only upgrading from one major to the next major release is supported. Skipping major releases is *not* supported.
Thus for you, 2.6.21 > 3.11 > 4.2 would be okay. However, 2.6.21 > 4.2 *might* result in issues which *may* include data loss or corruption. (no guarantees either way) You might get lucky, you might not. You might not, and not realize it for some time depending on the nature of the corruption/loss. Properly upgrading *should* result in custom reports and other settings being migrated properly. There were some migration issues with the early 3.x series, but that was solved at some point. (not sure of the cutoff release, see release notes starting with 3.0 till about 3.3 or so if curious.) Also per the FAQ and the Wiki, after opening your data file for the first time with each new major version, you should run Action > Check & Repair > Check & Repair All to make sure your book is adjusted to reflect any changes to how GnuCash internally records data. This also can prevent previous versions from reading the file after this point. (this will vary by book, according to what features you were using in the prior edition) The release notes for 3.0 and 4.0 should detail these changes. Regards, Adrien ____________________________________________________________________________ ____________________________________________________________________________ __________________________________ The only difference is that GnuCash is now on version 4.5 rather than 4.2. As you're coming from 2.6.21 on Windows 7 you should be able to install 3.11 on Windows 10, and use the data file from your Windows 7 PC. Good luck. Alan A Holmes -----Original Message----- From: gnucash-user <gnucash-user-bounces+gnucash=alanaholmes.me...@gnucash.org> On Behalf Of Roger Oliver Sent: 07 April 2021 01:31 To: Gnucash <gnucash-user@gnucash.org> Subject: [GNC] Migrating and updating version 2 to 4 I'm running GnuCash 2.6.21 on a Windows 7 computer. I need to migrate the system to a Windows 10 computer. Just need to be sure I understand any complications I may encounter. Some questions. 1. Will I have any problems updating to version 4? 2. Reading about version 4 on the GnuCash website, I think the only thing we won't be able to migrate will be the saved customized reports and preferences. Is that correct? 3. Am I reading the manual correctly that all we need to migrate our data is to copy the current data file to the location where version 4 keeps these files. Is that still Documents/GunCash? 4. As in the past, will version 4 update the data file automatically? Probably obvious answers, just that we update once in a blue moon. Hope I haven't overlooked any protocols for this group. Thanks so much for the help, Roger _______________________________________________ gnucash-user mailing list gnucash-user@gnucash.org To update your subscription preferences or to unsubscribe: https://lists.gnucash.org/mailman/listinfo/gnucash-user If you are using Nabble or Gmane, please see https://wiki.gnucash.org/wiki/Mailing_Lists for more information. ----- Please remember to CC this list on all your replies. You can do this by using Reply-To-List or Reply-All. _______________________________________________ gnucash-user mailing list gnucash-user@gnucash.org To update your subscription preferences or to unsubscribe: https://lists.gnucash.org/mailman/listinfo/gnucash-user If you are using Nabble or Gmane, please see https://wiki.gnucash.org/wiki/Mailing_Lists for more information. ----- Please remember to CC this list on all your replies. You can do this by using Reply-To-List or Reply-All.