[opencms-dev] Query Regarding Upgrade Process from OpenCMS 10.5.1 to 19

[Michael Emmerich]

Hello Nivedita,

it depends a bit what you mean by "updating OpenCms 10.5.1 to OpenCms 19".

If you update the OpenCms system itself, this has no effect on your 
templates and websites. You "just" update the core system and as the 
result you will have some changes in the UI, but your websites and 
content stay the same.

The update of the OpenCms core can be done with the updater from the 
OpenCms website. As wit all major updates, it is a good idea to make a 
backup of your existing system first (web-application and database)

After the update, the website and your template works as before.


The other thing is if you want to update your website with a new 
template. Or to say, to make a relaunch with a new template. This is 
nothing that goes automatically like the core updater. Here it would 
make sense to make this sub-site by sub-site. Maybe it would be make 
more sense to set up a new OpenCms 19 in parallel to the existing one 
and rebuild the headquarters and sub-sites step by step. But this is 
hard to say which is the best solution without knowing whit is there 
right now and what should be thee on the new system.


Kind regards,

Michael


Am 08.08.25 um 07:00 schrieb niveditasheoran via opencms-dev:
> Hello
>
> We have a site–subsite system developed using OpenCMS 10.5.1, as shown 
> in the
> attached snapshot. In our setup, nvs serves as the headquarters 
> website, under
> which nvs-school has multiple subsites.
>
> We are planning to upgrade OpenCMS to version 19 and would like 
> clarity on the
> upgrade process for this type of structure. Specifically, should the
> headquarters site and its subsites be upgraded separately, or can the 
> upgrade be
> performed for all at once?
>
> As I am new to this, I would appreciate your guidance to ensure the 
> process is
> handled correctly.
>
> Kind regards,
> Nivedita
>
>
>
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-- 
Michael Emmerich
  
Alkacon Software GmbH & Co. KG - The OpenCms Experts
http://www.alkacon.com
http://www.opencms.org
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