You're going from Bootstrap 2 to Bootstrap 3, which is essentially a 
different framework with different layout, class names, etc. So, it's just 
like any switch in front-end UI -- you may have lots of little changes to 
get your markup to work properly with the new framework. See 
http://getbootstrap.com/migration/. Also, be sure to use the Bootstrap 3 
formstyles for forms.

Anthony

On Saturday, November 14, 2015 at 11:38:32 PM UTC-5, lillian wrote:
>
> Hello,
>
> I have an existing web2py app and would like to have access to the updated 
> bootstrap/css/js components in the 2.12.3 release.  What is the best way to 
> approach this?  I tried updating from the admin page, recreating the 
> welcome app, then copied over the new js/css dirs and layout.html into my 
> app.  Afterward I could use things like the jumbotron but the styling of 
> most everything else is a mess.  Missing icons, incorrect alignments, 
> dropdowns missing carets, etc.
>
> Is there a better way to do this or do I have to go in and work out all 
> the problems by hand?
>
> Thanks!
>
>

-- 
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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