How to upgrade to gnome 3.12 in Ubuntu Gnome 14.04 LTS

[Héctor Sales Llamas]

Hello, I read the explanation for that gnome 3.12 is not present in Ubuntu
14.04.

http://ubuntugnome.org/gnome-3-12/

I wonder that ppa are needed to upgrade to 3.12 gome in ubuntu 14.04 LTS

*"GNOME3 Team" team:*

https://launchpad.net/ ~ gnome3-team / + archive/gnome3


*GNOME3 Staging: *
https://launchpad.net/ ~ gnome3-team / + archive/gnome3-staging

*Next GNOME3:*

https://launchpad.net/ ~ gnome3-team / + archive/gnome3-next


*GNOME Testing PPA*:

https://launchpad.net/ ~ / + archive / testing


Best Regards.
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