Pra quem não quer esperar até o meio de outubro
Um bom artigo sobre a versão.
Para obter a versão 12.10 usando o linux (12.04 lts)
You can easily upgrade over the network with the following procedure.
- Run the update-manager -d application from the Unity Dash or a command line
- In Update Manager, click the Settings… button, and enter your password to start the Software Sources application.
- Select the sub menu Updates from the Software Sources application.
- Check the “Release upgrade - Show new distribution releases” drop down to make sure “Normal releases” is selected, and change it if otherwise.
- Close the Software Sources application and return to Update Manager.
- In Update Manager, click the Check button to check for new updates.
- If there are any updates to install, use the Install Updates button to install them, and press Check again after that is complete.
- A message will appear informing you of the availability of the new release.
- Click Upgrade.
- Follow the on-screen instructions.