Upgrading to the 2.3.x Series

Firstly follow the general Keeping your Installation Up To Date guide and complete the upgrade. Then follow the simple instructions below:

In the TangoCMS 2.3.x series, the 'html' directory has now been renamed to 'assets'. Therefore any custom themes you have created will need to be moved to the new location of 'assets/themes/'. You can then delete the 'html' directory completely.