If you are using Genesis framework for your blog then you must be aware that Genesis 2.0 is already in works and would be reaching to you very soon.
Genesis 2.0 is completely rewritten to support HTML 5 and have new css design. It will support responsive design out of the box also will have microdata support.
It is currently in BETA and you can install it on your test server for testing. There is one issue when you will try to upgrade, your child themes will not be compatible for the Genesis 2.0.
Good news is that it will not break anything on your site, if you upgrade to Genesis 2.0 and has an old child theme, it will work as Genesis 1.x.
But if you want to take full advantage of Genesis 2.0, you need to update your child theme to support HTML5 markups.
I am using Metro Child Theme on Makewebworld and have already converted it for Genesis 2.0. Here is how you can convert your installation.
Update Style.css for Genesis 2.0
The first thing, which you need to do, is update your style.css to use the new css tags. You can do it manually by changing tags one by one or you can use the link to convert XHTML markups to HTML5.
You can just paste your Style.css in that page and it will convert the CSS in the new format.
Just copy paste the css in Style.css and you are good to go.
To enable the HTML5 in Genesis framework, you need to update the Function.php. Its just one line, which needs to be added to that file.
Once this line is added to your Function.php , your blog is activated to use Genesis 2.0.
Correct Small Issues
Once you have done the above activities, you are up and running with Genesis 2.0. This does not mean that you are done, there are small issues which needs to be fixed before you start using it.
Setup Top Navigation
First issue which you will noticing is your top navigation is limited to left side and does not look like it was looking with Genesis 1.x.
To correct that you need to update the below function in your function.php. Just copy the below code and replace it in your function.php file.
This should fix your issue with top navigation.
After Post Widget
After post hook has been changed so you need to update that also.
Just replace this line with the old action and you should be able to use the after post widget.
There are some changes in Genesis 2.0 in terms of hooks also, so if you have some custom code you may need to update that also.
You can check this page to see which hook has been changed and you need to replace the name in your custom code.
If you are facing any more issue, mention it in the comments and I will help you out to correct it.