As per version 1.1 of the official Twitter API system, make sure to fill the required Twitter API settings in the "Theme options > Social" tab in order for the Twitter widget and shortcode to work.
Enhancements
Added support for self hosted videos
New and improved theme customization panel (with updated skin preset)
Bug fixes
Added compatibility with the Twitter API 1.1
Fixed image resizing issue on some servers
Minor bug fixes
2.1
05 Mar, 2013
Bug fixes
Minor bug fixes
2.0
04 Feb, 2013
Major release
Some of the highlights of this release:
Completely rewritten from scratch
Developed on the new The Happy Framework v 1.0
Added responsive support
1.2.5
26 Jul, 2012
Bug fixes
Fixed comments on pages
1.2.4
16 Jul, 2012
Bug fixes
Improved Multisite support
Minor bug fixes
1.2.3
15 Jun, 2012
Bug fixes
Added WordPress 3.4 support
1.2.2
05 Jun, 2012
Bug fixes
Minor bug fixes
1.2.1
07 May, 2012
Bug fixes
Minor bug fixes
1.2
30 Mar, 2012
Bug fixes
Minor bug fixes
Child theme support improvements
1.1
26 Jan, 2012
Bug fixes
Minor bug fixes
1.0.5
24 Jan, 2012
Bug fixes
Fix a bug when filtering a specific category on blog templates.
1.0.4
12 Jan, 2012
New features
Added the ability to filter specific categories on blog templates
Bug fixes
Improved the ability to install the theme to a folder named differently than "resolution"
Minor bug fixes & IE8 compatibility
1.0.3
19 Dec, 2011
Bug fixes
Contact form sender/recipient fix.
Added the ability to install the theme to a folder named differently than "resolution".
minor bug fixes
1.0.2
12 Dec, 2011
Bug fixes
Grid blog template improvements
minor bug fixes
1.0.1
07 Dec, 2011
Bug fixes
Home page template fix with if "static page" is set
Javascript fix for gallery
small bug fixes and compatibility fixes
New features
New Blog template with a grid style like portfolio