Open Cortana searches with your default browser.
Fix crash when opening MSN news page
Hopefully fixes MoAppHangs for the FCU hack (only relevant to Store users)
This doesn't brings many improvements, but puts it in the Windows Store.
The Windows Store version is available for a dollar, however you can still grab it free of charge here (but you won't have automatic updates).
This addresses a security issue, fixes most common user bugs, and introduces a shiny new I N S T A L L E R.
It is recommended to upgrade to fix the security vulnerability.