In a April 5 blog post, Microsoft Security Response Center announced the advance notification for the April security bulletin release, which is scheduled for Tuesday, April 10.
"This month's release includes 6 bulletins addressing 11 vulnerabilities in Microsoft Windows, Microsoft Office, Internet Explorer, Forefront UAG, and .NET Framework," Microsoft stated.
"All 6 bulletins will be released on Tuesday, April 10 at approximately 10 a.m. PDT."
You can read more about the security releases in this ANS.
We Will update this post, on April 10 with more details of the security release and webcast.