Windows phone has a latest update which is of version Windows Phone 7.10.8773.98 and it has some set of improvements which makes the device work efficiently. With this release and the earlier versions we can see the below list of new features which can be installed by connecting your device to the Zune and updating it frequently. Below are some of the updates which we can see in the release,

Update 7.10.8773.98

• Adds new messaging capabilities to your phone. You can now attach multiple pictures, videos, audio notes, and ringtones to text messages.
  Includes many other improvements to Windows Phone.

Update 7.10.8107.79

• Fixes an issue to prevent the keyboard from disappearing during typing.
• Fixes a Google mail syncing issue.
• Fixes a location access issue. With this fix, the Me feature in the People Hub sends anonymous information about nearby Wi-Fi access points and cell towers to Microsoft only if you agree to allow the Check In function to access and use location information.
• Revokes digital certificates from DigiCert Sdn Bhd to address an encryption issue.
• Fixes an email issue related to Microsoft Exchange Server 2003. With this fix, when you reply to or forward a message, the original message is now included in your response.
• Fixes a voicemail notification display issue that occurs on some European and Asian networks under certain conditions.