We have just released the new HATSUNE MIKKU NT library (version 1.0.0.7) installer.
Piapro Studio NT version 3.0.4.0, which supports the new libraries, has also been updated.

Since this update includes a library update & additional libraries, please download and install the product data from the “DL/LICENSE” of HATSUNE MIKU NT by logging into your SONICWIRE account from the following page of our website.
https://sonicwire.com/mypage/license
* Be sure to unzip the zip file before launching the installer.

The following improvements have been made to the MIKU NT Original library.

• Optimized the fluctuation of long vowels.
• Improved the sound quality of phonemes with many aperiodic components. (such as silent consonants and Whisper/Dark vowels)
• Adjusted phonemes to connect more smoothly with each other.
• Adjusted pronunciation settings to maintain naturalness and clarity of singing.
  You can switch between presets by right-click on a track in Piapro Studio and select Active or Normal from the “Expression Style of the Track” menu.)

Please see here for the details of the fixes in Piapro Studio 3.0.4.0.