One of the distributors on their own website show both version 8 and 9:
https://www.minet.jp/brand/modartt/top/
and
https://www.minet.jp/brand/modartt/pianoteq-9/
"Modartt Pianoteq 9 features a new audio engine that improves on the soundboard's vibration model to further enhance stereo and spatial depth.
The sound of the electric piano and harp has also been improved, and the Harp Pack (sold separately) has a new "Italian Triple Harp".
It features a variety of new features, including the "Sombre" piano preset for expressive cinematic performances, a new microphone panel that allows you to intuitively position and mix up to eight microphones, hammertone parameters, and the "Thunder" pedal that creates a roaring fortissimo.
"Pianoteq 9" was reborn after three years of research
To an even more expressive and versatile physical modeling sound source suite
Enhanced soundboard model
PIANOTEQ 9 features a new audio engine based on an improved soundboard vibration model. This further enhances the stereo feeling and spatial expansiveness.
Each note creates a rich, lively swell, and the sound spreads out organically and shimmeringly, like ripples across the surface of a lake.
All grand pianos in the collection have benefited from this update and have been carefully revoiced. Experience the authentic touch and sound of playing on one of the world's best concert grounds.
New triple harp and improved electric piano
A new Italian Triple Harp has been added to the Harp Pack (sold separately). Its timbre, which originates from the Baroque period, has a tasteful and delicate sound, and is also ideal for accompaniment in the bass.
In addition, the MKII and Reeds models of the Electric Pianos Pack (sold separately) have been updated to improve dynamics in the Fortissimo band. It achieves a sound that is more expressive in detail and has a slightly rough "grit".
Expanded sound palette
All grand pianos now have an expressive "Sombre" preset. It has a silky-smooth tone and a high dynamic range, making it ideal for emotional and cinematic performances.
In addition, Felt presets, which feature a soft and intimate sound, are now available for historical pianos. Many instruments have been redesigned with binaural presets, allowing you to enjoy an immersive experience with headphones.
New interface features
Taking full advantage of the flexibility of physical modeling, the microphone panel has been redesigned. Up to 8 microphones can now be placed at any position in 3D space.
The mixing panel has also been revamped to provide intuitive control of stereo and multi-channel outputs.
Lively Expressive and Customizable
PIANOTEQ 9 continues to pursue more natural and pure instrument expression in cooperation with various piano manufacturers.
By calculating all the behavior inside the piano in real time, it responds to even the most delicate nuances of the performer. It reproduces the colorful and eloquent tones woven by each resonance.
Plus, you have precise control over every element of sound creation, allowing you to shape your ideal sound just the way you want.
Its perfection makes PIANOTEQ 9 the perfect choice for any environment, from home use to recording studios and concert stages.
Operating environment (support required)
System Requirements
Windows
OS: Windows 7 or later (64-bit)
CPU: Intel Core or AMD multi-core processor (2 GHz or higher recommended)
RAM: 4 GB or more
Disk space: Approximately 50 MB (when installed)
Audio: ASIO-compatible audio interface recommended
macOS
OS: macOS 10.11 or later (64-bit)
CPU: Intel Core or Apple Silicon (M1/M2/M3)
RAM: 4 GB or more
Disk Space: Approximately 50 MB
Linux
OS: Latest major distributions (Ubuntu, Fedora, etc.)
CPU: x86 64-bit processor
RAM: 4 GB or more
Disk Space: Approximately 50 MB
Plug-in support
Can be used as a stand-alone application
VST2 / VST3 / AU / AAX / NKS compatible
Download and Demo
A free trial version of Pianoteq 9 is now available.
Registered users can upgrade for €29 / $29.
For more information and a preview demo, please visit the official website (www.modartt.com)."
Steinway Model Ds, Shigeru Kawai SK-EX, Boesendorfer VC280