Found this link at Korg Forums, and among the info it seems like there will be a OS update v1.4 adding some missing and new features for Pa5X coming soon. 👍

https://www.korg.com/us/news/2025/0121/

Quote:
- Quick Record: Effortlessly capture your ideas with the new Smart Recording Environment.
- Full Song Edit: Enjoy a complete editing suite for perfecting your compositions on Pa5X.
- Style Creator Bot: Instantly generate custom styles from your MIDI files.

Hi,

Where is OS 4? Boy seems to be taking forever. This is a flagship model very expensive, I love it but support for improvements seem to be taking way too long

Coding for a firmware update takes a lot of time and effort, (They have to make sure it doesn't break something else, so a lot of testing is also done) and the more sophisticated the firmware (Arrangers are sophisticated) the more time it takes.

Download Python here and learn how to program (Code) some basic programs, you will then see just how time consuming it is.

Bill

Thing is, sure, it’s time consuming and complicated. That why they charge almost FIVE THOUSAND DOLLARS for one 😱🤬💸

Having paid them that UP FRONT, you shouldn’t be listening to excuses why they can’t get the damn thing to work as well as the previous model in THREE YEARS OF WORK.

It ain’t quantum computing, it ain’t curing cancer, it’s just coding a damn arranger fer chrissake…. It has NEVER taken Korg this long to get a product to work before. NEVER. It has never taken ANYONE three years (and counting) after a product’s launch and they still aren’t anywhere close to fixing it up to be as capable as a PA4x.

Personally, had I ponied up nearly five grand THREE YEARS AGO and was still waiting for it to work right, I’d be looking for a lawyer…

Maybe some of you can drop five grand, wait three years and still not give a damn it isn’t working right, but that ain’t me..! I doubt I’d have waited one year.

If hundreds (thousands) of people ponying up $4500+ isn’t enough to put a team together to fix it in a few months, it should NEVER have been released. 🤬🙄

Right On Mate.

Look I love the dam thing, but it’s been way too long now and I suspect that they will announce a new model as has happened b4 when this one has the potential to provide everything that is ever needed.

At this stage we OS 1.5 where those features from PA4x should have been included and probably even more things.

Come on Korg stump up, time for excuses is running out. If you want to charge for Uodates and they deliver all that I need, I’m happy to oblige. But I’m tired of the free uodates that never seem to arrive.

QUOTE:

2025.06.24
Pa5X OS v1.4 is coming!
Following our preview at NAMM earlier this year, we’re excited to confirm that the wait is almost over: Pa5X OS version 1.4 will be released very soon.

This is a major update, with OS1.4 including all the features previewed at NAMM, alongside additional enhancements inspired by feedback from Pa5X players across the globe.

We’ll announce the full details soon, but here are the highlights you can look forward to in OS v1.4:

● Recording Studio - a powerful new environment for backing-track creation (formerly Quick Record)
● Full Song Edit - deep MIDI song editing with hands-on control
● Style Creator Bot - convert MIDI files into brand-new Styles
● User resource sorting & icon selection - organise your setup your way
● Copy & swap Keyboard Sets - faster editing across Styles and SongBook entries
● De-Esser - new vocal tools in the microphone section

OS v1.4 is almost here, and we can’t wait to get it into your hands. We’ll be announcing the exact release date soon - stay tuned.

https://www.korg.com/us/news/2025/062402/