It should, it's purely a JSON mod, which are very robust and don't break between versions. My Rock Blocks mod hasn't changed since I made it.

Can anyone confirm if this works using v.1.19pre?

You can press less. Press 5 at a time and you will get nice even returns.

The 9.89L error is caused by the press code rather than you. As others have said, making it so you can press less than 10L at a time is one possible solution.

Also, Expanded Foods also adds honey pressing, so if you have that, you don't need this mod.

IDK about the honey, but a workaround for fruit is to only press 16 at a time. You will press out exactly 5L of juice. Makes it more time consuming, but no loss of juice.

Thanks @Janub I did just that. The mod still has ample benefit (10/10 ratio) than doing it by hand. As I use honey for a LOT of recipes I wanted a real benefit to using the press. Read the description above for help on changing that ratio fairly simply for your game to whatever ratio you want.

I still haven't found a way to force the litres per item, the press always gives less than the total amount it should.

I really like the concept of this mod and might have an idea to solve both problems outlined in the description: Instead of returning wax directly from the press, you could instead output some sort of "pressed wax block" item, which can be crafted into some number of wax items. This way you can balance both wax and honey output to be more in line with the vanilla yield, and at the same time clear the attributes (I think). The only disadvantage would be the addition of a new item, which would also need new textures, but you might be able to reuse the model of the vanilla pressed mash item and just change the texture to something more wax-like.

Really love this mod, however as of 1.16.3 it doesn't seem to be working.

Pressed honey is a thing. Some beekeepers say it makes the honey even better and healthier than when centrifuged. Good QoL mod for those who like keeping a lot of bees

to press honey, this is something new 🤔