The Spine 4.3 beta has begun!
Yes, we try very hard so that beta project files can be opened by later versions. In over a decade we've never failed at that, though it's technically possible. 
Oh wow the sliders will be insanely useful. I have been wanting to be able to export 'layered' animations to video for a long time now and this essentially enables that. I also see that you already had the "graphically showing clamp limits" solution too! Gonna have to jump back into spine and try figure out sliders.
In 4.3.30-beta we've added PSDs to the Images node. This lets you easily recreate your PNGs and attachments from one or more PSDs. It's a better workflow that using the Import PSD dialog, since it remembers each PSD and the settings per PSD file.
4.3 should now be feature complete! That means we'll focus on bugs, stability, and the runtimes until it's ready to be released as non-beta.
Thanks to everyone who is testing the beta and reporting any issues you encounter!
Sliders are a really cool feature!
But this might be my greed,
It would be nice if we could mix several sliders properly.
Currently, the idea is that only left and right rotations can be used, and it seems difficult to express the up and down rotations together.
@wane1954 Sliders set a pose, overwriting (or blending with using mix) the previous pose value, the same as applying an animation does. If you want to combine multiple sliders that key the same values, check Additive.
Please note that the recommendation to avoid deform keys still applies. In rare cases they are needed but most of the time it is better to use bone weights to manipulate a mesh. You can still key the bones in a slider animation.
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Nate
hey there , quick question
We're currently thinking of porting from unity 2022, to latest 6
Would you recomend 4.3 beta or 4.2? Asking since 4.2 has version range as Unity 2017.1-6000.0
and we're looking at latest stable so 6000.1.5f1 for now , wondering if the range would also include anything in the 6000 range unoficially or is 6000.0 a hard stop? Or if we use the LTS if the 4.2 is safe
@lucky I don't recommend using spine-unity 4.3-beta yet, as porting is not done yet. You might want to wait a bit until it is completed at least, or continue using 4.2.
While the spine-unity 4.2 runtime is guaranteed to be compatible with Unity 6000.0, if we find any issues on 6000.1 we will very likely back-port any bugfixes to 4.2 as well, especially until 4.3 is still in beta. If you encounter any issues on 6000.1, please do not hesitate to let us know.
Hello, thank you for updating the tool interestingly!
By the way, is it decided when is the official release date for version 4.3?
Or is there a major feature that will be added?
We don't plan to add more features to 4.3. We're focused on runtimes, then testing, then we can release as non-beta. I can't say when that will be done, but it shouldn't be too long!