The past few days I did tons of bugfixing, code digestion, and eyeballing everything to make sure it is ready for this week's first Beta Pre-Release. I've finished writing the scripting system (not the API). The system itself is very robust and allows for some fast iterations for modding. What this means is that it allows users to really crank out code quickly and test it as soon as they save the file.
Here is an example of the system in action:

If I purposefully mess up the code, the character with that script will freeze up in place and a message box will appear with the error in question. When I fix the code, the character resumes the logic. This way you can see which characters are affected and instantly perform fixes on them.
I also added some sounds to let the user know when the game refreshes a file and when an error occurs. I also started to add hints to the Create Menu:

Also, you can now specify the height in cm of your custom character.

When you save this setting, the character will spawn with the appropriate height. This way you can make sure they are as tall as they have to be. Example:

I'm getting ready to release these first iteration mod tools. I am aiming for this Friday.
If you are not a modder, don't worry. I will still make new behaviors (after I finish porting the v0.8 behaviors). But I want to allow people to make their own behaviors because it speeds up development and also allows for some wild creativity. I am still porting over the headpat and handhold behaviors into this new codebase. I expect to have it finished next week.
As I roll out the old behaviors into this new version, I will update the mod tools and have more frequent Beta pre-releases. There is plenty for me to do including a website with documentation on the incoming C# API. I also want to bring back the onsen that I built. This will be rolled out in gen 2 of the mod tools when I add support for custom props and maps.
I will be conducting a short survey to get a sense of how many people who follow this game do any sort of modding, coding, or related.
Stay tuned!