word_fcuk: I am currently trying to mod my Slay the Spire version using the basemod from Steam. It is giving me the following warnings:

This mod explicitly supports StS 12-22-2020.
You are running StS 12-13-2020.
You may encounter problems running it.

When trying to run the mods, my launch fails:

java.lang.NullPointerException
at javassist.util.proxy.SecurityActions.setAccessible(SecurityActions.java:103)
at javassist.util.proxy.DefineClassHelper.toClass3(DefineClassHelper.java:151)
at javassist.util.proxy.DefineClassHelper.toClass2(DefineClassHelper.java:134)
at javassist.util.proxy.DefineClassHelper.toClass(DefineClassHelper.java:95)
at javassist.ClassPool.toClass(ClassPool.java:1143)
at javassist.CtClass.toClass(CtClass.java:1316)
at com.evacipated.cardcrawl.modthespire.Patcher.compilePatches(Patcher.java:351)
at com.evacipated.cardcrawl.modthespire.Loader.runMods(Loader.java:400)
at com.evacipated.cardcrawl.modthespire.ui.ModSelectWindow.lambda$null$1(ModSelectWindow.java:273)
at java.base/java.lang.Thread.run(Thread.java:829)

Why is my Slay the Spire Version not up to date? Are we getting this still? Or is this a me being a noob issue?