Use development version.

echasnovski · echasnovski · commit db292d42768c · 2024-02-29T12:28:43.000+02:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,3 +1,5 @@
+# Version 0.12.0.9999
+
 # Version 0.12.0
 
 ## mini.basics
