Update VERSION.md

Author: pjfanning

release-notes/VERSION.md

@@ -1,3 +1,9 @@
+# Version: 2.20.0-rc1
+
+This patch release tracks Jackson 2.20. The 2.20 series has full support for
+Scala 2.11, 2.12, 2.13 and 3.3+. Java 8 is the minimum supported Java version.
+There are no new fixes in this release.
+
 # Version: 2.19.2
 
 There are no new fixes in this release; it serves to track the 2.19.2 release