diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# 12/16/2019 PLASMA 2.0 Developer Preview 1 E+C Available!
+# 12/17/2019 PLASMA 2.0 Developer Preview 1z Available!
 [Download and read the Release Notes](https://github.com/dschmenk/PLASMA/blob/master/doc/Version%202.0.md)
 
 # 4/29/2018 PLASMA 1.2 Available!
diff --git a/doc/Version 2.0.md b/doc/Version 2.0.md
index 2fd0945..a183038 100644
--- a/doc/Version 2.0.md	
+++ b/doc/Version 2.0.md	
@@ -1,4 +1,4 @@
-# PLASMA Version 2.0 Developer Preview 1 E+C
+# PLASMA Version 2.0 Developer Preview 1z
 
 Welcome to PLASMA: the Grand Unifying Platform for the Apple 1, ][, and ///.
 
@@ -102,6 +102,10 @@ There is a [YouTube playlist](https://www.youtube.com/playlist?list=PLlPKgUMQbJ7
 
 - The documentation is sparse and incomplete. Yep, could use your help...
 
+# Changed in PLASMA for 2.0 DP 1z
+
+1. Many fixes for the value zero - especially in 65802/65816 divide routine
+
 # Changed in PLASMA for 2.0 DP 1 E+C
 
 1. Greatly improved code editor and additional compiler stats
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