NEWS;

--- a/NEWS	Tue Apr 07 21:52:03 2020 +0200
+++ b/NEWS	Tue Apr 07 22:13:22 2020 +0200
@@ -12,6 +12,9 @@
 * The command-line tool "isabelle console" now supports interrupts
 properly (on Linux and macOS).
 
+* The Isabelle/Scala "Progress" interface has changed slightly and
+"No_Progress" discontinued. INCOMPATIBILITY, use "new Progress" instead.
+
 
 
 New in Isabelle2020 (April 2020)