diff --git a/ChangeLog b/ChangeLog
index 3185ae6..322b18d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -214,3 +214,5 @@ Include escaped percent sign in output (#70). Thanks to Max Leonhardt.
 (Version 2.8.10) -- December, 2023
 
 Fixes to man page. Thanks to kberry and Hilmar Preusse.
+
+(Version 2.8.11) -- UNRELEASED
diff --git a/Makefile b/Makefile
index 22d3b19..29f6c2c 100644
--- a/Makefile
+++ b/Makefile
@@ -105,7 +105,7 @@ SRC	= detex.l
 #
 D_OBJ	= detex.o
 
-VERSION = 2.8.10
+VERSION = 2.8.11-SNAPSHOT
 
 all:	${PROGS}
 
diff --git a/README b/README
index 2fefafa..04ec7fa 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-OpenDetex - Version 2.8.10
+OpenDetex - Version 2.8.11 UNRELEASED
 
 OpenDetex is a program to remove TeX constructs from a text file.  It recognizes
 the \input command.