diff --git a/Changes b/Changes
index 2f67819fc..72ad96864 100644
--- a/Changes
+++ b/Changes
@@ -3,7 +3,7 @@ Revision history for Verilator
 The contributors that suggested a given feature are shown in [].  [by ...]
 indicates the contributor was also the author of the fix; Thanks!
 
-* Verilator 3.879 devel
+* Verilator 3.880 2015-12-19
 
 ***   Support display %u, %v, %p, %z, bug989. [Johan Bjork]
 
diff --git a/configure.ac b/configure.ac
index 9bcfd4a51..908bce80a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -6,7 +6,7 @@
 
 #AC_INIT([Verilator],[#.### YYYY-MM-DD])
 #AC_INIT([Verilator],[#.### devel])
-AC_INIT([Verilator],[3.879 devel])
+AC_INIT([Verilator],[3.880 2015-12-19])
 # When releasing, also update header of Changes file
 
 AC_CONFIG_HEADER(src/config_build.h)