diff --git a/CHANGELOG b/CHANGELOG
index ec84318aa..d1c1f560a 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,9 @@
 List of major changes and improvements between releases
 =======================================================
 
+Yosys 0.49 .. Yosys 0.50-dev
+--------------------------
+
 Yosys 0.48 .. Yosys 0.49
 --------------------------
  * Various
diff --git a/Makefile b/Makefile
index a6b742526..6c63f22cc 100644
--- a/Makefile
+++ b/Makefile
@@ -153,7 +153,7 @@ ifeq ($(OS), Haiku)
 CXXFLAGS += -D_DEFAULT_SOURCE
 endif
 
-YOSYS_VER := 0.49
+YOSYS_VER := 0.49+0
 
 # Note: We arrange for .gitcommit to contain the (short) commit hash in
 # tarballs generated with git-archive(1) using .gitattributes. The git repo
@@ -169,7 +169,7 @@ endif
 OBJS = kernel/version_$(GIT_REV).o
 
 bumpversion:
-#	sed -i "/^YOSYS_VER := / s/+[0-9][0-9]*$$/+`git log --oneline aaa5347.. | wc -l`/;" Makefile
+	sed -i "/^YOSYS_VER := / s/+[0-9][0-9]*$$/+`git log --oneline 427b5a2.. | wc -l`/;" Makefile
 
 ABCMKARGS = CC="$(CXX)" CXX="$(CXX)" ABC_USE_LIBSTDCXX=1 ABC_USE_NAMESPACE=abc VERBOSE=$(Q)