ChangeLog.md: bump revision to prepare for beta

diff --git a/ChangeLog.md b/ChangeLog.md
index 5e385bb55b770f19362bbe8319bf39edd1997798..650199f858dde1820d844e6369146bcc788c7096 100644 (file)
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,5 @@
-2.0 pre-beta
-============
+1.5.90 (2.0 beta1)
+==================
 
 ### Significant changes relative to 1.5.3: