diff --git a/ChangeLog.md b/ChangeLog.md
index 152c326..996ee30 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -34,6 +34,12 @@ Major release with full IGMPv3 (ASM) support and a new `mroutectl` tool.
 - Fixed libc portability issues, e.g. GNU:isms like `%m` etc.
 - Import OpenBSD fix to `daemon()` equivalent, use `/dev/null` for
   stdin, stdout and stderr
+- Use `clock_gettime()`, with monotonic clock, instead of the unsafe
+  `gethostbyname()`, for all non-date-printing code paths.  Only for
+  mrouted, other tools have not been changed
+- Fix lots of invalid format specifiers, found by Coverity Scan and
+  clang on FreeBSD
+- Fix detection of `netinet/igmp.h` on FreeBSD
 
 
 [v3.9.8][] - 2017-01-01
diff --git a/configure.ac b/configure.ac
index 581c55d..d8fa859 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_PREREQ(2.61)
-AC_INIT([mrouted], [4.0-dev], [https://github.com/troglobit/mrouted/issues],,
+AC_INIT([mrouted], [4.0-rc1], [https://github.com/troglobit/mrouted/issues],,
 		[https://troglobit.com/projects/mrouted/])
 AM_INIT_AUTOMAKE([1.11 foreign])
 AM_SILENT_RULES([yes])