CHANGELOG.md: Start new "unstable" section

I have just forward-ported the CHANGELOG.md updates from the
stable-4.16 branch.  But we need a new section for work in this
release cycle.

Signed-off-by: Ian Jackson <iwj@xenproject.org>

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 731db3590eb1b18189cbbd0625302627b8bd4bf3..6c0cd88cdf441c4248301158b5605ba6b16ce258 100644 (file)
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@ Notable changes to Xen will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 
+## [unstable UNRELEASED](https://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=staging) - TBD
+
 ## [4.16.0](https://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=staging) - 2021-12-02
 
 ### Removed