[xen staging] CHANGELOG.md: Start new "unstable" section

[patchbot@xxxxxxx]

commit 6c1c97e24f830a921a23e3b9694e20493c9986ee
Author:     Ian Jackson <iwj@xxxxxxxxxxxxxx>
AuthorDate: Wed Dec 1 18:07:40 2021 +0000
Commit:     Ian Jackson <iwj@xxxxxxxxxxxxxx>
CommitDate: Wed Dec 1 18:07:40 2021 +0000

    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@xxxxxxxxxxxxxx>
---
 CHANGELOG.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 731db3590e..6c0cd88cdf 100644
--- 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
--
generated by git-patchbot for /home/xen/git/xen.git#staging