Trivial advice:
Mention your patch version in the title of the email.
See the last sentence of https://libvirt.org/submitting-patches.html

On Mon, Nov 9, 2020 at 3:35 PM jgao <jgao@redhat.com> wrote:
From: jgao <jgao@redhat.com>

Add news about apparmor about the improvements.

Signed-off-by: jgao <jgao@redhat.com>
For a single patch, add --- below signed-off-by and then mention the difference
from the previous patch version.
For a patch series, mention that changes in the cover letter.
See https://www.kernel.org/doc/html/latest/process/submitting-patches.html#the-canonical-patch-format
---
 NEWS.rst | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/NEWS.rst b/NEWS.rst
index 905deba5a8..30a4f1065a 100644
--- a/NEWS.rst
+++ b/NEWS.rst
@@ -224,6 +224,11 @@ v6.7.0 (2020-09-01)
     forbidden and no size auto-alignment will be made. Instead, libvirt will
     suggest an aligned round up size for the user.

+  * apparmor: Several improvements
+
+   Add support for virtiofs filesystem, allowing qemu load old shared objects after
+   upgrades.
+
 * **Bug fixes**

   * virdevmapper: Deal with kernels without DM support
--
2.21.3



--
Reviewed-by: Han Han <hhan@redhat.com>