[PATCH v2] doc: announce new major ABI version

[Thomas Monjalon <thomas@monjalon.net>]

The next DPDK release 23.11 won't keep ABI compatibility.
Only the changes impacting the users should be announced in advance.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
---
v2: improve wording (thanks Bruce)
---
 doc/guides/rel_notes/deprecation.rst | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index 91ac8f0229..18281d7304 100644
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -4,9 +4,15 @@
 ABI and API Deprecation
 =======================
 
-See the guidelines document for details of the :doc:`ABI policy
-<../contributing/abi_policy>`. API and ABI deprecation notices are to be posted
-here.
+See the guidelines document for details
+of the :doc:`ABI policy <../contributing/abi_policy>`.
+
+With DPDK 23.11, there will be a new major ABI version: 24.
+This means that during the development of 23.11,
+new items may be added to structs or enums,
+even if those additions involve an ABI compatibility breakage.
+
+Other API and ABI deprecation notices are to be posted below.
 
 Deprecation Notices
 -------------------
-- 
2.41.0