Signed-off-by: Jingjing Wu <jingjing.wu at intel.com>
---
 doc/guides/rel_notes/deprecation.rst | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/doc/guides/rel_notes/deprecation.rst 
b/doc/guides/rel_notes/deprecation.rst
index 549ecb9..1a4614d 100644
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -32,3 +32,7 @@ Deprecation Notices
   and table action handlers will be updated:
   the pipeline parameter will be added, the packets mask parameter will be
   either removed (for input port action handler) or made input-only.
+
+* ABI changes are planned for struct rte_eth_fdir_flow in order to support
+  extend flow director's input set. The release 2.2 does not contain these ABI
+  changes, but release 2.3 will, and no backwards compatibility is planned.
-- 
2.4.0

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