X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=doc%2Fguides%2Frel_notes%2Frelease_20_02.rst;h=40ebbfac901e54872ba6dcce0ce444b151a08d56;hb=4407009c5d829e4407e278b9b23a95876b6e1c78;hp=870902f0b82f030b22a488c76357f10655df3d14;hpb=2e5e5d6ff869120e3af2cbdf76c257b79d25a64c;p=dpdk.git

diff --git a/doc/guides/rel_notes/release_20_02.rst b/doc/guides/rel_notes/release_20_02.rst
index 870902f0b8..40ebbfac90 100644
--- a/doc/guides/rel_notes/release_20_02.rst
+++ b/doc/guides/rel_notes/release_20_02.rst
@@ -298,6 +298,8 @@ API Changes
 * No change in this release.
 
 
+.. _20_02_abi_changes:
+
 ABI Changes
 -----------
 
@@ -315,6 +317,16 @@ ABI Changes
 
 * No change, kept ABI v20. DPDK 20.02 is compatible with DPDK 19.11.
 
+* The soname for each stable ABI version should be just the ABI version major
+  number without the minor number. Unfortunately both major and minor were used
+  in the v19.11 release, causing version v20.x releases to be incompatible with
+  ABI v20.0.
+
+  The `commit f26c2b39b271 <https://git.dpdk.org/dpdk/commit/?id=f26c2b39b271>`_
+  fixed the issue by switching from 2-part to 3-part ABI version numbers so that
+  we can keep v20.0 as soname and using the final digits to identify the DPDK
+  20.x releases which are ABI compatible.
+
 
 Tested Platforms
 ----------------