Add empty migration guide for 3.1

Fixes #19953

CLA: trivial

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20008)

diff --git a/doc/man7/migration_guide.pod b/doc/man7/migration_guide.pod
index 75c8ed700c898cd0222b8500f13993455a40d790..8bd44a6ce74ac819b2f3c76dbc6dc101a86fc340 100644 (file)
--- a/doc/man7/migration_guide.pod
+++ b/doc/man7/migration_guide.pod
@@ -11,11 +11,17 @@ See the individual manual pages for details.
 =head1 DESCRIPTION
 
 This guide details the changes required to migrate to new versions of OpenSSL.
-Currently this covers OpenSSL 3.0. For earlier versions refer to
+Currently this covers OpenSSL 3.0 & 3.1. For earlier versions refer to
 L<https://github.com/openssl/openssl/blob/master/CHANGES.md>.
 For an overview of some of the key concepts introduced in OpenSSL 3.0 see
 L<crypto(7)>.
 
+=head1 OPENSSL 3.1
+
+=head2 Main Changes from OpenSSL 3.0
+
+There are no changes requiring additional migration measures since OpenSSL 3.0.
+
 =head1 OPENSSL 3.0
 
 =head2 Main Changes from OpenSSL 1.1.1