[PATCH 3/7] openssl: inherit upstream-stable-release-point

[<daniel.turull@ericsson.com>]

From: Daniel Turull <daniel.turull@ericsson.com>

OpenSSL's release strategy states that patch releases contain only bug and
security fixes, with no new features and no API or ABI breaking changes.
It maintains several series at once: 3.0.21, 3.4.6, 3.5.7 and 3.6.3 were
all released on 2026-06-09, with 4.0.0 already out. So upgrades within a
major.minor are stable point upgrades per the OE-Core stable release
policy (ref-manual, "Stable Point Release Upgrades").

  https://docs.yoctoproject.org/dev/ref-manual/release-process.html#stable-point-release-upgrades
  https://openssl-library.org/policies/releasestrat/

Checked the last three point releases. Each is labelled "a security patch
release" in its own NEWS.md header, and every entry is a CVE fix, the item
count matching the unique CVE count exactly: 15 CVEs in 3.5.7 (Jun 09
2026), 7 in 3.5.6 (Apr 07 2026), 12 in 3.5.5 (Jan 27 2026).

When a series reaches EOL the regex must be moved to the next maintained
series by hand, as that is a feature-level change.

One limit is worth stating, from this recipe's own history: 3.2.4 -> 3.2.5
was refused on scarthgap in July 2025 for intermittent ptest failures in a
dependent recipe, bisected to an upstream commit and reported upstream,
and the branch went to 3.2.6 instead. A fixes-only release can still fail
to integrate, so proposing an upgrade is not the same as it passing.

Already tracked this way on the OE stable branches, counting only bumps
since each branch forked: kirkstone 3.0.2 -> 3.0.19 on the 3.0 LTS series;
scarthgap 3.2.1 -> 3.2.6 then, at EOL, 3.5.5 -> 3.5.7; wrynose picked up
3.5.7.

AI-Generated: Kiro with Claude Opus 5
Signed-off-by: Daniel Turull <daniel.turull@ericsson.com>
---
 meta/recipes-connectivity/openssl/openssl_3.5.7.bb | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/meta/recipes-connectivity/openssl/openssl_3.5.7.bb b/meta/recipes-connectivity/openssl/openssl_3.5.7.bb
index 212879dfa3..1f2754d5e0 100644
--- a/meta/recipes-connectivity/openssl/openssl_3.5.7.bb
+++ b/meta/recipes-connectivity/openssl/openssl_3.5.7.bb
@@ -24,6 +24,11 @@ SRC_URI[sha256sum] = "a8c0d28a529ca480f9f36cf5792e2cd21984552a3c8e4aa11a24aa31ae
 inherit lib_package multilib_header multilib_script ptest perlnative manpages
 MULTILIB_SCRIPTS = "${PN}-bin:${bindir}/c_rehash"
 
+# OpenSSL publishes bugfix/security-only releases on its per-minor branches.
+# When the tracked series reaches EOL, bump the regex manually to the next
+# maintained series.
+inherit upstream-stable-release-point
+
 PACKAGECONFIG ?= ""
 PACKAGECONFIG:class-native = ""
 PACKAGECONFIG:class-nativesdk = ""