docs: Clarify that security policy covers last 3 versions (cherry-pick …

…#14786) (#14793)

* docs: Clarify that security policy covers last 3 versions (#14786)

* docs: Clarify that security policy covers last 3 versions

Signed-off-by: Kostis Kapelonis <kostis@codefresh.io>

* Update SECURITY.md

Signed-off-by: Michael Crenshaw <350466+crenshaw-dev@users.noreply.github.com>

---------

Signed-off-by: Kostis Kapelonis <kostis@codefresh.io>
Signed-off-by: Michael Crenshaw <350466+crenshaw-dev@users.noreply.github.com>
Co-authored-by: Michael Crenshaw <350466+crenshaw-dev@users.noreply.github.com>

* docs: Clarify that security policy covers last 3 versions (#14786)

* docs: Clarify that security policy covers last 3 versions

Signed-off-by: Kostis Kapelonis <kostis@codefresh.io>

* Update SECURITY.md

Signed-off-by: Michael Crenshaw <350466+crenshaw-dev@users.noreply.github.com>

---------

Signed-off-by: Kostis Kapelonis <kostis@codefresh.io>
Signed-off-by: Michael Crenshaw <350466+crenshaw-dev@users.noreply.github.com>
Co-authored-by: Michael Crenshaw <350466+crenshaw-dev@users.noreply.github.com>

---------

Signed-off-by: Kostis Kapelonis <kostis@codefresh.io>
Signed-off-by: Michael Crenshaw <350466+crenshaw-dev@users.noreply.github.com>
Co-authored-by: Kostis (Codefresh) <39800303+kostis-codefresh@users.noreply.github.com>
Co-authored-by: Michael Crenshaw <350466+crenshaw-dev@users.noreply.github.com>

SECURITY.md

@@ -35,9 +35,7 @@ impact on Argo CD before opening an issue at least roughly.
 
 ## Supported Versions
 
-We currently support the most recent release (`N`, e.g. `1.8`) and the release
-previous to the most recent one (`N-1`, e.g. `1.7`). With the release of
-`N+1`, `N-1` drops out of support and `N` becomes `N-1`.
+We currently support the last 3 minor versions of Argo CD with security and bug fixes.
 
 We regularly perform patch releases (e.g. `1.8.5` and `1.7.12`) for the
 supported versions, which will contain fixes for security vulnerabilities and