Add upgrading docs for changes to send-verify-email API

Closes keycloak#26146.

Signed-off-by: Lex Cao <[email protected]>

docs/documentation/upgrading/topics/keycloak/changes-24_0_0.adoc

@@ -190,3 +190,33 @@ To revert the change for an installation, use a custom Infinispan XML configurat
 ----
 <metrics names-as-tags="false" />
 ----
+
+= The Admin send-verify-email API now uses the same email verification template
+
+----
+PUT /admin/realms/{realm}/users/{id}/send-verify-email
+----
+
+In this release, the API will use the `email-verification.ftl` template instead of `executeActions.ftl`.
+
+.Before upgrading
+----
+Perform the following action(s): Verify Email
+----
+
+.After upgrading
+----
+Confirm validity of e-mail address [email protected].
+----
+
+If you have customized the `executeActions.ftl` template to modify how users verify their email using this API, ensure that you transfer your modifications to the new template.
+
+A new parameter called `lifespan` will be introduced to allow overriding of the default lifespan value (12 hours).
+
+If you prefer the previous behavior, use the `execute-actions-email` API as follows.
+
+----
+PUT /admin/realms/{realm}/users/{id}/execute-actions-email
+
+["VERIFY_EMAIL"]
+----