Template contribution creation on older civi versions
Just flagging that on Civi 5.70 upon saving / updating the recur it generates the template contribution civicrm_contribution
successfully. On 5.65.1 it did not. Not expecting it to work on older versions but FYI...
The updating of the subscription worked on Stripe side though the change was within the same product e.g.
CiviCRM every 1 month(s) USD30.90 was the existing product and then it added, $11 to it which could be confusing.
(Note I reverted the update subscription in this test)