Problem/Motivation
The version key is present in the acquia_connector.info.yml file. See below for the current version of the yml file:
name: Acquia connector
type: module
description: 'Allows Drupal to securely communicate with the Acquia Subscription, and checks for updates to Acquia Drupal.'
package: Acquia
core: 8.x
configure: acquia_connector.settings
version: VERSION
The problem is the version: VERSION line. It is making the module appear as unsupported on /admin/reports/updates. Example:

This applies to both 8.x-1.0 and 8.x-1.1
Proposed resolution
Remove this line so that the version set won't be the current version of Drupal core being used. That will make the module status page display the correct version of the module installed. Example:

Comments
Comment #2
mirie commentedComment #3
stanislav mixnovich commentedComment #4
mirie commentedAdded patch that removes this line.
Comment #5
stanislav mixnovich commentedComment #7
stanislav mixnovich commentedCommitted http://cgit.drupalcode.org/acquia_connector/commit/?id=7782b66