Changes:

• Updated Mattermost to latest upstream - 5.23.0.
• Explcitly disable TLS<1.2 (i.e. SSLv3, TLSv1, TLSv1.1). (v15.x TurnKey releases supported TLS 1.2, but could fallback as low as TLSv1).
• Update SSL/TLS cyphers to provide "Intermediate" browser/client support (suitable for "General-purpose servers with a variety of clients, recommended for almost all systems"). As provided by Mozilla via https://ssl-config.mozilla.org/.
• Note: Please refer to turnkey-core's changelog for changes common to all appliances. Here we only describe changes specific to this appliance.

Links

• Release meta-files (signature, manifest)