Version 1.2.9 of the OpenVPN Connect app for iOS is now officially out on the Apple app store. This version primarily takes care of preventing the MD5 warning pop-up from appearing on screen too often. Next to that we have updated the SSL library so that it can now properly parse private encrypted keys created with OpenSSL 1.1.
For a full list of fixes see the official release notes (change log) page below.

The following documents detail the changes made, and there's a frequently asked questions page that you may consult if you encounter any problems:

Official release notes (change log)
Frequently asked questions