This summary is not the rule. The rule text controls.
Here's a plain English summary:
The Oklahoma Bar Association puts out a publication called the Bar Journal. The Board of Governors, which oversees the bar association, decides how and when it gets published.
This journal is a way for the bar association to share information, and the leadership has control over its direction and schedule. There aren't specific details in this rule about how often it comes out or what it must contain. That's left up to the Board of Governors to decide as they see fit.