What is the significance of the ‘[R-]’ notation after MPEP 212 [Reserved]?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-09 10 Rules 5 Related FAQs This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice. The ‘[R-]’ notation after ‘MPEP 212 [Reserved]’ typically indicates that this section has been revised. However, in this case, since the section is reserved and empty, the ‘[R-]’ may be a placeholder for future revision dates. When a substantive revision occurs, a date is usually added after the ‘R’, such as ‘[R-10.2019]’ to indicate an October 2019 revision. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Patents as Literature of the Art MPEP 2123 Patents as Literature of the Art MPEP 2123 Reference May Suggest Nonpreferred Embodiments MPEP 2123 Permitted Reference Discloses Both With and Without Optional Component MPEP 2123 Prior Art Can Anticipate Even If It Teaches Away MPEP 2123 Disclosure Is Required Regardless of Optimality MPEP 2123 Rejection Over Prior Art’s Broad Disclosure Instead of Preferred Embodiments MPEP 2123 Disclosed Examples Do Not Teach Away From Broader Disclosure MPEP 2123 Inferior Composition Not Patentable MPEP 2123 Inferior Alternative Does Not Teach Away MPEP 2123 Other Related FAQs 5 FAQs Collapse Is there any content in MPEP 212? What does &#8216;[Reserved]&#8217; mean in MPEP 212? Should patent attorneys or examiners be concerned about &#8216;[Reserved]&#8217; sections like MPEP 212? What does it mean when an MPEP section is marked as [Reserved]? How often are &#8216;[Reserved]&#8217; sections in the MPEP filled with content?