This summary is not the rule. The rule text controls.
When you file an appeal in a criminal case, any physical evidence or documents used at trial (called exhibits) need to be handled a certain way. These exhibits don't automatically go to the appeals court with the rest of the case file. Instead, they get deposited following the process laid out in Rule 81.16, which is a separate rule that spells out exactly how and where exhibits should be stored during the appeal.
This matters because appeals courts mainly review written records like transcripts and legal documents. Physical evidence, photos, or other exhibits from the trial are treated differently and follow their own filing process. If you're involved in an appeal and need an exhibit to be part of the record the appeals court reviews, you'll need to follow the steps in Rule 81.16 to make that happen.
The note at the bottom just explains that this rule was created in 1980 and matches similar language already found in Rule 81.15, which covers related ground for civil cases.