Md9600-csv-2571v5--v26.45.bin __exclusive__ -

This file, MD9600-CSV(2571V5)-V26.45.bin , is the essential "donor" firmware required to install the

Versioning: The version number "v26.45" suggests a level of maturity and stability. Typically, versioning indicates incremental updates that might include bug fixes (often in the lower version number) and more significant updates or new features (in the higher version number). md9600-csv-2571v5--v26.45.bin

This specific file, md9600-csv-2571v5--v26.45.bin , is a firmware update for the TYT MD-9600 This file, MD9600-CSV(2571V5)-V26

It was an odd requirement. She wasn't even using an MD9600 mobile radio. But the developers had explained it long ago—this specific file contained the "codec," the proprietary digital voice translator. Because of legal licensing, the open-source community couldn't include it. You had to "donate" it from an official TYT update. She wasn't even using an MD9600 mobile radio

Compatibility: Interestingly, this same file is used as the donor for multiple radios, including the MD-9600, MD-UV380/390, and Retevis RT-3S.  3. Performance Review (Official vs. OpenGD77) 

Handheld: TYT MD-UV380/390, Retevis RT-3S, and Baofeng DM-1701. Installation Highlights

6. Could “csv-2571v5” Be a Channel List or Codeplug?

Another possibility: some radios separate firmware (.bin) from configuration (.csv or .rdt). The user might have concatenated a codeplug filename with a firmware name.
For example: