If your version of Photoshop does not support ACR 9.12.1, you must use the free Adobe DNG Converter to transform your RAW files into a format your older software can recognize. How to Download and Install
Adobe maintains a "Product Availability" archive for enterprise customers. Here is the safe route: camera raw 9.12.1 download
With the introduction of Creative Cloud, Adobe changed the file versioning system. The download file is technically named , but once installed, the internal version number displayed in Photoshop is 9.12.1 . This is the correct and final update for the version 9.x architecture. If your version of Photoshop does not support ACR 9