Crystal Reports version compatibility, CR for VS

Hello,

My problem is following:

I have installed CR runtime version 13.0.5.891. My all apps are written for this version of runtime and I can't change it. This version of runtime is also installed on my clients PCs.

I want to install now CR for VS. I have VS2015, when I try to install CR for VS version 13.0.5.891 I can't open any report in VS nor add new reports. I have found that there is compatibility problem and this version of CR for VS is not supporting VS2015. If I install latest version of CR for VS I am getting errors in my apps and can't open any report.

I can't change any references to libraries in my projects unfortunately (library version 13.0.2000.0). Is there a solution which solves my problem ?

Best regards,

Tomek