Add note to README.md

README.md

@@ -15,6 +15,15 @@ TemporalGPs.jl is registered, so simply type the following at the REPL:
 ```
 While you can install TemporalGPs without AbstractGPs and KernelFunctions, in practice the latter are needed for all common tasks in TemporalGPs.
 
+## Note !!!
+
+This package is currently not guaranteed to work with all current versions of dependencies. If something is not working on the current release of TemporalGPs,
+please try out v0.6.7, which pins some dependencies in order to circumvent some of the problems. You can do so by typing instead:
+```julia
+] add AbstractGPs KernelFunctions TemporalGPs@0.6.7
+```
+Please report an issue if this work-around fails.
+
 # Example Usage
 
 Most examples can be found in the [examples](https://github.com/JuliaGaussianProcesses/TemporalGPs.jl/tree/master/examples) directory. In particular see the associated [README](https://github.com/JuliaGaussianProcesses/TemporalGPs.jl/tree/master/examples/README.md).