softlayer provider at hashicorp releases out of date

Or so it seems anyway. Is 0.0.1 the same as 1.5.0 when released here at GH? Any reason why SL isn't releasing through hashicorp?
```
Downloading modules...

Initializing the backend...

Initializing provider plugins...
- Checking for available provider plugins on https://releases.hashicorp.com...
- Downloading plugin for provider "softlayer" (0.0.1)...
```