We have been supporting the RSK testnet (previously known as RootStock) in Jaxx for a while now. With the Jaxx Wallet update version 1.3.14 we are now proud to release the RSK mainnet:
To get access to the RSK wallet be sure to have your Jaxx updated to the latest version of the app and configuration (Check Menu > About):
If your About section looks like the above or the numbers are higher, head on to the MENU>Wallets tab to activate the RSK wallet:
How to Get RSK
Currently you will need to follow this guide: https://github.com/rsksmart/rskj/wiki/Convert-your-Testnet-Bitcoins-to-Bamboo-Smart-Bitcoins-and-viceversa to convert your BTC to SBTC but instead of sending testnet BTC you will be sending real BTC to the foundation address (reach out to the foundation to get the address, don't use the one in that guide).
You can also chat with the RSK teams via: https://gitter.im/rsksmart/rskj
We are working together with the RSK team to update this section as soon as other ways to get SBTC are created.