Hi Patrick,

About the older js clients, we've provided the appropriate download link through support@lightstreamer.com.

The TypeScript modules matter is a little more complex.
At the moment we are not aware of a TypesSript module implementation that wraps our JavaScript library.

I am not sure if this could help, but you can take a look to our Angular2 demo, Lightstreamer - Basic Stock-List Demo - HTML (Angular2) Client, for an example of using the JavaScript Web Client API for Lightstreamer in TypeScript code.

Regards,
Giuseppe