Elk has released version 1.2.56 firmware for the M1xrftw wireless adapter that you can get from their download page but for some reason there are no release notes there.
Here is a link to the release notes that I found by searching:
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CB4QFjAAahUKEwim19SHmLXHAhUDOj4KHYPWCdE&url=http%3A%2F%2Fwww.elkproducts.com%2FLiteratureRetrieve.aspx%3FID%3D132728&ei=_XvUVebkL4P0-AGDraeIDQ&usg=AFQjCNEFFVHWsap4XODSqF__kvPRE3-8rw&sig2=FSUrEuXi1JUTubYgSCJDlA&bvm=bv.99804247,d.cWw&cad=rja
Mike.
Here is a link to the release notes that I found by searching:
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CB4QFjAAahUKEwim19SHmLXHAhUDOj4KHYPWCdE&url=http%3A%2F%2Fwww.elkproducts.com%2FLiteratureRetrieve.aspx%3FID%3D132728&ei=_XvUVebkL4P0-AGDraeIDQ&usg=AFQjCNEFFVHWsap4XODSqF__kvPRE3-8rw&sig2=FSUrEuXi1JUTubYgSCJDlA&bvm=bv.99804247,d.cWw&cad=rja
Mike.
