Windows Insider app has seen an update and comes without a changleog. While tips confirm that it has killed the hack being used to install Windows 10 for Phones preview on unsupported devices, according to Gabe Aul from Microsoft it brings “certification pining” to the app.
@kbcao17 We added support for certificate pinning in the app.
— Gabriel Aul (@GabeAul) February 20, 2015
The only difference I can notice on my Lumia 730 is that on launching the updated app and tapping on “get preview builds”, my device is not being offered enrollment options of “Insider Slow” or Insider Fast and just says “no build available”.