As quietly announced by Google, the original Chromecast is not supported anymore.
Users may notice a degradation in performance."
Essentially, they’re completely unsupported by Google as of the time of writing.
Jordan Gloor / How-To Geek
To be fair to Google, this rig enjoyed an exceptionally long lifespan.
The concept of the Chromecast changed over the years, eventually becoming what they are today.
But before this happened, they were pretty simple in nature.
Source:9to5Google
Via:The Verge