Hello fellow Chromecast users,
I just had an enlightening conversation with a useful member of the Google customer service staff. I was troubleshooting an issue with the MLB app, as about two weeks ago it stopped showing the casting icon to enable casting to my 2nd generation device. I was told that Disney+ and the official MLB app had removed their support of casting to our devices. This is being done "quietly" and I can confirm that since I looked all over for this specific in formation on the MLB website to no avail.
The customer service agent told me that my first and second generation devices have reached their functional limits. She couldn't tell me if other services were going to start falling away (like Netflix several months back) and intimated that Youtube would soon follow suit.
I own 3 Chromecasts and have one in every TV in my home. Looks like that will have to change now. She recommended I purchase an onn 4K streaming device, made by Walmart but supported by Google.
I've had these things for 10+ years.