Apple Remote app for Apple Watch, iOS now compatible with Apple TV tvOS 9.1
Tuesday's release of tvOS 9.1 added support for Apple's official Remote app both on iOS devices as well as the Apple Watch, offering alternative Apple TV input methods from the Siri Remote.

Upon updating a fourth-generation Apple TV to tVOS 9.1, users will be able to discover their set-top box via the Apple Remote app. Once connected, users can swipe on their iPhone or Apple Watch display to navigate the new Apple TV.
The tvOS 9.1 update also brings support for virtual keyboard input on an iPhone or iPad. This makes text entry when doing activities, like searching the App Store, much easier.
When a text field has been opened on the Apple TV, the Remote app on an iPhone will display an empty field and virtual keyboard for typing. The currently-open app is also named at the top of the screen.

Users can hide the virtual keyboard if they wish to navigate. If a keyboard entry option remains, a small keyboard icon will be displayed in the upper left corner of the app.
Users discovered the new Apple TV was incompatible with Apple's own Remote app for iOS and watchOS when the fourth-generation set-top box launched in late October. Previously, users could rely on the Remote app to control the second- and third-generation Apple TV.

Upon updating a fourth-generation Apple TV to tVOS 9.1, users will be able to discover their set-top box via the Apple Remote app. Once connected, users can swipe on their iPhone or Apple Watch display to navigate the new Apple TV.
The tvOS 9.1 update also brings support for virtual keyboard input on an iPhone or iPad. This makes text entry when doing activities, like searching the App Store, much easier.
When a text field has been opened on the Apple TV, the Remote app on an iPhone will display an empty field and virtual keyboard for typing. The currently-open app is also named at the top of the screen.

Users can hide the virtual keyboard if they wish to navigate. If a keyboard entry option remains, a small keyboard icon will be displayed in the upper left corner of the app.
Users discovered the new Apple TV was incompatible with Apple's own Remote app for iOS and watchOS when the fourth-generation set-top box launched in late October. Previously, users could rely on the Remote app to control the second- and third-generation Apple TV.
Comments
Almost all Apple tech isn't mainstream for 5 years.
Had Apple added 4K you'd be hollering "Apple always pushing technology forward!!!!!"
I really do not understand why this wasn't working at release,
what fact? whiners on tech blogs aren't most people. I assure you my parents have no idea what the remote app is. they use the metal remote.
Intel needs to step it up.
As for the new ApplyTV not supporting 4K, I don't think there's a single real 4K TV on the market, just this 3840x2160 nonsense. 4K projectors all cost eleventy billion dollars. The HDMI standard didn't even allow real 4K at any frame rate other than 24 per second until HDMI 2.0. That was announced on September 4, 2013. The first HDMI 2.0 sink chip didn't hit the market until nearly a year later, on August 7, 2014. The TV market is very small since their replacement lifetime is so long. I don't think anybody has a source chip that Apple could buy in a large enough quantity.