A New Shiny
That is one nice looking Gible! ✨ https://t.co/9EmKlEfPo9
— Pokémon GO (@PokemonGoApp) December 17, 2019
UPDATE: The official Pokémon GO Twitter account has acknowledged the existence of Shiny Gible. While this doesn't mean it was intentional, it likely means that it will be sticking around.
Shiny Gible 😱 pic.twitter.com/9mHAhuzhcK
— 🔅Oz R🔅 (@OzRlate1) December 17, 2019
On December 16th, trainers on Reddit and Twitter reported that they had encountered Shiny Gible. If this shiny release is intentional, there's a chance this reduces the odds of Gible getting a Community Day. If this is accidental, then Gible will be one of the rarest shinies out there, at least for now.