List of Pokémon forms by release date/2020

By the start of 2020, the number of released forms was:

January
Shiny Spinda pattern 7 was released.

Shiny (1) =

January
Shiny Wurmple was released on Hatchathon 2020. Evolution of shiny Wurmple are only available after the event ended.

Shiny (1) =

January
Shiny Heatran was released as a 5-tier Raid Boss.

Shiny (1) =

January
Several Unova-region Pokémon were released along with Trade Evolution.

Regular (35) =

January
Shiny Wurmple family became obtainable after Hatchathon 2020.

Shiny (4) =

January
Shiny Piplup became available on the 25th Community Day.

Shiny (3) =

January
Darumaka and Standard Mode Darmanitan were released on Lunar New Year 2020.

Regular (2) =

January
Scraggy was released along with GO Battle League.

Regular (2) =

February
Woobat was released as a Research Breakthrough reward.

Regular (2) =

February
Minccino was released on the Limited Research day.

Regular (2) =

Shiny (2) =

February
Tornadus was released as a 5-tier Raid Boss.

Regular (1) =

February
Shiny Riolu and Hippopotas were released on Sinnoh Celebration.

Shiny (4) =

February
Audino, Alomomola and shiny Chansey family were released on Valentine's Day 2020.

Regular (2) =

Shiny (3) =

February
Shiny Lickitung was released on Lickitung Raid Day.

Shiny (2) =

February
Shiny Rhyhorn was released on the 26th Community Day.

Shiny (3) =

March
Thundurus will be released in Raids.

Regular (1) =

Before May
Rufflet will be released before the Safari Zone Philadelphia.

Regular (2) =

May
Shiny Voltorb will be released on the Safari Zone Philadelphia.

Shiny (2) =