Stranger Things 4 premieres Tuesday in the wake of the shooting at Robb Elementary School in Uvalde, Texas.
21 people, including 19 children and two teachers, were killed in this attack.
The United States will be in front of an audience when the show premieres on Friday.
Will air before the recap of last season, which will be available in full in the United States. "Stranger Things 4" will auto-play at the beginning of Episode 1 for US viewers.
In addition, Netflix has updated the launch details to include the note,
The show's rating recommendation now includes "Warning: Contains graphic violence involving children" and "Disturbing Scenes".
Netflix officially released Volume 1 last Friday, eight minutes before the start of Season 4 of "Stranger Things."
The early picture shows the bodies of several children covered in blood, indicating a massacre.
Despite the fact that this was already known prior to the Uvalde school shooting, Netflix decided to include a warning notice in the first episode.
Due to the devastation and graphic nature of the scene, it was time to coincide with the disaster for the first time.
Netflix's decision comes ahead of the release of Stranger Things 4, and is the first Hollywood move since filming this week at Rob Elementary.
Others include Lifetime pushing McKenna Grace's "The Bad Seed Returns" for release.
The second season of "Stranger Things 4," which includes episodes 8 and 9, will premiere on July 1.