bindgroup-labels-mandatory.md

---

title: "`BindGroupLayout` labels are no longer optional"
pull_requests: [21573]

---

In previous versions of Bevy, the label of a BindGroupLayout was optional. This practically only applies when implementing AsBindGroup manually without the AsBindGroup derive.

If you were previously omitting the label implementation from a impl AsBindGroup, you now must implement it:

fn label() -> &'static str {
    "my label"
}