change_detection_refactors.md

---

title: "Tick-related refactors"
pull_requests: [21562, 21613]

---

TickCells is now ComponentTickCells.

ComponentSparseSet::get_with_ticks now returns Option<(Ptr, ComponentTickCells)> instead of Option<(Ptr, TickCells, MaybeLocation)>.

The following types have been moved from the component module to the change_detection module:

• Tick

• ComponentTicks

• ComponentTickCells

• CheckChangeTicks