Add changeset

Author: braxtonhall

.changeset/empty-poets-collect.md

@@ -0,0 +1,19 @@
+---
+'neverthrow': major
+---
+
+Allow orElse method to change ok types.
+This makes the orElse types match the implementation.
+
+This is a breaking change for the orElse type argument list,
+as the ok type must now be provided before the err type.
+
+```diff
+- result.orElse<ErrType>(foo)
++ result.orElse<OkType, ErrType>(foo)
+```
+
+This only applies if type arguments were
+explicitly provided at an orElse callsite.
+If the type arguments were inferred,
+no updates are needed during the upgrade.