info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/product/ux/technical-writing/#assignments
| `state` | string | no | 'Return `opened`, `upcoming`, `current (previously started)`, `closed`, or `all` iterations. Filtering by `started` state is deprecated starting with 14.1, please use `current` instead.' |
| `updated_before` | datetime | no | Return only iterations updated before the given datetime. Expected in ISO 8601 format (`2019-03-15T08:00:00Z`). [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/378662) in GitLab 15.10. |
| `updated_after` | datetime | no | Return only iterations updated after the given datetime. Expected in ISO 8601 format (`2019-03-15T08:00:00Z`). [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/378662) in GitLab 15.10. |