# Ion-dev 1.0.304

**URL:** <https://forum.datomic.com/t/ion-dev-1-0-304/2063>\
**Category:** Announcements\
**Created:** [April 4, 2022, 2:21pm UTC](https://forum.datomic.com/t/ion-dev-1-0-304/2063 "2022-04-04T14:21:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![jaret](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.datomic.com/jaret/32/45_2.png) [@jaret](https://forum.datomic.com/u/jaret)\
**Post date:** [April 4, 2022, 2:21pm UTC](https://forum.datomic.com/t/ion-dev-1-0-304/2063/1 "2022-04-04T14:21:00Z")

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This message covers changes in this release. For more details, see [Datomic Cloud Releases | Datomic](https://docs.datomic.com/cloud/releases.html)

## 2022/04/1 1.0.304 ion-dev

- Resolved [an issue](https://clojure.org/news/2022/04/01/deref#_from_the_core) where a user may encounter the error:

```auto
"WARNING: abs already refers to: #'clojure.core/abs in namespace: cognitect.s3-libs.file, being replaced by: #'cognitect.s3-libs.file/abs"

```