# \[RELEASE\] ScyllaDB 5.1.13

**URL:** <https://forum.scylladb.com/t/release-scylladb-5-1-13/652>\
**Category:** Release Notes\
**Tags:** open-source, open-source-release, open-source-5-1\
**Created:** [June 27, 2023, 12:56pm UTC](https://forum.scylladb.com/t/release-scylladb-5-1-13/652 "2023-06-27T12:56:20Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![tzach](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.scylladb.com/tzach/32/172_2.png) [@tzach](https://forum.scylladb.com/u/tzach)\
**Post date:** [June 27, 2023, 12:56pm UTC](https://forum.scylladb.com/t/release-scylladb-5-1-13/652/1 "2023-06-27T12:56:20Z")

</div>

The ScyllaDB team announces ScyllaDB Open Source 5.1.13, a bugfix release of the ScyllaDB [5.1](https://forum.scylladb.com/t/release-scylla-5-1-0-part-1/126) stable branch. ScyllaDB Open Source 5.1.13, like all past and future 5.x.y releases are backward compatible and support [rolling upgrades](https://docs.scylladb.com/upgrade/upgrade-opensource/upgrade-guide-from-5.x.y-to-5.x.z/).

Note that the latest stable ScyllaDB Open Source release is [5.2](https://forum.scylladb.com/t/release-scylla-5-2-0-release-part-1/519), and you are encouraged to upgrade to it.

Related links:

- [ScyllaDB Open Source 5.1](https://forum.scylladb.com/t/release-scylla-5-1-0-part-1/126)
- [Get ScyllaDB Open Source](https://www.scylladb.com/download/open-source/) - AWS AMI, GCP Docker, binary packages and unified installer
- [ScyllaDB Web Installer for Linux](https://docs.scylladb.com/stable/getting-started/install-scylla/scylla-web-installer.html) (all releases)
- [Upgrade from ScyllaDB Open Source 5.x.y to Scylla Open Source 5.x.z](https://docs.scylladb.com/upgrade/upgrade-opensource/upgrade-guide-from-5.x.y-to-5.x.z/)
- [Upgrade from ScyllaDB Open Source 5.0.x to 5.1.y](https://docs.scylladb.com/upgrade/upgrade-opensource/upgrade-guide-from-5.0-to-5.1/)
- Please[let us know](https://github.com/scylladb/scylla/issues) if you encounter an issue.

Issue fixed in this release:

- Stability: a lot of lsa-timing log messages during node replace cause c-s stuck and aborted. The fix update the reactor shares for default IO class from 1 to 200 [#13753](https://github.com/scylladb/scylladb/issues/13753)

- Stability: ALTER KEYSPACE can break tables with UDT columns [#14139](https://github.com/scylladb/scylladb/issues/14139)

- Stability: All rpc::client objects have to be stopped before they are destroyed. Currently this is done in messaging\_service::shutdown(). The cql\_test\_env does not call shutdown() currently. This can lead to use-after-free, leading to sigsegv [#12244](https://github.com/scylladb/scylladb/issues/12244)

- Stability: Level compaction is not working in cleanup [#14035](https://github.com/scylladb/scylladb/issues/14035) (introduced in 5.1)

- Stability: Range-scans have a protection against using the wrong service-level to continue a suspended range-scan. This protection had a mistake, resulting in the node crashing when the protection mechanism was triggered. multishard\_mutation\_query: reader\_context::lookup\_readers() is not exception safe w.r.t. closing readers [#13784](https://github.com/scylladb/scylladb/issues/13784)

- Stability: Shutting down auth service may hang [#13545](https://github.com/scylladb/scylladb/issues/13545)