# \[RELEASE\] ScyllaDB 5.2.1

**URL:** https://forum.scylladb.com/t/release-scylladb-5-2-1/552
**Category:** Release Notes
**Tags:** open-source, open-source-release, open-source-5-2
**Created:** [May 16, 2023, 2:22pm UTC](https://forum.scylladb.com/t/release-scylladb-5-2-1/552 "2023-05-16T14:22:58Z")
**Posts on this page:** 1
**Page:** 1

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### 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: [May 16, 2023, 2:22pm UTC](https://forum.scylladb.com/t/release-scylladb-5-2-1/552/1 "2023-05-16T14:22:58Z")

</div>

The ScyllaDB team announces ScyllaDB Open Source 5.2.1, a bugfix release of the ScyllaDB [5.2](https://forum.scylladb.com/t/release-scylla-5-2-0-release-part-1/519) stable branch. ScyllaDB Open Source 5.2.1, like all past and future 5.x.y releases, is backward compatible and supports [rolling upgrades](https://docs.scylladb.com/upgrade/upgrade-opensource/upgrade-guide-from-5.x.y-to-5.x.z/).

Users are encouraged to upgrade to 5.2.1.

Related links:

- [ScyllaDB Open Source 5.2](https://forum.scylladb.com/t/release-scylla-5-2-0-release-part-1/519)
- [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 5.1.x to 5.2.y](https://docs.scylladb.com/stable/upgrade/upgrade-opensource/upgrade-guide-from-5.1-to-5.2/index.html)
- Please[let us know](https://github.com/scylladb/scylla/issues) if you encounter an issue.

Issue fixed in this release:

- Stability: db/view: update view generator doesn’t close staging sstable reader on exceptions [#13413](https://github.com/scylladb/scylladb/issues/13413)
- Stability: direct\_failure\_detector::ping\_with\_timeout() causes exceptions to be thrown every 100ms times the number of live nodes, which spam the logs, and might slow it down [#13278](https://github.com/scylladb/scylladb/issues/13278)
- Stability: on\_internal\_error doesn’t log an error when not aborting [#13786](https://github.com/scylladb/scylladb/issues/13786)
- Stability: Replication of default auth settings may fail [#2852](https://github.com/scylladb/scylladb/issues/2852)
- Stability: Fix removing replace node as pending [#13379](https://github.com/scylladb/scylladb/issues/13379)
- Stability: bad\_alloc (seastar - Failed to allocate 536870912 bytes) [#13491](https://github.com/scylladb/scylladb/issues/13491). Root cause is a logic fault causing the reader to attempt to read all the data, consuming all memory. Can occur during sstableloader/nodetool refresh, repair or range scan.
- Packaging: RPM package dependencies issue. When installing a specific version with yum/dnf, scylla-python3 version will not match the specified version, but the latest one. [#13222](https://github.com/scylladb/scylladb/issues/13222)
- Packaging: scylla-gdb breaks with gdb 13.1-1.fc37 [#13125](https://github.com/scylladb/scylladb/issues/13125). Does not affect release version of Scylla
- CQL: Aggregate functions do not work on counter columns. [#12939](https://github.com/scylladb/scylladb/issues/12939). Note tha UDA and UDF are experimental in 5.1.x
- Docs: information that BYPASS CACHE is not Enterprise-only feature [#13106](https://github.com/scylladb/scylladb/issues/13106)
- Docs: remove out of date info on the CDC page [#12964](https://github.com/scylladb/scylladb/issues/12964)
- Docs: remove unsupported sequential repair mode from docs. [#12132](https://github.com/scylladb/scylladb/issues/12132)