# \[RELEASE\] ScyllaDB 5.1.16

**URL:** <https://forum.scylladb.com/t/release-scylladb-5-1-16/817>\
**Category:** Release Notes\
**Tags:** open-source, open-source-release, open-source-5-1\
**Created:** [August 30, 2023, 6:06pm UTC](https://forum.scylladb.com/t/release-scylladb-5-1-16/817 "2023-08-30T18:06:31Z")\
**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:** [August 30, 2023, 6:06pm UTC](https://forum.scylladb.com/t/release-scylladb-5-1-16/817/1 "2023-08-30T18:06:31Z")

</div>

The ScyllaDB team announces ScyllaDB Open Source 5.1.16, 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 5.1.16, 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/) - 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:

- CQL: Cannot Cast Counter To Double [#14501](https://github.com/scylladb/scylladb/issues/14501)
- Nodetool: Incorrect output in cfhistograms/tablehistograms [#10089](https://github.com/scylladb/scylladb/issues/10089)
- CQL: Missing counterasblob() function, converting from Counter to Blob [#14742](https://github.com/scylladb/scylladb/issues/14742)
- Stability: an extremely rare case can cause Iterator invalidation in lsa\_partition\_reader::reset\_state(), following by process exit [#14696](https://github.com/scylladb/scylladb/issues/14696)
- Stability: Mitigate semaphore mismatch when possible. This does not affect Open Source users. [#14770](https://github.com/scylladb/scylladb/issues/14770)
- Stability: when tables are dropped during a running repair, a repair\_tracker run failed: data\_dictionary::no\_such\_column\_family [#13045](https://github.com/scylladb/scylladb/issues/13045)
- Stability: Temporary SSTables generated by incremental compaction (used by LCS) are being incorrectly compacted [#14560](https://github.com/scylladb/scylladb/issues/14560)
- Stability: view\_updating\_consumer does not account for partition header size. In extreme case, this bug can cause OOM and exit when MV is created from a base table with many small partitions [#14819](https://github.com/scylladb/scylladb/issues/14819)