diff --git a/docs/changelogs/v23.3.8.21-lts.md b/docs/changelogs/v23.3.8.21-lts.md
new file mode 100644
index 00000000000..83b5070ef52
--- /dev/null
+++ b/docs/changelogs/v23.3.8.21-lts.md
@@ -0,0 +1,23 @@
+---
+sidebar_position: 1
+sidebar_label: 2023
+---
+
+# 2023 Changelog
+
+### ClickHouse release v23.3.8.21-lts (1675f2264f3) FIXME as compared to v23.3.7.5-lts (bc683c11c92)
+
+#### Bug Fix (user-visible misbehavior in an official stable release)
+
+* Fix backward compatibility for IP types hashing in aggregate functions [#50551](https://github.com/ClickHouse/ClickHouse/pull/50551) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy)).
+* Fix segfault in MathUnary [#51499](https://github.com/ClickHouse/ClickHouse/pull/51499) ([Ilya Yatsishin](https://github.com/qoega)).
+* Fix for moving 'IN' conditions to PREWHERE [#51610](https://github.com/ClickHouse/ClickHouse/pull/51610) ([Alexander Gololobov](https://github.com/davenger)).
+* Fix reading from empty column in `parseSipHashKey` [#51804](https://github.com/ClickHouse/ClickHouse/pull/51804) ([Nikita Taranov](https://github.com/nickitat)).
+* Check refcount in `RemoveManyObjectStorageOperation::finalize` instead of `execute` [#51954](https://github.com/ClickHouse/ClickHouse/pull/51954) ([vdimir](https://github.com/vdimir)).
+* Allow parametric UDFs [#51964](https://github.com/ClickHouse/ClickHouse/pull/51964) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
+
+#### NOT FOR CHANGELOG / INSIGNIFICANT
+
+* Decoupled commits from [#51180](https://github.com/ClickHouse/ClickHouse/issues/51180) for backports [#51561](https://github.com/ClickHouse/ClickHouse/pull/51561) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
+* Fix MergeTreeMarksLoader segfaulting if marks file is longer than expected [#51636](https://github.com/ClickHouse/ClickHouse/pull/51636) ([Michael Kolupaev](https://github.com/al13n321)).
+
diff --git a/utils/list-versions/version_date.tsv b/utils/list-versions/version_date.tsv
index 6573e3d7683..8b535e3d897 100644
--- a/utils/list-versions/version_date.tsv
+++ b/utils/list-versions/version_date.tsv
@@ -10,6 +10,7 @@ v23.4.4.16-stable	2023-06-17
 v23.4.3.48-stable	2023-06-12
 v23.4.2.11-stable	2023-05-02
 v23.4.1.1943-stable	2023-04-27
+v23.3.8.21-lts	2023-07-13
 v23.3.7.5-lts	2023-06-29
 v23.3.6.7-lts	2023-06-28
 v23.3.5.9-lts	2023-06-22