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new 335e1ada46 Generate 4.18.1 release note (#4888)
335e1ada46 is described below
commit 335e1ada4658f8cf6a121042599b0b5c2d08db60
Author: Matteo Merli <[email protected]>
AuthorDate: Tue Sep 15 08:46:40 2026 -0700
Generate 4.18.1 release note (#4888)
---
site3/website/src/pages/release-notes.md | 38 ++++++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/site3/website/src/pages/release-notes.md
b/site3/website/src/pages/release-notes.md
index 4ca91cbb75..2bfadef6fc 100644
--- a/site3/website/src/pages/release-notes.md
+++ b/site3/website/src/pages/release-notes.md
@@ -4,6 +4,44 @@ format: md
<!-- markdown-link-check-disable -->
# Release notes
+## 4.18.1
+
+Release 4.18.1 includes a few new client APIs, several performance
improvements, bug fixes and dependency updates.
+
+Apache BookKeeper users are encouraged to upgrade to 4.18.1 if you are using
4.18.x.
+The technical details of this release are summarized below.
+
+### Features
+
+* Pin a ledger's callbacks to a caller-chosen worker thread via
`withOrderingKey` [PR #4881](https://github.com/apache/bookkeeper/pull/4881)
+* Add `OpenBuilder.withKeepUpdateMetadata` and
`DeleteBuilder.withLoggerContext` to the builder API [PR
#4834](https://github.com/apache/bookkeeper/pull/4834)
+
+### Improvements
+
+* Add `SingleThreadExecutor.executeOrRun` and issue reads inline from the
ledger's own thread [PR #4883](https://github.com/apache/bookkeeper/pull/4883)
+* Avoid per-checksum boxing in Java9IntHash by using MethodHandle.invokeExact
[PR #4876](https://github.com/apache/bookkeeper/pull/4876)
+* Use batch-draining queues in SingleThreadExecutor [PR
#4836](https://github.com/apache/bookkeeper/pull/4836)
+* Skip journal flush-trace loop when debug logging is disabled [PR
#4835](https://github.com/apache/bookkeeper/pull/4835)
+* Write journal entry length prefix and payload in a single BufferedChannel
write [PR #4833](https://github.com/apache/bookkeeper/pull/4833)
+* Use ThreadLocalRandom for thread selection in OrderedExecutor [PR
#4832](https://github.com/apache/bookkeeper/pull/4832)
+* Add spin-wait hint to BlockingMpscQueue producer-side busy loops [PR
#4831](https://github.com/apache/bookkeeper/pull/4831)
+
+### Bugs
+
+* Revert "Fix read thread blocking in sendResponseAndWait causing
READ_ENTRY_REQUEST p99 latency spike (#4730)" [PR
#4830](https://github.com/apache/bookkeeper/pull/4830)
+* Prevent thread leak when BookKeeper client constructor fails [PR
#4798](https://github.com/apache/bookkeeper/pull/4798)
+
+### Dependency updates
+
+* Bump Jetty to 12.1.10 and fix binary license metadata [PR
#4871](https://github.com/apache/bookkeeper/pull/4871)
+* Bump org.apache.thrift:libthrift from 0.23.0 to 0.24.0 [PR
#4874](https://github.com/apache/bookkeeper/pull/4874)
+* Bump at.yawk.lz4:lz4-java from 1.10.2 to 1.11.1 [PR
#4869](https://github.com/apache/bookkeeper/pull/4869)
+* Bump bytes from 1.5.0 to 1.11.1 in native-io Rust module [PR
#4747](https://github.com/apache/bookkeeper/pull/4747)
+
+#### Details
+
+https://github.com/apache/bookkeeper/pulls?q=is%3Apr+label%3Arelease%2F4.18.1+is%3Amerged
+
## 4.17.4
Release 4.17.4 includes multiple bug fixes and few dependency updates.
