diff --git a/gradle.properties b/gradle.properties
index 90b2c8401118..52062b6fbf9c 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -26,7 +26,7 @@ systemProp.org.gradle.internal.publish.checksums.insecure=true
 # This is version for Calcite itself
 # Note: it should not include "-SNAPSHOT" as it is automatically added by build.gradle.kts
 # Release version can be generated by using -Prelease or -Prc=<int> arguments
-calcite.version=1.38.0
+calcite.version=1.39.0
 # This is a version to be used from Maven repository. It can be overridden by localAvatica below
 calcite.avatica.version=1.25.0
 
diff --git a/site/_docs/history.md b/site/_docs/history.md
index 3c97d65f3561..c6125069aaa8 100644
--- a/site/_docs/history.md
+++ b/site/_docs/history.md
@@ -67,7 +67,7 @@ None.
 {: #site-1-39-0}
 -->
 
-## <a href="https://github.com/apache/calcite/releases/tag/calcite-1.38.0">1.38.0</a> / 2024-10-14
+## <a href="https://github.com/apache/calcite/releases/tag/calcite-1.38.0">1.38.0</a> / 2024-10-15
 {: #v1-38-0}
 
 This release comes 5 months after [1.37.0](#v1-37-0),
diff --git a/site/_docs/howto.md b/site/_docs/howto.md
index c0d8626d3654..831a260a876e 100644
--- a/site/_docs/howto.md
+++ b/site/_docs/howto.md
@@ -683,8 +683,8 @@ asfGitSourcePassword=
 Note:
 * Both `asfNexusUsername` and `asfSvnUsername` are your apache id with `asfNexusPassword` and
 `asfSvnPassword` are corresponding password.
-* Git source account can be configured to either Gitbox (the default) or Github. For Gitbox, `asfGitSourceUsername`
-is your apache id, and `asfGitSourcePassword` is the corresponding password. For Github, `asfGitSourceUsername`
+* Git source account can be configured to either Gitbox (the default) or GitHub. For Gitbox, `asfGitSourceUsername`
+is your apache id, and `asfGitSourcePassword` is the corresponding password. For GitHub, `asfGitSourceUsername`
 is your GitHub id while `asfGitSourcePassword` is not your GitHub password, you need to generate it in
 https://github.com/settings/tokens choosing `Personal access tokens`.
 
@@ -841,7 +841,7 @@ git clean -xn
 ./gradlew prepareVote -Prc=0
 
 # Push release candidate to ASF servers
-# If you prefer to use Github account, change pushRepositoryProvider to GITHUB
+# If you prefer to use GitHub account, change pushRepositoryProvider to GITHUB
 ./gradlew prepareVote -Prc=0 -Pasf -Pasf.git.pushRepositoryProvider=GITBOX
 {% endhighlight %}
 
@@ -955,7 +955,7 @@ No 0s or -1s.
 Therefore, I am delighted to announce that the proposal to release
 Apache Calcite X.Y.Z has passed.
 
-Thanks everyone. We’ll now roll the release out to the mirrors.
+Thanks everyone. We’ll now publish and announce the release.
 
 There was some feedback during voting. I shall open a separate
 thread to discuss.
@@ -978,7 +978,7 @@ Remember that UTC date changes at 4 pm Pacific time.
 ./gradlew publishDist -Prc=0
 
 # Publish the release to ASF servers
-# If you prefer to use Github account, change pushRepositoryProvider to GITHUB
+# If you prefer to use GitHub account, change pushRepositoryProvider to GITHUB
 ./gradlew publishDist -Prc=0 -Pasf -Pasf.git.pushRepositoryProvider=GITBOX
 {% endhighlight %}
 
@@ -1017,15 +1017,15 @@ Make sure to add the version number and date of the latest release at the site l
 
 The release notes and the javadoc of the new version will be automatically deployed to the website
 once the release commits/tags reach the ASF remote and the respective
-[Gitub workflows](https://github.com/apache/calcite/blob/main/.github/workflows/) are triggered.
+[GitHub workflows](https://github.com/apache/calcite/blob/main/.github/workflows/) are triggered.
 
 Add a release announcement by copying
 [site/_posts/2016-10-12-release-1.10.0.md]({{ site.sourceRoot }}/site/_posts/2016-10-12-release-1.10.0.md),
 and adapt the release date in `history.md` if necessary. Preview the changes locally, by following the
 instructions in [site/README.md]({{ site.sourceRoot }}/site/README.md), and then commit and push
 the changes to the `main` branch. Please note that due to [CALCITE-5584](https://issues.apache.org/jira/browse/CALCITE-5584),
-the commit should be pushed to Github as the last commit, do not chain it with "Prepare for next development iteration"
-commit.
+the commit should be pushed to GitHub as the last commit; do not chain it with
+the "Prepare for next development iteration" commit.
 
 Ensure that all changes to the website (news, release notes, javadoc) are correctly displayed.
 
diff --git a/site/_posts/2024-10-15-release-1.38.0.md b/site/_posts/2024-10-15-release-1.38.0.md
new file mode 100644
index 000000000000..b93f489c676a
--- /dev/null
+++ b/site/_posts/2024-10-15-release-1.38.0.md
@@ -0,0 +1,46 @@
+---
+layout: news_item
+date: "2024-10-15 10:30:00 +0000"
+author: jhyde
+version: 1.38.0
+categories: [release]
+tag: v1-38-0
+sha: e5e7faeff5985bc1b2342144b2bd31ca8ea84d3a
+---
+<!--
+{% comment %}
+Licensed to the Apache Software Foundation (ASF) under one or more
+contributor license agreements.  See the NOTICE file distributed with
+this work for additional information regarding copyright ownership.
+The ASF licenses this file to you under the Apache License, Version 2.0
+(the "License"); you may not use this file except in compliance with
+the License.  You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+{% endcomment %}
+-->
+
+The [Apache Calcite PMC]({{ site.baseurl }}) is pleased to announce
+[Apache Calcite release 1.38.0]({{ site.baseurl }}/docs/history.html#v1-38-0).
+
+This release comes 5 months after [1.37.0](#v1-37-0),
+contains contributions from 39 contributors, and resolves 165 issues.
+Highlights include the
+[`AS MEASURE`](https://issues.apache.org/jira/browse/CALCITE-4496)
+clause to define measures and use them in
+[simple queries](https://issues.apache.org/jira/browse/CALCITE-6519),
+[`ASOF` join](https://issues.apache.org/jira/browse/CALCITE-6372),
+the
+[`EXCLUDE`](https://issues.apache.org/jira/browse/CALCITE-5855)
+clause in window aggregates, Postgres-compatible implementations of the
+[`TO_DATE`, `TO_TIMESTAMP`](https://issues.apache.org/jira/browse/CALCITE-6449)
+and
+[`TO_CHAR`](https://issues.apache.org/jira/browse/CALCITE-6358)
+functions, and the extension of the type system to allow
+[types with negative scale](https://issues.apache.org/jira/browse/CALCITE-6560).