diff --git a/README b/README
index f561c53fa85..87c004816e5 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-Apache Calcite release 1.33.0
+Apache Calcite release 1.34.0
This is a source or binary distribution of Apache Calcite.
diff --git a/site/_docs/history.md b/site/_docs/history.md
index cbf27d26877..b83ed621280 100644
--- a/site/_docs/history.md
+++ b/site/_docs/history.md
@@ -29,10 +29,10 @@ Downloads are available on the
[downloads page]({{ site.baseurl }}/downloads/).
+
+## 1.34.0 / 2023-03-XX
+{: #v1-34-0}
+
+This release comes 1 month after [1.33.0](#v1-33-0),
+contains contributions from 18 contributors, and resolves 34 issues. It's worth highlighting the
+introduction of QUALIFY clause ([CALCITE-5268]),
+which facilitates filtering the results of window functions. Among other improvements and fixes, it
+adds roughly 15 new functions in BigQuery library for handling dates, times, and timestamps, and
+provides a fix ([CALCITE-5522])
+for a small breaking change in `DATE_TRUNC` function
+([CALCITE-5447]), which was
+introduced accidentally in [1.33.0](#v1-33-0).
+
+Contributors to this release:
+Alessandro Solimando,
+Benchao Li,
+Brandon Chong,
+Dmitry Sysolyatin,
+Francis Chuang,
+Gian Merlino,
+Guillaume Massé,
+Jiajun Xie,
+Julian Hyde,
+Moritz Mack,
+Oliver Lee,
+Peng Wang,
+Stamatis Zampetakis (release manager),
+Tanner Clary,
+Tim Nieradzik,
+TJ Banghart,
+xinqiu.hu,
+Zou Dan.
+
+
+
#### Breaking Changes
{: #breaking-1-34-0}
-As of [CALCITE-3870](https://issues.apache.org/jira/browse/CALCITE-3870),
-the default value of
+[CALCITE-3870]
+ Change the default value of
[SqlToRelConverter.Config.expand](https://calcite.apache.org/javadocAggregate/org/apache/calcite/sql2rel/SqlToRelConverter.Config.html#isExpand())
-is now false, which means that `SqlToRelConverter` handles sub-queries (such
+from true to false. From now on `SqlToRelConverter`, handles sub-queries (such
as `IN`, `EXISTS`, and scalar sub-queries) by converting them to `RexSubQuery`
expressions, rather than expanding them. To expand these `RexSubQuery`
expressions, the `SubQueryRemoveRule` rule must be enabled in the planning
phase.
-
To keep the old behavior (which is discouraged but still supported),
-initialize `SqlToRelConverter` using
-`SqlToRelConverter.config().withExpandDeprecated(true)` as the value for the `config`
-argument.
+initialize `SqlToRelConverter` using `SqlToRelConverter.config().withExpand(true)` as the value for
+the `config` argument.
Compatibility: This release is tested on Linux, macOS, Microsoft Windows;
using JDK/OpenJDK versions 8 to 18;
@@ -65,18 +125,82 @@ other software versions as specified in gradle.properties.
#### New features
{: #new-features-1-34-0}
+* [CALCITE-5268]
+ Add `QUALIFY` clause
+* [CALCITE-5469]
+ Add `DATETIME_ADD`, `DATETIME_DIFF`, `DATE_ADD`, `DATE_DIFF` functions (enabled in BigQuery library)
+* [CALCITE-5484]
+ Add `DATETIME_SUB` function (enabled in BigQuery library)
+* [CALCITE-5357]
+ Add `FORMAT_TIME`, `FORMAT_DATE`, `FORMAT_DATETIME`, `FORMAT_TIMESTAMP` functions (enabled in BigQuery library)
+* [CALCITE-5508]
+ Add constructor functions for `DATE`, `TIME`, `TIMESTAMP`, `DATETIME` (enabled in BigQuery library)
+
#### Dependency version upgrade
{: #dependency-1-34-0}
+* Bump Quidem from 0.10 to 0.11
+
#### Bug-fixes, API changes and minor enhancements
{: #fixes-1-34-0}
+* [CALCITE-5545]
+ Allow for overriding `SqlValidator` to enable custom `SqlNode` validation
+* [CALCITE-5504]
+ Array value constructor is unparsed incorrectly for `SparkSqlDialect`
+* [CALCITE-5518]
+ `RelToSqlConverter` generates invalid order of `ROLLUP` fields
+* [CALCITE-5510]
+ `RelToSqlConverter` should use ordinal for `ORDER BY` if the dialect allows
+* [CALCITE-5478]
+ Use highest input precision for datetimes in `SqlTypeFactoryImpl.leastRestrictive`
+* [CALCITE-5522]
+ Babel parser cannot handle some overloads of the `DATE_TRUNC` function
+* [CALCITE-5531]
+ `COALESCE` function throws `ClassCastException`
+* [CALCITE-5507]
+ `HAVING` alias fails for mixed usage of alias and aggregate function
+* [CALCITE-5503]
+ `CheapestPlanReplacer` should reuse repeated nodes in a DAG plan
+* [CALCITE-5468]
+ `SqlToRelConverter` throws if `ORDER BY` contains `IN`
+* [CALCITE-5515]
+ Add keyspace parameter to `CassandraSchema` and `CassandraTable`
+* [CALCITE-5416]
+ JDBC adapter for MySQL 5 incorrectly combines `GROUP BY ROLLUP` and `ORDER BY` clauses
+* [CALCITE-5505]
+ JavaCC warns about missing LOOKAHEAD directives in Parser.jj
+* [CALCITE-5514]
+ In `RelJson`, add a public `toRex()` instance method
+* [CALCITE-5442]
+ Tweak janino code generation in `EnumerableInterpretable` to allow debugging
+* [CALCITE-5521]
+ Remove redundant rowtype check in `RelSubset#add`
+* [CALCITE-5483]
+ `ProjectAggregateMergeRule` throws exception if literal is non-numeric
+* `TryThreadLocal` values are now not-null by default
+
#### Build and test suite
{: #build-1-34-0}
+* [CALCITE-5546]
+ Code style: Break long assignment expressions after '='
+* [CALCITE-5501]
+ `SqlToRelConverterTest.checkActualAndReferenceFiles` fails intermittently in Jenkins CI
+* Add test for [CALCITE-5524] JDBC adapter generates `LIMIT`, `OFFSET` in wrong order for Presto dialect
+* Add tests for [CALCITE-2980] Implement the `FORMAT` clause of the `CAST` operator
+* [CALCITE-5537]
+ Slow test case failures in `LatticeSuggesterTest`
+* Autostyle: Disallow space or newline before ')' in method declaration or call
+
#### Web site and documentation
{: #site-1-34-0}
--->
+
+* [CALCITE-5555]
+ Remove obsolete instructions for processing requests for new JIRA accounts
+* [CALCITE-5550]
+ Update instructions for requesting Jira account to use self-serve facility
+* `CompositeOperandTypeChecker`'s javadoc uses wrong class name
## 1.33.0 / 2023-02-06
{: #v1-33-0}
diff --git a/site/_docs/howto.md b/site/_docs/howto.md
index 0c5bb470cc5..64a52cf6fd6 100644
--- a/site/_docs/howto.md
+++ b/site/_docs/howto.md
@@ -39,8 +39,8 @@ Unpack the source distribution `.tar.gz` file,
then build using Gradle:
{% highlight bash %}
-$ tar xvfz apache-calcite-1.33.0-src.tar.gz
-$ cd apache-calcite-1.33.0-src
+$ tar xvfz apache-calcite-1.34.0-src.tar.gz
+$ cd apache-calcite-1.34.0-src
$ gradle build
{% endhighlight %}