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new 595817d712 docs: announce JDK 11 and Spark 3.4 deprecation for 1.1.0
removal (#4857)
595817d712 is described below
commit 595817d7126ac65c5f92e997d6589c56c98c9782
Author: Andy Grove <[email protected]>
AuthorDate: Wed Jul 8 07:22:32 2026 -0600
docs: announce JDK 11 and Spark 3.4 deprecation for 1.1.0 removal (#4857)
Add deprecation warnings to the user guide installation page and the Spark
version compatibility page noting that JDK 11 and Spark 3.4 support are
deprecated as of the 1.0.0 release and will be removed in 1.1.0.
---
docs/source/user-guide/latest/compatibility/spark-versions.md | 9 +++++++++
docs/source/user-guide/latest/installation.md | 5 +++++
2 files changed, 14 insertions(+)
diff --git a/docs/source/user-guide/latest/compatibility/spark-versions.md
b/docs/source/user-guide/latest/compatibility/spark-versions.md
index 5715fef765..94ba0b4968 100644
--- a/docs/source/user-guide/latest/compatibility/spark-versions.md
+++ b/docs/source/user-guide/latest/compatibility/spark-versions.md
@@ -28,6 +28,10 @@ compatibility guide.
Spark 3.4.3 is supported with Java 11/17 and Scala 2.12/2.13.
+```{warning}
+Spark 3.4 support is deprecated as of the 1.0.0 release and will be removed in
the 1.1.0 release.
+```
+
### Known Limitations
- **Reading `TimestampLTZ` as `TimestampNTZ`**: Spark 3.4 raises an error for
this operation
@@ -43,6 +47,11 @@ Spark 3.4.3 is supported with Java 11/17 and Scala 2.12/2.13.
Spark 3.5.8 is supported with Java 11/17 and Scala 2.12/2.13.
+```{warning}
+JDK 11 support is deprecated as of the 1.0.0 release and will be removed in
the 1.1.0 release.
+We recommend moving to JDK 17 or later.
+```
+
### Known Limitations
- **Reading `TimestampLTZ` as `TimestampNTZ`**: Spark 3.5 raises an error for
this operation
diff --git a/docs/source/user-guide/latest/installation.md
b/docs/source/user-guide/latest/installation.md
index 3bd1ec27ee..ea3cc348bd 100644
--- a/docs/source/user-guide/latest/installation.md
+++ b/docs/source/user-guide/latest/installation.md
@@ -45,6 +45,11 @@ in the [Compatibility Guide] for more information, such as
known limitations per
We recommend only using Comet with Spark versions where we currently have both
Comet and Spark tests enabled in CI.
Other versions may work well enough for development and evaluation purposes.
+```{warning}
+JDK 11 and Spark 3.4 support are deprecated as of the 1.0.0 release and will
be removed in the 1.1.0 release.
+We recommend moving to JDK 17 or later and Spark 3.5 or later.
+```
+
| Spark Version | Java Version | Scala Version | Comet Tests in CI | Spark SQL
Tests in CI |
| ------------- | ------------ | ------------- | ----------------- |
--------------------- |
| 3.4.3 | 11/17 | 2.12/2.13 | Yes | Yes
|
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