docs: remove project-status checklist

README.md

@@ -43,7 +43,7 @@ and is built with Sphinx (see [`docs/README.md`](docs/README.md) for the
 build steps):
 
 - [User guide](docs/source/user-guide/index.md) — installation, the
-  DataFrame and SQL APIs, Parquet ingestion, project status.
+  DataFrame and SQL APIs, Parquet ingestion.
 - [Contributor guide](docs/source/contributor-guide/index.md) — build,
   test, code style, and how to bump the DataFusion version.
 

docs/source/user-guide/dataframe.md

@@ -35,8 +35,8 @@ not start until you pull results.
 
 ## DataFrame transformations
 
-The DataFrame API exposes `select` and `filter` today. Other
-transformations are TBD — see [Project status](project-status.md).
+The DataFrame API exposes `select`, `filter`, `limit`, `distinct`,
+`dropColumns`, and `withColumnRenamed`.
 
 ```java
 try (DataFrame df = ctx.readParquet("/path/to/orders.parquet")) {

docs/source/user-guide/index.md

@@ -37,7 +37,6 @@ sessioncontext
 dataframe
 parquet
 proto-plans
-project-status
 api-reference
 ```
 

docs/source/user-guide/sessioncontext.md

@@ -40,9 +40,23 @@ A `SessionContext` is **not thread-safe**. Do not share one across threads
 without external synchronization. The simplest pattern is one context per
 thread.
 
-## What's configurable today
+## Configuration
+
+`SessionContext.builder()` exposes a fluent builder for overriding
+DataFusion defaults — batch size, target partitions, statistics
+collection, information schema, memory pool size, and the spill
+directory. See the
+<!-- Raw HTML link: MyST resolves relative .html Markdown links as
+     cross-references, which fails sphinx-build -W. The Javadoc tree is
+     copied verbatim via html_extra_path and is unknown to Sphinx. -->
+<a href="../api/org/apache/datafusion/SessionContextBuilder.html"><code>SessionContextBuilder</code></a>
+Javadoc for the full list.
 
-Today, `SessionContext` exposes only data-source registration and query
-construction. Tuning knobs that DataFusion offers natively
-(`SessionConfig`, `RuntimeEnv`) are not yet wired through the Java API.
-See [Project status](project-status.md) for the current shape of the API.
+```java
+try (SessionContext ctx = SessionContext.builder()
+        .batchSize(4096)
+        .targetPartitions(8)
+        .build()) {
+    // ...
+}
+```