Enable telemetry by default + prepare to release v1.0.9-oss (#948)

## Description
- [Release checklist (all tests
pass)](https://docs.google.com/document/d/1t-ZHd8133w6-8v7-NOkvBCJrB5qxLKPqRkNUOpb4yVA/edit?tab=t.0)
- [Telemetry readiness
doc](https://docs.google.com/document/d/1oAu1pTCM9VFrPDCt0I_aWsSIoNGOapmGc_2Zob6QUiA/edit?tab=t.0#heading=h.j2e11ackxml8)

## Testing
- The release testing passes

## Additional Notes to the Reviewer
<!-- Share any additional context or insights that may help the reviewer
understand the changes better. This could include challenges faced,
limitations, or compromises made during the development process.
Also, mention any areas of the code that you would like the reviewer to
focus on specifically. -->

Author: samikshya-db

CHANGELOG.md

@@ -1,5 +1,22 @@
 # Version Changelog
 
+## [v1.0.9-oss] - 2025-08-19
+### Added
+- Added support for providing custom HTTP options: `HttpMaxConnectionsPerRoute` and `HttpConnectionRequestTimeout`.
+- Add V2 of chunk download using async http client with corresponding implementations of AbstractRemoteChunkProvider and
+  AbstractArrowResultChunk
+- Telemetry is enabled by default, subject to server-side rollout.
+
+### Updated
+
+### Fixed
+- Fixed Statement.getUpdateCount to return -1 for non-DML queries.
+- Fixed Statement.setMaxRows(0) to be interepeted as no limit.
+- Fixed retry behaviour to not throw an exception when there is no retry-after header for 503 and 429 status codes.
+- Fixed encoded UserAgent parsing in BI tools.
+- Fixed setting empty schema as the default schema in the spark session.
+---
+
 ## [v1.0.8-oss] - 2025-07-25
 
 ### Added

NEXT_CHANGELOG.md

@@ -3,18 +3,10 @@
 ## [Unreleased]
 
 ### Added
-- Added support for providing custom HTTP options: `HttpMaxConnectionsPerRoute` and `HttpConnectionRequestTimeout`.
-- Add V2 of chunk download using async http client with corresponding implementations of AbstractRemoteChunkProvider and 
-AbstractArrowResultChunk
-- Added CircuitBreaker support to handle transient failures in the Telemetry.
 
 ### Updated
 
 ### Fixed
-- Fixed Statement.getUpdateCount to return -1 for non-DML queries.
-- Fixed Statement.setMaxRows(0) to be interepeted as no limit.
-- Fixed retry behaviour to not throw an exception when there is no retry-after header for 503 and 429 status codes.
-- Fixed encoded UserAgent parsing in BI tools.
-- Fixed setting empty schema as the default schema in the spark session.
+
 ---
 *Note: When making changes, please add your change under the appropriate section with a brief description.* 

README.md

@@ -20,7 +20,7 @@ Add the following dependency to your `pom.xml`:
 <dependency>
   <groupId>com.databricks</groupId>
   <artifactId>databricks-jdbc</artifactId>
-  <version>1.0.8-oss</version>
+  <version>1.0.9-oss</version>
 </dependency>
 ```
 

pom.xml

@@ -5,7 +5,7 @@
   <groupId>com.databricks</groupId>
   <artifactId>databricks-jdbc</artifactId>
   <!-- This value may be modified by a release script to reflect the current version of the driver. -->
-  <version>1.0.8-oss</version>
+  <version>1.0.9-oss</version>
   <packaging>jar</packaging>
   <name>Databricks JDBC Driver</name>
   <description>Databricks JDBC Driver.</description>

src/main/java/com/databricks/jdbc/common/DatabricksJdbcUrlParams.java

@@ -91,7 +91,7 @@ public enum DatabricksJdbcUrlParams {
   ENABLE_TELEMETRY(
       "EnableTelemetry",
       "flag to enable telemetry",
-      "0"), // Note : telemetry enablement also depends on the server flag.
+      "1"), // Note : telemetry enablement also depends on the server flag.
   TELEMETRY_BATCH_SIZE("TelemetryBatchSize", "Batch size for telemetry", "200"),
   MAX_BATCH_SIZE("MaxBatchSize", "Maximum batch size", "500"),
   ALLOWED_VOLUME_INGESTION_PATHS("VolumeOperationAllowedLocalPaths", ""),

src/main/java/com/databricks/jdbc/common/util/DriverUtil.java

@@ -20,7 +20,7 @@
 public class DriverUtil {
 
   private static final JdbcLogger LOGGER = JdbcLoggerFactory.getLogger(DriverUtil.class);
-  private static final String DRIVER_VERSION = "1.0.8-oss";
+  private static final String DRIVER_VERSION = "1.0.9-oss";
   private static final String DRIVER_NAME = "oss-jdbc";
   private static final String JDBC_VERSION = "4.3";
 

src/test/java/com/databricks/jdbc/api/impl/DatabricksDatabaseMetaDataTest.java

@@ -801,7 +801,7 @@ public void testGetDriverName() throws SQLException {
   @Test
   public void testGetDriverVersion() throws SQLException {
     String result = metaData.getDriverVersion();
-    assertEquals("1.0.8-oss", result);
+    assertEquals("1.0.9-oss", result);
   }
 
   @Test

src/test/java/com/databricks/jdbc/common/safe/DatabricksDriverFeatureFlagsContextTest.java

@@ -37,7 +37,7 @@ class DatabricksDriverFeatureFlagsContextTest {
   @Mock private ObjectMapper objectMapperMock;
   private static final String FEATURE_FLAG_NAME = "featureFlagName";
   private static final String FEATURE_FLAGS_ENDPOINT =
-      "https://test-host/api/2.0/connector-service/feature-flags/OSS_JDBC/1.0.8";
+      "https://test-host/api/2.0/connector-service/feature-flags/OSS_JDBC/1.0.9";
 
   private DatabricksDriverFeatureFlagsContext context;
 

src/test/java/com/databricks/jdbc/common/util/DriverUtilTest.java

@@ -14,14 +14,14 @@ public class DriverUtilTest {
   public void testGetDriverVersion() {
     String version = DriverUtil.getDriverVersion();
     assertNotNull(version);
-    assertEquals("1.0.8-oss", version);
+    assertEquals("1.0.9-oss", version);
   }
 
   @Test
   public void testGetDriverVersionWithoutOSSSuffix() {
     String version = DriverUtil.getDriverVersionWithoutOSSSuffix();
     assertNotNull(version);
-    assertEquals("1.0.8", version);
+    assertEquals("1.0.9", version);
   }
 
   @Test

src/test/java/com/databricks/jdbc/common/util/UserAgentManagerTest.java

@@ -84,7 +84,7 @@ void testUserAgentSetsClientCorrectly() throws DatabricksSQLException {
         DatabricksConnectionContextFactory.create(CLUSTER_JDBC_URL, new Properties());
     UserAgentManager.setUserAgent(connectionContext);
     String userAgent = getUserAgentString();
-    assertTrue(userAgent.contains("DatabricksJDBCDriverOSS/1.0.8-oss"));
+    assertTrue(userAgent.contains("DatabricksJDBCDriverOSS/1.0.9-oss"));
     assertTrue(userAgent.contains(" Java/THttpClient"));
     assertTrue(userAgent.contains(" MyApp/version"));
     assertTrue(userAgent.contains(" databricks-jdbc-http "));
@@ -95,7 +95,7 @@ void testUserAgentSetsClientCorrectly() throws DatabricksSQLException {
         DatabricksConnectionContextFactory.create(WAREHOUSE_JDBC_URL, new Properties());
     UserAgentManager.setUserAgent(connectionContext);
     userAgent = getUserAgentString();
-    assertTrue(userAgent.contains("DatabricksJDBCDriverOSS/1.0.8-oss"));
+    assertTrue(userAgent.contains("DatabricksJDBCDriverOSS/1.0.9-oss"));
     assertTrue(userAgent.contains(" Java/THttpClient"));
     assertTrue(userAgent.contains(" MyApp/version"));
     assertTrue(userAgent.contains(" databricks-jdbc-http "));
@@ -106,7 +106,7 @@ void testUserAgentSetsClientCorrectly() throws DatabricksSQLException {
         DatabricksConnectionContextFactory.create(WAREHOUSE_JDBC_URL_WITH_SEA, new Properties());
     UserAgentManager.setUserAgent(connectionContext);
     userAgent = getUserAgentString();
-    assertTrue(userAgent.contains("DatabricksJDBCDriverOSS/1.0.8-oss"));
+    assertTrue(userAgent.contains("DatabricksJDBCDriverOSS/1.0.9-oss"));
     assertTrue(userAgent.contains(" Java/SQLExecHttpClient"));
     assertTrue(userAgent.contains(" databricks-jdbc-http "));
     assertFalse(userAgent.contains("databricks-sdk-java"));