diff --git a/.codegen/_openapi_sha b/.codegen/_openapi_sha
old mode 100644
new mode 100755
index 1d6e4ef6d..f7a09353d
--- a/.codegen/_openapi_sha
+++ b/.codegen/_openapi_sha
@@ -1 +1 @@
-be3508ec66fbe13df2d060df5653df8f57895928
\ No newline at end of file
+7f3b1f42ed37e16e6beb764dfd099c29021bb5a5
\ No newline at end of file
diff --git a/NEXT_CHANGELOG.md b/NEXT_CHANGELOG.md
old mode 100644
new mode 100755
index 9f729752c..5e4e63018
--- a/NEXT_CHANGELOG.md
+++ b/NEXT_CHANGELOG.md
@@ -13,3 +13,4 @@
 ### Internal Changes
 
 ### API Changes
+* [Breaking] Change `username` field for `com.databricks.sdk.service.iamv2.User` to no longer be required.
\ No newline at end of file
diff --git a/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/AwsSqsQueue.java b/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/AwsSqsQueue.java
index 2b036538e..03fece6f9 100755
--- a/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/AwsSqsQueue.java
+++ b/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/AwsSqsQueue.java
@@ -14,8 +14,8 @@ public class AwsSqsQueue {
   private String managedResourceId;
 
   /**
-   * The AQS queue url in the format https://sqs.{region}.amazonaws.com/{account id}/{queue name}
-   * Required for provided_sqs.
+   * The AQS queue url in the format https://sqs.{region}.amazonaws.com/{account id}/{queue name}.
+   * Only required for provided_sqs.
    */
   @JsonProperty("queue_url")
   private String queueUrl;
diff --git a/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/AzureQueueStorage.java b/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/AzureQueueStorage.java
index 3987c0305..c07b5e105 100755
--- a/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/AzureQueueStorage.java
+++ b/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/AzureQueueStorage.java
@@ -15,13 +15,13 @@ public class AzureQueueStorage {
 
   /**
    * The AQS queue url in the format https://{storage account}.queue.core.windows.net/{queue name}
-   * Required for provided_aqs.
+   * Only required for provided_aqs.
    */
   @JsonProperty("queue_url")
   private String queueUrl;
 
   /**
-   * The resource group for the queue, event grid subscription, and external location storage
+   * Optional resource group for the queue, event grid subscription, and external location storage
    * account. Only required for locations with a service principal storage credential
    */
   @JsonProperty("resource_group")
diff --git a/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/CreateExternalLocation.java b/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/CreateExternalLocation.java
index 63b70fb7a..89321f4a6 100755
--- a/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/CreateExternalLocation.java
+++ b/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/CreateExternalLocation.java
@@ -17,7 +17,10 @@ public class CreateExternalLocation {
   @JsonProperty("credential_name")
   private String credentialName;
 
-  /** Whether to enable file events on this external location. */
+  /**
+   * Whether to enable file events on this external location. Default to `true`. Set to `false` to
+   * disable file events.
+   */
   @JsonProperty("enable_file_events")
   private Boolean enableFileEvents;
 
@@ -34,8 +37,8 @@ public class CreateExternalLocation {
   private Boolean fallback;
 
   /**
-   * File event queue settings. If `enable_file_events` is `true`, must be defined and have exactly
-   * one of the documented properties.
+   * File event queue settings. If `enable_file_events` is not `false`, must be defined and have
+   * exactly one of the documented properties.
    */
   @JsonProperty("file_event_queue")
   private FileEventQueue fileEventQueue;
diff --git a/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/ExternalLocationInfo.java b/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/ExternalLocationInfo.java
index 4e91f1d6e..cb5f98513 100755
--- a/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/ExternalLocationInfo.java
+++ b/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/ExternalLocationInfo.java
@@ -36,7 +36,10 @@ public class ExternalLocationInfo {
   @JsonProperty("credential_name")
   private String credentialName;
 
-  /** Whether to enable file events on this external location. */
+  /**
+   * Whether to enable file events on this external location. Default to `true`. Set to `false` to
+   * disable file events.
+   */
   @JsonProperty("enable_file_events")
   private Boolean enableFileEvents;
 
@@ -53,8 +56,8 @@ public class ExternalLocationInfo {
   private Boolean fallback;
 
   /**
-   * File event queue settings. If `enable_file_events` is `true`, must be defined and have exactly
-   * one of the documented properties.
+   * File event queue settings. If `enable_file_events` is not `false`, must be defined and have
+   * exactly one of the documented properties.
    */
   @JsonProperty("file_event_queue")
   private FileEventQueue fileEventQueue;
diff --git a/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/GcpPubsub.java b/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/GcpPubsub.java
index 226e0f45c..1e2b9c93c 100755
--- a/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/GcpPubsub.java
+++ b/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/GcpPubsub.java
@@ -15,7 +15,7 @@ public class GcpPubsub {
 
   /**
    * The Pub/Sub subscription name in the format projects/{project}/subscriptions/{subscription
-   * name} Required for provided_pubsub.
+   * name}. Only required for provided_pubsub.
    */
   @JsonProperty("subscription_name")
   private String subscriptionName;
diff --git a/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/PolicyInfo.java b/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/PolicyInfo.java
index d3772b1fe..d24d09501 100755
--- a/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/PolicyInfo.java
+++ b/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/PolicyInfo.java
@@ -60,21 +60,18 @@ public class PolicyInfo {
   @JsonProperty("name")
   private String name;
 
-  /**
-   * Full name of the securable on which the policy is defined. Required on create and ignored on
-   * update.
-   */
+  /** Full name of the securable on which the policy is defined. Required on create. */
   @JsonProperty("on_securable_fullname")
   private String onSecurableFullname;
 
   /**
    * Type of the securable on which the policy is defined. Only `CATALOG`, `SCHEMA` and `TABLE` are
-   * supported at this moment. Required on create and ignored on update.
+   * supported at this moment. Required on create.
    */
   @JsonProperty("on_securable_type")
   private SecurableType onSecurableType;
 
-  /** Type of the policy. Required on create and ignored on update. */
+  /** Type of the policy. Required on create. */
   @JsonProperty("policy_type")
   private PolicyType policyType;
 
diff --git a/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/UpdateExternalLocation.java b/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/UpdateExternalLocation.java
index 258f5b765..17bad5e84 100755
--- a/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/UpdateExternalLocation.java
+++ b/databricks-sdk-java/src/main/java/com/databricks/sdk/service/catalog/UpdateExternalLocation.java
@@ -18,7 +18,10 @@ public class UpdateExternalLocation {
   @JsonProperty("credential_name")
   private String credentialName;
 
-  /** Whether to enable file events on this external location. */
+  /**
+   * Whether to enable file events on this external location. Default to `true`. Set to `false` to
+   * disable file events.
+   */
   @JsonProperty("enable_file_events")
   private Boolean enableFileEvents;
 
@@ -35,8 +38,8 @@ public class UpdateExternalLocation {
   private Boolean fallback;
 
   /**
-   * File event queue settings. If `enable_file_events` is `true`, must be defined and have exactly
-   * one of the documented properties.
+   * File event queue settings. If `enable_file_events` is not `false`, must be defined and have
+   * exactly one of the documented properties.
    */
   @JsonProperty("file_event_queue")
   private FileEventQueue fileEventQueue;
diff --git a/databricks-sdk-java/src/main/java/com/databricks/sdk/service/postgres/ErrorCode.java b/databricks-sdk-java/src/main/java/com/databricks/sdk/service/postgres/ErrorCode.java
index c59a6d229..32071be89 100755
--- a/databricks-sdk-java/src/main/java/com/databricks/sdk/service/postgres/ErrorCode.java
+++ b/databricks-sdk-java/src/main/java/com/databricks/sdk/service/postgres/ErrorCode.java
@@ -4,11 +4,7 @@
 
 import com.databricks.sdk.support.Generated;
 
-/**
- * Legacy definition of the ErrorCode enum. Please keep in sync with api-base/proto/error_code.proto
- * (except status code mapping annotations as this file doesn't have them). Will be removed
- * eventually, pending the ScalaPB 0.4 cleanup.
- */
+/** Error codes returned by Databricks APIs to indicate specific failure conditions. */
 @Generated
 public enum ErrorCode {
   ABORTED,
diff --git a/databricks-sdk-java/src/test/java/com/databricks/sdk/service/lrotesting/ErrorCode.java b/databricks-sdk-java/src/test/java/com/databricks/sdk/service/lrotesting/ErrorCode.java
index 5e05b357b..984d0162b 100755
--- a/databricks-sdk-java/src/test/java/com/databricks/sdk/service/lrotesting/ErrorCode.java
+++ b/databricks-sdk-java/src/test/java/com/databricks/sdk/service/lrotesting/ErrorCode.java
@@ -4,11 +4,7 @@
 
 import com.databricks.sdk.support.Generated;
 
-/**
- * Legacy definition of the ErrorCode enum. Please keep in sync with api-base/proto/error_code.proto
- * (except status code mapping annotations as this file doesn't have them). Will be removed
- * eventually, pending the ScalaPB 0.4 cleanup.
- */
+/** Error codes returned by Databricks APIs to indicate specific failure conditions. */
 @Generated
 public enum ErrorCode {
   ABORTED,