Preview PR pingcap/docs#14834 and this preview is triggered from commit

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markdown-pages/en/tidb/master/TOC.md

@@ -4,7 +4,7 @@
 - [Docs Home](https://docs.pingcap.com/)
 - About TiDB
   - [TiDB Introduction](/overview.md)
-  - [TiDB 7.2 Release Notes](/releases/release-7.2.0.md)
+  - [TiDB 7.4 Release Notes](/releases/release-7.4.0.md)
   - [Features](/basic-features.md)
   - [MySQL Compatibility](/mysql-compatibility.md)
   - [TiDB Limitations](/tidb-limitations.md)
@@ -36,6 +36,18 @@
       - [PyMySQL](/develop/dev-guide-sample-application-python-pymysql.md)
       - [SQLAlchemy](/develop/dev-guide-sample-application-python-sqlalchemy.md)
       - [peewee](/develop/dev-guide-sample-application-python-peewee.md)
+      - [Django](/develop/dev-guide-sample-application-python-django.md)
+    - Node.js
+      - [node-mysql2](/develop/dev-guide-sample-application-nodejs-mysql2.md)
+      - [mysql.js](/develop/dev-guide-sample-application-nodejs-mysqljs.md)
+      - [Prisma](/develop/dev-guide-sample-application-nodejs-prisma.md)
+      - [Sequelize](/develop/dev-guide-sample-application-nodejs-sequelize.md)
+      - [TypeORM](/develop/dev-guide-sample-application-nodejs-typeorm.md)
+      - [Next.js](/develop/dev-guide-sample-application-nextjs.md)
+      - [AWS Lambda](/develop/dev-guide-sample-application-aws-lambda.md)
+    - Ruby
+      - [mysql2](/develop/dev-guide-sample-application-ruby-mysql2.md)
+      - [Rails](/develop/dev-guide-sample-application-ruby-rails.md)
   - Connect to TiDB
     - [Choose Driver or ORM](/develop/dev-guide-choose-driver-or-orm.md)
     - [Connect to TiDB](/develop/dev-guide-connect-to-tidb.md)
@@ -85,8 +97,6 @@
     - Guidelines
       - [Object Naming Convention](/develop/dev-guide-object-naming-guidelines.md)
       - [SQL Development Specifications](/develop/dev-guide-sql-development-specification.md)
-    - Legacy Docs
-      - [For Django](/develop/dev-guide-outdated-for-django.md)
   - Cloud Native Development Environment
     - [Gitpod](/develop/dev-guide-playground-gitpod.md)
   - Third-Party Support
@@ -143,7 +153,7 @@
     - [Use TiUP](/upgrade-tidb-using-tiup.md)
     - [Use TiDB Operator](https://docs.pingcap.com/tidb-in-kubernetes/stable/upgrade-a-tidb-cluster)
     - [TiDB Smooth Upgrade](/smooth-upgrade-tidb.md)
-    - [TiFlash v6.2.0 Upgrade Guide](/tiflash-620-upgrade-guide.md)
+    - [TiFlash Upgrade Guide](/tiflash-upgrade-guide.md)
   - Scale
     - [Use TiUP (Recommended)](/scale-tidb-using-tiup.md)
     - [Use TiDB Operator](https://docs.pingcap.com/tidb-in-kubernetes/stable/scale-a-tidb-cluster)
@@ -189,6 +199,7 @@
   - [Monitoring Framework Overview](/tidb-monitoring-framework.md)
   - [Monitoring API](/tidb-monitoring-api.md)
   - [Deploy Monitoring Services](/deploy-monitoring-services.md)
+  - [Upgrade Monitoring Services](/upgrade-monitoring-services.md)
   - [Export Grafana Snapshots](/exporting-grafana-snapshots.md)
   - [TiDB Cluster Alert Rules](/alert-rules.md)
   - [TiFlash Alert Rules](/tiflash/tiflash-alert-rules.md)
@@ -216,12 +227,15 @@
     - [Identify Expensive Queries Using Top SQL](/dashboard/top-sql.md)
     - [Identify Expensive Queries Using Logs](/identify-expensive-queries.md)
     - [Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md)
+    - [Understanding Stale Read and safe-ts in TiKV](/troubleshoot-stale-read.md)
   - [Support Resources](/support.md)
 - Performance Tuning
   - Tuning Guide
     - [Performance Tuning Overview](/performance-tuning-overview.md)
     - [Performance Analysis and Tuning](/performance-tuning-methods.md)
     - [Performance Tuning Practices for OLTP Scenarios](/performance-tuning-practices.md)
+    - [TiFlash Performance Analysis Methods](/tiflash-performance-tuning-methods.md)
+    - [TiCDC Performance Analysis Methods](/ticdc-performance-tuning-methods.md)
     - [Latency Breakdown](/latency-breakdown.md)
     - [TiDB Best Practices on Public Cloud](/best-practices-on-public-cloud.md)
   - Configuration Tuning
@@ -270,6 +284,7 @@
         - [Wrong Index Solution](/wrong-index-solution.md)
         - [Distinct Optimization](/agg-distinct-optimization.md)
         - [Cost Model](/cost-model.md)
+        - [Runtime Filter](/runtime-filter.md)
       - [Prepared Execution Plan Cache](/sql-prepared-plan-cache.md)
       - [Non-Prepared Execution Plan Cache](/sql-non-prepared-plan-cache.md)
     - Control Execution Plans
@@ -533,9 +548,11 @@
       - Create Changefeeds
         - [Replicate Data to MySQL-compatible Databases](/ticdc/ticdc-sink-to-mysql.md)
         - [Replicate Data to Kafka](/ticdc/ticdc-sink-to-kafka.md)
+        - [Replicate Data to Pulsar](/ticdc/ticdc-sink-to-pulsar.md)
         - [Replicate Data to Storage Services](/ticdc/ticdc-sink-to-cloud-storage.md)
       - [Manage Changefeeds](/ticdc/ticdc-manage-changefeed.md)
       - [Log Filter](/ticdc/ticdc-filter.md)
+      - [DDL Replication](/ticdc/ticdc-ddl.md)
       - [Bidirectional Replication](/ticdc/ticdc-bidirectional-replication.md)
       - [Data Integrity Validation for Single-Row Data](/ticdc/ticdc-integrity-check.md)
     - Monitor and Alert
@@ -750,6 +767,7 @@
       - [`LOCK TABLES` and `UNLOCK TABLES`](/sql-statements/sql-statement-lock-tables-and-unlock-tables.md)
       - [`MODIFY COLUMN`](/sql-statements/sql-statement-modify-column.md)
       - [`PREPARE`](/sql-statements/sql-statement-prepare.md)
+      - [`QUERY WATCH`](/sql-statements/sql-statement-query-watch.md)
       - [`RECOVER TABLE`](/sql-statements/sql-statement-recover-table.md)
       - [`RENAME USER`](/sql-statements/sql-statement-rename-user.md)
       - [`RENAME INDEX`](/sql-statements/sql-statement-rename-index.md)
@@ -845,6 +863,7 @@
       - [Information Functions](/functions-and-operators/information-functions.md)
       - [JSON Functions](/functions-and-operators/json-functions.md)
       - [Aggregate (GROUP BY) Functions](/functions-and-operators/aggregate-group-by-functions.md)
+      - [GROUP BY Modifiers](/functions-and-operators/group-by-modifier.md)
       - [Window Functions](/functions-and-operators/window-functions.md)
       - [Miscellaneous Functions](/functions-and-operators/miscellaneous-functions.md)
       - [Precision Math](/functions-and-operators/precision-math.md)
@@ -877,6 +896,7 @@
       - INFORMATION_SCHEMA
         - [Overview](/information-schema/information-schema.md)
         - [`ANALYZE_STATUS`](/information-schema/information-schema-analyze-status.md)
+        - [`CHECK_CONSTRAINTS`](/information-schema/information-schema-check-constraints.md)
         - [`CLIENT_ERRORS_SUMMARY_BY_HOST`](/information-schema/client-errors-summary-by-host.md)
         - [`CLIENT_ERRORS_SUMMARY_BY_USER`](/information-schema/client-errors-summary-by-user.md)
         - [`CLIENT_ERRORS_SUMMARY_GLOBAL`](/information-schema/client-errors-summary-global.md)
@@ -907,6 +927,7 @@
         - [`PROCESSLIST`](/information-schema/information-schema-processlist.md)
         - [`REFERENTIAL_CONSTRAINTS`](/information-schema/information-schema-referential-constraints.md)
         - [`RESOURCE_GROUPS`](/information-schema/information-schema-resource-groups.md)
+        - [`RUNAWAY_WATCHES`](/information-schema/information-schema-runaway-watches.md)
         - [`SCHEMATA`](/information-schema/information-schema-schemata.md)
         - [`SEQUENCES`](/information-schema/information-schema-sequences.md)
         - [`SESSION_VARIABLES`](/information-schema/information-schema-session-variables.md)
@@ -931,6 +952,9 @@
         - [`VARIABLES_INFO`](/information-schema/information-schema-variables-info.md)
         - [`VIEWS`](/information-schema/information-schema-views.md)
       - [`METRICS_SCHEMA`](/metrics-schema.md)
+      - PERFORMANCE_SCHEMA
+        - [Overview](/performance-schema/performance-schema.md)
+        - [`SESSION_CONNECT_ATTRS`](/performance-schema/performance-schema-session-connect-attrs.md)
     - [Metadata Lock](/metadata-lock.md)
   - UI
     - TiDB Dashboard
@@ -965,11 +989,12 @@
         - [Configure SSO](/dashboard/dashboard-session-sso.md)
       - [FAQ](/dashboard/dashboard-faq.md)
   - [Telemetry](/telemetry.md)
-  - [Errors Codes](/error-codes.md)
+  - [Error Codes](/error-codes.md)
   - [Table Filter](/table-filter.md)
   - [Schedule Replicas by Topology Labels](/schedule-replicas-by-topology-labels.md)
   - Internal Components
     - [TiDB Backend Task Distributed Execution Framework](/tidb-distributed-execution-framework.md)
+    - [TiDB Global Sort](/tidb-global-sort.md)
 - FAQs
   - [FAQ Summary](/faq/faq-overview.md)
   - [TiDB FAQs](/faq/tidb-faq.md)
@@ -987,15 +1012,22 @@
   - [Release Timeline](/releases/release-timeline.md)
   - [TiDB Versioning](/releases/versioning.md)
   - [TiDB Installation Packages](/binary-package.md)
+  - v7.4
+    - [7.4.0-DMR](/releases/release-7.4.0.md)
+  - v7.3
+    - [7.3.0-DMR](/releases/release-7.3.0.md)
   - v7.2
     - [7.2.0-DMR](/releases/release-7.2.0.md)
   - v7.1
+    - [7.1.1](/releases/release-7.1.1.md)
     - [7.1.0](/releases/release-7.1.0.md)
   - v7.0
     - [7.0.0-DMR](/releases/release-7.0.0.md)
   - v6.6
     - [6.6.0-DMR](/releases/release-6.6.0.md)
   - v6.5
+    - [6.5.5](/releases/release-6.5.5.md)
+    - [6.5.4](/releases/release-6.5.4.md)
     - [6.5.3](/releases/release-6.5.3.md)
     - [6.5.2](/releases/release-6.5.2.md)
     - [6.5.1](/releases/release-6.5.1.md)

markdown-pages/en/tidb/master/releases/release-7.4.0.md

@@ -5,7 +5,7 @@ summary: Learn about the new features, compatibility changes, improvements, and
 
 # TiDB 7.4.0 Release Notes
 
-Release date: xx xx, 2023
+Release date: October 12, 2023
 
 TiDB version: 7.4.0
 
@@ -34,7 +34,7 @@ Quick access: [Quick start](https://docs.pingcap.com/tidb/v7.4/quick-start-with-
   </tr>
   <tr>
     <td><a href="https://docs.pingcap.com/tidb/v7.4/tidb-resource-control#manage-background-tasks" target="_blank">Resource control</a> for background tasks (experimental)</td>
-    <td>In v7.1.0, the <a href="https://docs.pingcap.com/tidb/v7.4/tidb-resource-control#use-resource-control-to-achieve-resource-isolation" target="_blank">Resource Control</a> feature was introduced to mitigate resource and storage access interference between workloads. TiDB v7.4.0 applies this control to background tasks as well. In v7.4.0, Resource Control now identifies and manages the resources produced by background tasks, such as auto-analyze, Backup & Restore, load data, and online DDL. This will eventually apply to all background tasks.</td>
+    <td>In v7.1.0, the <a href="https://docs.pingcap.com/tidb/v7.4/tidb-resource-control#use-resource-control-to-achieve-resource-isolation" target="_blank">Resource Control</a> feature was introduced to mitigate resource and storage access interference between workloads. TiDB v7.4.0 applies this control to background tasks as well. In v7.4.0, Resource Control now identifies and manages the resources produced by background tasks, such as auto-analyze, Backup & Restore, bulk load with TiDB Lightning, and online DDL. This will eventually apply to all background tasks.</td>
   </tr>
   <tr>
     <td>TiFlash supports <a href="https://docs.pingcap.com/tidb/v7.4/tiflash-disaggregated-and-s3" target="_blank">storage-computing separation and S3</a> (GA) </td>
@@ -59,7 +59,7 @@ Quick access: [Quick start](https://docs.pingcap.com/tidb/v7.4/quick-start-with-
   </tr>
   <tr>
     <td>MySQL 8.0 compatibility: support<a href="https://docs.pingcap.com/tidb/v7.4/character-set-and-collation#character-sets-and-collations-supported-by-tidb" target="_blank"> collation <code>utf8mb4_0900_ai_ci</code></a></td>
-    <td>One notable change in MySQL 8.0 is that the default character set is utf8mb4, and the default collation of utf8mb4 is <code>utf8mb4_0900_ai_ci</code>. TiDB v7.4.0 enhances the compatibility with MySQL 8.0. If you create a database in MySQL 8.0 with the default collation, you can smoothly migrate or replicate it to TiDB.</td>
+    <td>One notable change in MySQL 8.0 is that the default character set is utf8mb4, and the default collation of utf8mb4 is <code>utf8mb4_0900_ai_ci</code>. TiDB v7.4.0 adding support for this enhances compatibility with MySQL 8.0 so that migrations and replications from MySQL 8.0 databases with the default collation are now much smoother.</td>
   </tr>
   <tr>
     <td>DB Operations and Observability</td>
@@ -185,7 +185,7 @@ Quick access: [Quick start](https://docs.pingcap.com/tidb/v7.4/quick-start-with-
 
     TiDB supports the following types of background tasks:
 
-    - `lightning`: perform import tasks using [TiDB Lightning](/tidb-lightning/tidb-lightning-overview.md). Both physical and logical import modes of TiDB Lightning are supported.
+    - `lightning`: perform import tasks using [TiDB Lightning](/tidb-lightning/tidb-lightning-overview.md) or [`IMPORT INTO`](/sql-statements/sql-statement-import-into.md).
     - `br`: perform backup and restore tasks using [BR](/br/backup-and-restore-overview.md). PITR is not supported.
     - `ddl`: control the resource usage during the batch data write back phase of Reorg DDLs.
     - `stats`: the [collect statistics](/statistics.md#collect-statistics) tasks that are manually executed or automatically triggered by TiDB.