enables you to scale out or scale in the computing or storage capacity separately. The computing layer supports a maximum of 512 nodes, each node supports a maximum of 1,000 concurrencies, and the maximum Experimental Experimental Experimental 2.3.9 Security Security 5.4 5.3 5.2 5.1 5.0 4.0 Transparent layer security (TLS) Y Y Y Y Y Y Encryption at rest (TDE) Y Y Y Y Y Y Role-based authentication (RBAC) 0.0:3390 # The Floating IP address and �→ listening port. mode tcp # HAProxy uses layer 4, the transport �→ layer. balance roundrobin # The server with the fewest �→ connections receives the connection

enables you to scale out or scale in the computing or storage capacity separately. The computing layer supports a maximum of 512 nodes, each node supports a maximum of 1,000 concurrencies, and the maximum during the upgrade process #5698 @HunDunDM • TiFlash • Fix the issue that column files in the delta layer cannot be compacted after restart- ing TiFlash #6159 @lidezhu • Fix the issue that TiFlash File Open statistics E N N N N N N N N 2.3.9 Security Security 6.5 6.1 5.4 5.3 5.2 5.1 5.0 4.0 Transparent layer security (TLS) Y Y Y Y Y Y Y Y Encryption at rest (TDE) Y Y Y Y Y Y Y Y Role-based authentication

storage architecture, enabling easy scaling of computing or storage capacity separately. The computing layer supports a maximum of 512 nodes, each node sup- ports a maximum of 1,000 concurrencies, and the maximum N N N N N N N 2.3.9 Security Security 7.6 7.5 7.1 6.5 6.1 5.4 5.3 5.2 5.1 5.0 4.0 Transparent layer security (TLS) Y Y Y Y Y Y Y Y Y Y Y Encryption at rest (TDE) Y Y Y Y Y Y Y Y Y Y Y Role-based authentication restart 6. Create and start the cluster: Edit the configuration file according to the following template, and name it as topo. �→ yaml: # # Global variables are applied to all deployments and used as

enables you to scale out or scale in the computing or storage capacity separately. The computing layer supports a maximum of 512 nodes, each node supports a maximum of 1,000 concurrencies, and the maximum Experimental Experimental N N 2.3.9 Security Security 6.1 6.0 5.4 5.3 5.2 5.1 5.0 4.0 Transparent layer security (TLS) Y Y Y Y Y Y Y Y Encryption at rest (TDE) Y Y Y Y Y Y Y Y Role-based authentication 0.0:3390 # The Floating IP address and �→ listening port. mode tcp # HAProxy uses layer 4, the transport �→ layer. balance leastconn # The server with the fewest �→ connections receives the connection

storage architecture, enabling easy scaling of computing or storage capacity separately. The computing layer supports a maximum of 512 nodes, each node sup- ports a maximum of 1,000 concurrencies, and the maximum N N N N N N N N N 2.3.9 Security Security 7.5 7.1 6.5 6.1 5.4 5.3 5.2 5.1 5.0 4.0 Transparent layer security (TLS) Y Y Y Y Y Y Y Y Y Y Encryption at rest (TDE) Y Y Y Y Y Y Y Y Y Y Role-based authentication restart 6. Create and start the cluster: Edit the configuration file according to the following template, and name it as topo. �→ yaml: 94 # # Global variables are applied to all deployments and used

storage architecture, enabling easy scaling of computing or storage capacity separately. The computing layer supports a maximum of 512 nodes, each node sup- ports a maximum of 1,000 concurrencies, and the maximum chunks #42620 @lichunzhu • Fix the issue that TiDB Dumpling might panic when --output-file- �→ template is incorrectly set #42391 @lichunzhu • TiDB Binlog • Fix the issue that an error might occur when tion E N N N N N N N N 2.3.9 Security Security 7.1 6.5 6.1 5.4 5.3 5.2 5.1 5.0 4.0 Transparent layer security (TLS) Y Y Y Y Y Y Y Y Y Encryption at rest (TDE) Y Y Y Y Y Y Y Y Y Role-based authentication

enables you to scale out or scale in the computing or storage capacity separately. The computing layer supports a maximum of 512 nodes, each node supports a maximum of 1,000 concurrencies, and the maximum showing the size of the backup and restore data when backing up and restoring data in the SQL logical layer #27247 – Improve the default collection logic of ANALYZE when tidb_analyze_version is 2, which accelerates Experimental Experimental Experimental 55 2.3.9 Security Security 5.3 5.2 5.1 5.0 4.0 Transparent layer security (TLS) Y Y Y Y Y Encryption at rest (TDE) Y Y Y Y Y Role-based authentication (RBAC) Y Y

enables you to scale out or scale in the computing or storage capacity separately. The computing layer supports a maximum of 512 nodes, each node supports a maximum of 1,000 concurrencies, and the maximum performance �→ .tcp-no �→ -delay Newly added Determines whether to enable TCP_NODELAY at the TCP layer. The default value is true, which means TCP_NODELAY is enabled. TiDB con- figuration file performance Experimental Experimental Experimental Experimental 2.3.9 Security Security 5.2 5.1 5.0 4.0 Transparent layer security (TLS) Y Y Y Y Encryption at rest (TDE) Y Y Y Y Role-based authentication (RBAC) Y Y Y Y

enables you to scale out or scale in the computing or storage capacity separately. The computing layer supports a maximum of 512 nodes, each node supports a maximum of 1,000 concurrencies, and the maximum 5.2, to improve system security, it is recommended (but not manda- tory) to encrypt the transport layer for connections from clients. TiDB provides the Auto TLS feature to automatically configure and enable of RocksDB compaction accumulates, flow control is per- formed at the TiKV scheduler layer instead of the RocksDB layer, to avoid the following issues: – Raftstore is stuck, which is caused by RocksDB write

storage architecture, enabling easy scaling of computing or storage capacity separately. The computing layer supports a maximum of 512 nodes, each node sup- ports a maximum of 1,000 concurrencies, and the maximum N N N N N 2.3.9 Security Security 8.4 8.3 8.2 8.1 7.5 7.1 6.5 6.1 5.4 5.3 5.2 5.1 Transparent layer security (TLS) Y Y Y Y Y Y Y Y Y Y Y Y Encryption at rest (TDE) Y Y Y Y Y Y Y Y Y Y Y Y Role-based restart 6. Create and start the cluster: Edit the configuration file according to the following template, and name it as topo. �→ yaml: 127 # # Global variables are applied to all deployments and used