Overview
In most scenarios, kernel minor version upgrade is not mandatory. The system will provide you with the latest minor version for upgrade. For an introduction to the minor version, refer to Kernel Version Updates. You can complete the Upgrade Minor Kernel Version by yourself in the console based on your business needs. Extreme Conditions
In extreme conditions such as major defects, security issues, or known potential risks, the system will notify you in advance via SMS, email, and the Message Center (the actual notification method is based on your Message Center subscription configuration). During the maintenance time of TencentDB for PostgreSQL instances, the system will automatically initiate and complete the mandatory upgrade of the database kernel minor version. Impact of Kernel Minor Version Upgrades
If the instances of the kernel version to be upgraded are associated with other instances (read-only instances), the upgrade will be performed for these instances together to ensure data replication consistency.
TencentDB for PostgreSQL version upgrade may involve data migration. The migration speed typically depends on data volume. Your business will not be affected during upgrade and will be accessible as usual.
Upon completion of minor version upgrades, instance switching will occur, which may cause momentary disconnection. You are recommended to enable the automatic reconnection feature of applications.