Release pd-server v4.0.3 · tikv/pd

Improvements

Fix the issue that creating TSO stream might be blocked for a while if the server crashes #2648
Fix the issue that getSchedulers might cause a data race #2638
Fix the issue that deleting the scheduler might cause deadlocks #2637
Fix the bug that placement rules are not considered when balance-leader-scheduler is enabled #2636
Fix the issue that sometimes service safepoint cannot be set properly, which might make BR and dumpling fail #2635
Fix the issue that the target store in hot region scheduler is incorrectly selected #2627
Fix the issue that the TSO request might take too long when PD leader is switched #2622
Fix the issue of stale scheduler after leader change #2608
Fix the issue that sometimes replicas of a Region cannot be adjusted to the best location when placement rules are enabled #2605
Fix the issue that the deployment path of the store is not updated according to the change of deployment directory #2600
Prevent store limit from changing to zero #2588

Display detailed TiDB Dashboard version information #679
Show browser compatibility notice for unsupported browsers or outdated browsers #654
Support searching in the SQL Statements page #658
Improve the Key Visualizer bucket merge for cold logical ranges #674
Rename the configuration item of disable-telemetry to enable-telemetry for consistency #684
Show the progress bar when switching pages #661
Ensure that the slow log search now follows the same behavior as log search when there are space separators #682
Fix the TiDB connection error when TiDB is scaled out #689
Fix the issue that TiFlash instances are not displayed in the log searching page #680
Fix the issue of metric selection reset after refreshing the overview page #663
Fix a connection issue in some TLS scenarios #660
Fix the issue that the language dropdown box is not displayed correctly in some cases #677