update MD by dispatch event pingcap/docs release-8.5

Author: github-actions

markdown-pages/en/tidb/release-8.5/releases/release-8.5.5.md

@@ -198,6 +198,8 @@ For TiDB clusters newly deployed in v8.5.4 (that is, not upgraded from versions
 
 ### Other changes
 
+* Upgrade the Go compiler version of TiDB from go1.23.6 to go1.25.5, which improves the TiDB performance. If you are a TiDB developer, upgrade your Go compiler version to ensure smooth compilation.
+
 * When performing PITR recovery on earlier TiDB versions (such as v8.5.4 or v8.1.2) using BR v8.5.5, the log recovery stage might fail and return errors.
 
     Full data backup and restore are not affected by this issue.