Please see the discussion in https://issues.apache.org/jira/browse/HBASE-13126
And final work is done in https://issues.apache.org/jira/browse/HBASE-26081 https://github.com/apache/hbase/pull/3478 The original HBaseTestingUtility has been renamed to HBaseTestingUtil, and MiniHBaseCluster has been renamed to SingleProcessHBaseCluster. Now they are not expected to be used by end users any more. We marked it as IA.LimitedPrivate("Phoenix"), as maybe the Phoenix project may still need to test something internal to HBase. Anyway, we encourage every downstream projects(including Phoenix) to try to make use of the new TestingHBaseCluster introduced in https://issues.apache.org/jira/browse/HBASE-26080 We can keep improving it if the current API set is not enough. ==== 简略的中文版通知，非直译 ==== HBaseTestingUtility 已经在 3.0.0 中被标记为 Deprecated，请所有用户尽量尝试使用在 HBASE-26080 中引入的 TestingHBaseCluster。有任何需求请随时反馈，我们会持续优化。
