Booster 又双叒叕发布了新的版本—— v4.7.0，本次更新内容如下：

  1. Fix issue #304: ScheduledThreadPoolExecutor transform bug by @lpw14 in https://github.com/didi/booster/pull/305
  2. Fix improper task dependencies of compression tool installation, such as installPngquant and installCwebp
  3. Add booster-task-graph for task graph visualization
  4. Add DotGraph.visualize(...) for graph visualization

参见：API Rereference
参见：深入理解 Booster