58137 Change iOS device discovery from polling to long-running observation (cla: yes, platform-ios, t: xcode, tool, waiting for tree to go green)

58140 Add a backward variant of BenchCardInfiniteScroll (cla: yes, team)

58151 Error message when size has not been set in RenderBox’s performLayout should be well versed (cla: yes, framework, waiting for tree to go green)

58154 Allow null value for CheckboxListTile (cla: yes, f: material design, framework, waiting for tree to go green)

58174 Start from a clean slate when bundling Linux build (cla: yes, tool)

58175 [devicelab] less sensitivity to whitespace in flutter_performance_test (cla: yes, team)