v0.5.5

#18488 made the --debug-port argument to flutter trace required, because the previous behaviour was unreliable and caused flaky tests.

v0.5.2

#18096 changed the rendering of the character counter in text fields to more closely match the Material design specifications.

Changes in v0.5.1 (since v0.3.2) - beta 5

v0.5.0

#17661 changed the layout and size of ListTile to better conform to the latest Material design specs.

#17620 slightly reduces the default dimensions of Checkbox, Radio, and Switch to better conform to the latest Material design specs.