Scatterpolar missing color bar

I’m trying to use a color bar with some random data but it looks like it is disabled on the scatterpolar type
I link my test here, https://codepen.io/anon/pen/KeqWzj

That got fixed in https://github.com/plotly/plotly.js/pull/2681 which will be released in 1.39.0

This is a great news can you tell me when 1.39.0 will be released?