Packages blocking each other - strange case with DataFrames and PlotlyJS

On a fresh 1.12.7 install, I am seeing this: If I add DataFrames first and then PlotlyJS, I get DataFrames 1.8.2 and PlotlyJS 0.15.0 (which is not up-to-date) If I add PlotlyJS and then DataFrames, I get PlotlyJS 0.18.18 and DataFrames 1.8.2, both up-to-date My understanding is that DataFrames adds OrderedCollections v2.0.1, while the most recent PlotlyJS wants OrderedCollections v1.8.2. I (sort of) understand that incompatibilities can arise, after reading some documentation and this blog po...