What do these red annotations mean?

[jdesai-2]

Hello,

When I translate a Mathcad15 worksheet into a Mathcad Prime worksheet, it puts these red arrows and lines in there, which can be removed using the clear annotations command.

What do these annotations mean? I don't want to simply clear them and ignore them if they are really important, and pointing to some problem or flaw

[Fred_Kohlhepp]

They point to places and things the "translator" didn't understand or changed.

Many of them are trivial, a few of them are significant.

[VladimirN]

These red annotations indicate the differences between an existing and a converted Mathcad document.