what is the difference between builds with a "d" at the end of their archive name and those without a "d"?

[FredThompsonII]

Half of the MeshLab-2025.07 builds have filenames that start with "MeshLab2025.07", the other half start with "MeshLab2025.07d"

The executables are dated just a few seconds apart.

I don't see anything here or on https://www.meshlab.net/ that explains what the "d" represents.

What is the difference?

[alemuntoni]

See #1449 (comment)

In the website it was explained for the 2020.12 release (but in the website the "d" versions are not listed at all).
I'll add a snippet in the release page.