Venting about changed 0603 footprint

Layout Footprints
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Hi, I’m updating an old board that I had done with KiCad 4 or 5 and fabricated with a few issues I now fixed. I got DRC violations that my footprints doesn’t match the library ones in KiCad 7. I’m mostly just intrigued and want to make an informed decision if I should keep or change them all up for this next revision.

Just to show what I mean super clear, so these are the violations warnings:

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image1266×336 56.4 KB

I figured I wanted to update them all to keep this board up-to-date with KiCad std lib:

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image1314×628 67.5 KB

and here is the change on the board:

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image800×310 16.5 KB

The right one being the new one is a lot rounder than the old one. I hadn’t really noticed this change before to the std lib.The roundness helps with pad-tear?

I guess I should dig into change logs, but this could be a really old change so figured I could ask here, maybe common knowledge?

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I’ve read that the rounded pads have a benefit in letting the solder flow more evenly onto the pad when soldering. The sharp corners can sometimes be problematic.

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This one came in around V6.
The reduced spacing caused me a lot of changes where I had used the resistor to jump tracks

Rounded corners also reduce solder whisker formation

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I think it’s from more closely following a proposed IPC standard (draft info here & here).

Apparently, “trying to find the rationale” is just code for venting. Maybe close this thread.

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