Where to find Ubuntu change logs (esp the kernel)

Where can I find change logs for various parts of Ubuntu, especially the kernel? I've looked, and I can't find them.

A Software Update dialog just popped up, with the 2nd "linux image" update in 2 days, and the only detail is something like "Bump ABI 5.0.0-20". What does that mean? I'd like to know what changed from -19.

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1 Answer

Try apt changelog

apt changelog linux-headers-$(uname -r)

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