release notes for 1.65.0 did not mention moving Error trait into core

[tspiteri]

#99917 moved Error into core for 1.65.0, but it was not mentioned in the release notes.

It also is confusing that the API doc for core::error::Error says it is since 1.0.0, when it was only in std since 1.0.0.

[CryZe]

It's not stable yet, but yeah that definitely is confusingly documented.

[tspiteri]

Oh, in the API documentation core::error is marked as experimental but core::error::Error is not. Trying to use core::error::Error does generate an error though, so it's just the docs.

[dtolnay]

Changes that are only observable to nightly are almost never covered in release notes. Something is featured in release notes when it is stabilized.

Regarding "Since" version, I don't think there is any mechanism to render a different "Since" version for the same struct in two places.