Comment 6 for bug 1043853

For the record: "Ign" really states for "Ignore", the mentioned file couldn't be downloaded, but APT used an alternative to satisfy its needs, so it ignores the failure (Ubuntu doesn't support InRelease yet, just plans to do it while Debian has it for some branches already, so APT uses the "old" files Release and Release.gpg instead if InRelease isn't available).

If a file wasn't modified it says "Hit", if it downloaded "Get" is in front and if a file couldn't be downloaded and nothing can be done about that "Err" which stands for "Error" and is accompanied by an error message and a non-zero exit-code.

Closed as the bugreporter confirmed that this is not a bug but a misunderstanding.