Historical errata for Exceptional Ruby

Missing ‘r’ from word ‘require’ on first line of Listing 41: The Cond gem.
“equire ’cond/dsl’”

Timeour::Error is not part … -> Timeout::Error is not part …

“Where should you put bulkheads? In find it’s a good idea to put bulkheads between your app and:”

Should be I find

Missing apostrophe:
“It is the callers responsibility to ensure”
should be
“It is the caller’s responsibility to ensure” (or “callers’”).

Wording is confusing. Instead of:
“(Your object_id values will be different, of course.)”
I’d recommend:
“(Of course, your two matching object_id values will be different from mine.)”

The point of the example is that the values displayed will be the same, so it’s important to clarify what will be different from what.