Later revisions of the C standard have added several new required header files to the library.

The 1993 revision added new definitions, deleted some, while leaving the message format itself unchanged.

Smith's revision added long passages rewritten "according to his inspiration".

An 1854 revision deleted several tunes and added still more.

The revisions didn't just add text but removed and rearranged passages as well.

A recent revision of the Walgreens web site has added the ability to review any product it sells.

The revisions added 66,000 jobs to the original estimates for February and March.

It is expected that these revisions will add about 25,000 jobs to the monthly data back to April 1992.

On top of all that, revisions added a further 72,000 jobs to previous months' growth.

The 2003 revision added natural gas to the scope of work.