The phrase "final revision" refers to the last and most important edit or correction made to something, like a piece of writing or a project. It is the last chance to make improvements before considering it complete. Full definition
I then signed second book idea to the publisher a am doing final revisions now. (alanrinzler.com)
Once final revisions have been completed, the additional documents will be created, reviewed by me, and then sent to you. (summitviewcareercoaching.com)
I am near final revision of my WIP.The work is an approximately 100,000 word novel of mystery suspense («Nerve Damage» first page reviewed on TKZ). (killzoneblog.com)