Drafts only as the default is the right call, and I'd keep it there longer than most people expect. A model inventing a feature is the obvious risk. The quieter one is turning "faster for large files" into "faster", which is worse because it looks plausible. I'd add one step to your prompt: pass only the user-facing bullets for this tag, not the whole CHANGELOG.md, so older items can't leak into the posts. A short clip of the change also does more for a release post than a fourth rewording of the same text. Which network gets you the most replies to release posts?