Well there are diffs rom RC1 to stable and it seems to work.
But a word of warning if you have many products and store views truncate the category_product index or you might wish to take a cup of coffee and go out for party all night before the upgrade has finished. But I assume no one of you would perform an upgrade on lief sites without testing. Not even from rc1 to stable.
TRUNCATE TABLE catalaog_category_product_index
Maybe, just maybe, the upgrade process would benefit if disabeling foreign keychecks when they’re not needed.
On ZDN is an interesting blog post about the dark side of auto upgrading applications and about what you should be aware of.