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Hey there , u can use 1 of these websites https://imgsafe.org/ or http://www.steemimg.com/ i give you also a tutorial for imgsafe https://steemit.com/steem/@billbutler/adding-images-to-your-steem-posts

yes, you have to add links to an exterior site first still, and then copy that link and paste it into your text on here

It will be changed, and that is confirmed, but not for awhile.

Search on here - how to upload images like your other comments there showed too