Warframe as a game is always changing and evolving. Two major examples that I have personally played through are the U22.12 weapon overhaul, and the U27.2 Warframe Revised update. Unfortunately for a sporadic content creator like myself, this means that my content is made redundant over time, and I don't have the time to update everything. As such, please take note of the version at the time of each review's latest update.
The Dread is an MR5 bow whose blueprint is commonly dropped from (Shadow) Stalker. It is something that you'll most likely get many blueprints of if you play a decent amount of Warframe. Despite its low MR lock, the Dread is a very solid all-round bow and will do fairly well for most content, at least by bow standards.
