What does the 'renewal' frequently seen in product descriptions mean has changed?

Even when labeled with the same single word 'renewal', what was actually modified varies by product. ALLENO places that changed point in a short single line at the very beginning of the description.

오비 슬릿 와이드 진 is recognizable right away with your eyes. It is a new design where the logo that was originally on the back pocket moved its spot to the front pocket^[1]. On the contrary, for the 알렌오 시그니쳐 4버튼 자켓 (바닐라 베이지), parts that are hard to pinpoint from photos alone have changed — it is a version where the fit and material were modified^[2]. The 알렌오 캐시미어 시그니쳐 코트 (Navy) is slightly different in nature. Rather than fixing something, it is a case where an additional color was added to choose from, and it is marked as a newly added color^[3].

hmmm, these single lines are closer to an indication that 'a separate previous version existed' rather than promotional copy. Since it means that even if the product shares the same name as one you saw before, what you are looking at now might not be the same item, checking whether this single line is attached before purchasing makes decisions faster.