this post was submitted on 01 Feb 2024
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When you download a new docker image version, you actually download its full size and not just an update. Not sure was that even your question tho
Really? I thought it only took the bits that changed.
Depends which bit changed. Docker images are layers built on top of each other; if they only changed the final layer then all the others are the same as the ones you've already downloaded, if they changed the base image then everything is considered new and needs to be downloaded again.