@raspin We did not make any changes that require the packages to be updated, hence there is no repository in update 4. If you have applied update 3, then you can directly install update 4 without any repository however, if it is update 2, then you have to download the packages for update 3, and then only you can apply update 4.
We have not refreshed the installers in this update.
I hope this answers your question.
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