For the main game, the patch is available at Gog.
For HoS and the changed DLCs, if you don't want to use Galaxy, you'll need to re-download the entire install files from Gog.
Based on the timestamps of the Steam updates, I believe there were updates to DLC7 and DLC10, which would be Fool's Gold and the Wolf Armour (which fits in with the changelog). I don't THINK the others have been updated, but maybe someone else can confirm? Anyway, the DLC's are small, so it may be safer to pick them all up if bandwidth isn't an issue.
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cyberpunkforever - this would also answer your question.