They always say that as they can never know what all mods are doing and they don't want issues cropping up from incompatible mods being mistaken for a problem with the update. That said, as this is not a major update there shouldn't be many mods affected by the change (if any). What you should look out for is any mods that fixes the same issue as the patch addresses, in these cases you should look what the author of that mod says about the patch.
Played since The Sims 1 and now makes mods for The Sims 4: Gender Less - Gender neutral pronouns and titles Hidden Highlight - Removes the white outline Unlocked CAS Parts - Unlocks hidden CAS items
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Gender Less - Gender neutral pronouns and titles
Hidden Highlight - Removes the white outline
Unlocked CAS Parts - Unlocks hidden CAS items