A very small Errata indeed.
Reference – Profiles, Ranged Weapons
Replace the Shadow Weaver's profile with the following.
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" Blanked out for GWs IP protecton" (humour people even if it is bad humour)
That is it nothing else. Maybe GW has gotten better at their codexes, or they have not had enough feedback from players looking for loopholes, or finding them and rules errors from playing the new codex yet.