Hi Till Essers,
we have done nothing to remove it from Maven Central (and from what I know, you cannot easily make some artifact vanish from there).
Looking at Maven Central I can see it is still there -> Central Repository: org/jboss/weld/weld-core-parent/2.4.0.Final
Maybe you are not using central but some local mirror in your company which went out of sync?
Thank you for your quick reply. Seems like our local nexus got a problem but our admin is denying and and blaming you. Funny enough, without our nexus it works...