What happened to BUG: and changelog?

[Albert Astals Cid]

Waldo said:

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BUG: <bugnumber>
        Marks the bug as closed by CC'ing the mail to 
<bugnumber>-done at bugs.kde.org
This keyword will also be used to automatically extract entries for the 
release changelog.

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kpdf_part.cpp revision 1.51.2.9 (new in KDE 3.3.2) has that comment

Print PS instead of Images
BUG: 92204

Why that is not in the changelog? Was it for major releases only?

Albert