Shouldn't old port be deleted on upgrade?

[Peter Farsinsen]

Hi,

Just did 'port upgrade outdated' which went very well. But when I do 
'port installed' some of the old ports still seems to be installed. Is 
this the intended behavior or is my installation broken?

'port installed' outputs:
   apache2 @2.2.4_0
   apache2 @2.2.4_1 (active)
   apr @1.2.8_0
   apr @1.2.9_0 (active)
   apr-util @1.2.8_2 (active)
   curl @7.16.2_0+darwin_8 (active)
   db44 @4.4.20_1+darwin_8 (active)
   expat @2.0.1_0 (active)
   freetype @2.3.4_1
   freetype @2.3.5_0 (active)
   gettext @0.16.1_0 (active)
   glib2 @2.12.12_0 (active)
   irssi @0.8.10a_2 (active)
   jpeg @6b_1 (active)
   libiconv @1.11_4+darwin_8 (active)
   libmcrypt @2.5.8_0+darwin_8 (active)
   libpng @1.2.18_0+darwin_8 (active)
   libtool @1.5.22_0
   libtool @1.5.24_0 (active)
   libxml2 @2.6.28_1 (active)
   libxslt @1.1.20_0 (active)
   mhash @0.9.9_0+darwin_8 (active)
   mysql5 @5.0.41_0+darwin_8+server (active)
   ncurses @5.6_0+darwin_8 (active)
   ncursesw @5.6_0+darwin_8 (active)
   openssl @0.9.8e_0+darwin_8 (active)
   pcre @7.1_1+utf8 (active)
   php5 @5.2.3_0+apache2+darwin_8+macosx+mysql5+tidy (active)
   pkgconfig @0.21_0
   pkgconfig @0.22_0 (active)
   readline @5.2.001_0 (active)
   sqlite3 @3.4.0_0+darwin_8
   sqlite3 @3.4.0_1+darwin_8 (active)
   tidy @20051026_0+darwin_8 (active)
   tiff @3.8.2_0+darwin_8 (active)
   zlib @1.2.3_1 (active)

Best regards,

Peter Farsinsen