Im sure I uploaded my last work, not modified by l4dmaps(dot)com people, here is the last version 2.0 from September 2013 published in my blog, and here you have listed the last updates done over this version:

MAP 1.1
-Improved zombie spawn nav mesh.
-Fixed some not solid models.
-Fixed bazooka panic event zombie spawn.
-Deleted some unpickable items.
-Added secret m60 weapon!
-Added a few some new world blocks, columns, playerclips...

MAP 2.1
-Improved zombie spawn nav mesh.
-Added panic event inside theater (falling ceiling...).
-Added some manually zombie spawns.
-Added a few some new world blocks, columns, playerclips...

MAP 2.2
-Improved zombie spawn nav mesh.
-Added new zombie spawn points for the garage panic event and the car alarm.
-Added a few some new world blocks, columns, playerclips...


MAP 3.1
-Improved zombie spawn nav mesh.
-Fixed finale zombie spawn.
-Added crazy common infected spawn.
-Fixed panic event from fake saferoom.
-Fixed some not solid models.
-Deleted some physics models.
-Added a few some new world blocks, columns, playerclips...

MAP 3.2
-Need to update

MAP 3.3
-Need to update

MAP 4.1
-Improved zombie spawn nav mesh.
-Fixed finale zombie spawn.
-Modified the finale sequence.
-Added finale molotovs
-Added a few some new world blocks, columns, playerclips...
-Fixed some not solid models.
-Deleted some physics models.

MAP 4.2
-Improved zombie spawn nav mesh.
-Fixed finale zombie spawn.
-Checkpoint to next finale sequence deleted.
-Added a few some new world blocks, columns, playerclips...
-Added finale molotovs

MAP 4.3
-Improved zombie spawn nav mesh.
-Added a few some new world blocks, columns, playerclips...
-Fixed finale zombie spawn.

MAP 5.bad
-Deleted

MAP 5.good
-Deleted