Map reset & different worlds

[CockyBastard]

I would like to know a bit more about the world resets.

I (google & forum) searched these:
Haven & hearth stop map reset
Haven & hearth no map reset
Haven & hearth why map reset
Haven & hearth world map reset differences
Haven & hearth worlds
Haven & hearth stop reset "world 1" < 2, 3, 4... >
haven & hearth January 11, 2011 - World 3 ends
haven & hearth October 25, 2011 World 6 ends
et ce tera but haven't been able to find any relevant information in the announcement posts (just "yay reset" or "dolt!")

What I have learned is that when the world/map is reset; the environment is changed (for variety), and some updates to the game are added.
I also believe there is a bundle of abandoned junk littering the world.
Also some times not everything is reset, I gather this partial reset & the resets are part of the economic experiment that is an ideal behind this game?
Apparently a vast portion of the world has been claimed, and resources have run out?

World 2: Characters not reset
World 3: Full reset, changes & some data corruption.
World 4: Reset to make curiosity system.
World 5: Many map files where corrupted (wtf is up with all the bad harddrives?)
World 6: Full reset? Bug fixes, many ruins & litter about.

Please let me know if my info is correct, and any other reset information for the other worlds that I have missed?

Edit (thanks for info)

[borka]

http://ringofbrodgar.com/wiki/Haven_and_Hearth_Wiki

at Bottom -World Dates

with that you can find the appropriate announcement threads

[HasseKebab]

World 4: reset to make curiosity system
World 5: many map files where corrupted
World 6: bug fixes

[Phaen]

Didn't w3 end because of corruption as well? I wasn't around so idk

[bmjclark]

W3 ended because of corruption as well. W6 just ended probably because it was a shit hole of nuked vaults and towns, as well as a bunch of abandoned claims. And for bug fixes and some new stuff.

[borka]

And because all that whining - and prolly also because of the changes in Paradox poltics about Salem...

[Phaen]

if they hadn't reset w6 we wouldn't be able to test out how earlygame feels with the new survival hardcaps in place

[borka]

yep Phaen that's the good point in having a new world