After a long debate we decided to update our old world to 1.1.3. Even though we already started a new world, there were some users like you that would like to keep their builds in our old world. Here is how we did our update from DW20 1.1.2 to 1.1.3. It took the better part of 8-10 hours to accomplish. First off there is the crashes. This for us was because of non-liquid IDs in liquid pipes. We loaded the 1.1.2 world up and removed ALL pipes. This included BC pipes and Liquid ducts, etc. You could also remove any AE systems as these will break with the update, even though we didn't at the time (they were just gone when we updated). Also effected were ender tanks and ender chests. After these items were removed from our world we updated to 1.1.3. This allowed us to load up the world and not crash immediately. We then took the time to spawn in items to fix our setups. We did this sorta "creative" mode thing for a while till enough stuff was set back up. Then we destroyed all the spawned in extras. For us, it was the piping, electrical cables, and AE systems that were basically "gone" after the update. And the liquid error that was crashing the us at first. Like I said it took some time to fix everything, but we've been playing now like normal for a few days and everything seems fine. Well besides some weird problem with tinker's construct arrows that keep showing up in my inventory every time I go to the nether. Not sure if this has to do with the update or is some other bug though.
Sorry I can't help with direct ID ports or anything like that because that was not the option we decided to go with. Although I'm sure it can be done, the mapping is of course tricky. I just wanted to post how we were able to update our world. In the end I don't think it was worth the time invested, but some of our users are happier now. So that's a good thing I guess
