... oh............... that's a shame...... I have to start all over again....
Thanks for the reply
All saves made at and after 0.40.03 are compatible with the later versions. Editing and DFhacking may be needed to add in new items and raw-related features such as stepladders, adventure mode reactions, books, scrolls, parchment, etc, to varying degrees. These can probably be all added in by adding in all the new raws and using the devel/inject-raws command, so all these saves can be updated to DF2017 and this will continue until at least the next large release (because you'd have a world without a starting myth or magic, unless the game auto-generates that from the stored seeds on load - which wouldn't be so much of a problem because it sets the background and doesn't require altering any other part of worldgen).
Note that it will take time for new locations like libraries, maybe kobold caves, and museums to appear in play because civilisations and entities have to actually build them after the fact.
Wait, so for the new versions if we copy our old 44.02 worlds into 44.05 will they have the proper bugfixes and not be affected negatively?
If you are not using mods, you can copy over the raws for the latest version and that will bring your game mostly up to date. There have been raw changes since 0.44.01 that are more minor (they edit reactions to fix hotkeys) but you still need to check those.
If you use the latest version of DFhack (best wait until DFhack is updated to 0.44.05) you can update your raws using the devel/inject-raws command. You won't be able to get pedestals and display cases until you do this, but after you do, the world is effectively completely up to date for DF2017 (and you can build pedestals and display cases).
You'd need to update the raws and then load the game. Without unpausing, type the following into the DFhack command line:
devel/inject-raws tool ITEM_TOOL_PEDESTAL tool ITEM_TOOL_DISPLAY_CASE reaction "MAKE WOODEN DISPLAY CASE"
BACK UP YOUR SAVE BEFORE DOING THISYou then immediately save without unpausing, and when you load up if it loads fine you should be able to make and use the new items.
Once up to date the world and civilisations within it will start to use things brought in with DF2017, but as stated before it might take some time to pass.
With regards to the first question:You will be able to immediately launch invasions, but may have difficulty claiming artefacts. In the worlds I have updated, a lot of artefacts say "location unknown", and it seems if items are held by an individual and not stored in a fort storeroom they cannot be claimed. But you can still launch raids, yes. If other artefacts are made, you will probably have an easier time getting them.