I dont know what was in 1.0, so cant include that, but I can start with 1.1.
Each time a patch is downloaded by steam, if someone can post a list of what gets added or updated, I will keep the OP up to date.
3.2 -> 3.3
List of changed / added files
3.1a -> 3.2
List of changed/added files
3.1 -> 3.1a
List of changed/added files
3.0 -> 3.1
List of changed/added files
2.5.3 -> 3.0
List of changed/added files
2.5.2 -> 2.5.3
List of changed/added files
2.5.1 -> 2.5.2
List of changed/added files

2.5 -> 2.5.1
Reuses 03.cat/dat.
Added/changed:
addon\scripts\!lib.mtc.buysell.pck
addon\scripts\!patch.rrf.2.51.pck
addon\scripts\plugin.rrf.fire.missile.pck
addon\scripts\plugin.rrf.monitor.4.sig.handler.pck
addon\scripts\plugin.rrf.repair.restock.pck
addon\scripts\plugin.rrf.volley.pck
Added/changed in 03.cat:
addon\director\2.022 Albion Prelude Terran Plot.pck
addon\t\0001-L033.pck
addon\t\0001-L039.pck
addon\t\0001-L049.pck
addon\types\TDocks.pck
L\*.obj
The NoSteam.exe can still be used.
2.1 -> 2.5
Reuses cat/dat number 3.
Changed:
addon\03.cat/dat
addon\scripts\!fight.war.attackplayer.pck
addon\scripts\!fight.war.protectsector.pck
addon\scripts\!move.jumptogate.nearest.pck
addon\scripts\!ship.cmd.freightransfer.pre.pck
addon\scripts\plugin.rrf.count.enemies.pck
addon\scripts\plugin.rrf.fight.attack.wing.pck
addon\scripts\plugin.rrf.fire.missile.pck
addon\scripts\plugin.rrf.jump.global.pck
addon\scripts\plugin.rrf.m8.logic.pck
addon\scripts\plugin.rrf.monitor.4.signal.pck
addon\scripts\plugin.rrf.patrol.pck
addon\scripts\plugin.rrf.repair.restock.pck
addon\scripts\plugin.rrf.stock.m8.pck
addon\scripts\plugin.rrf.ufo.pickup1.pck
addon\x3files.xml
addon\t\0002*.pck
addon\Documents\*.txt
Added/changed in 03.cat:
addon\director\2.022 Albion Prelude Terran Plot.pck
addon\director\3.02 Plot Missions.pck
addon\director\mdfiles.pck
addon\director\start.pck
addon\director\U.16 Follow Anxiety MaxRange.pck
addon\director\images\AP_Earth_Torus.tga
addon\maps\WareTemplate.pck
addon\t\0001-L*.pck
addon\t\0003-L086.pck
addon\t\0003-L088.pck
addon\t\conversations.pck
addon\types\gamestarts.pck
addon\types\hq.pck
addon\types\Jobs.pck
addon\types\TDocks.pck
addon\types\TShips.pck (Fixed Marlin cargo bay size only)
L\x3config.obj
L\x3galedit.obj
L\x3intro.obj
L\x3story.obj
objects\stations\Cadius\USC\Headquarters_Scene.pbd
objects\stations\Cadius\USC\Headquarters\bottom.pbb
objects\stations\Cadius\USC\Headquarters\docking_moor_bottom.pbb
objects\stations\Cadius\USC\Headquarters\docking_moor_top.pbb
objects\stations\Cadius\USC\Headquarters\solar_panels.pbb
objects\stations\Cadius\USC\Headquarters\top.pbb
The X3AP-NoSteam.exe can still be used.
V2.0a -> V2.1
Reuses cat/dat number 03.
Changes:
addon\scripts\
- plugin.rrf.count.enemies.pck
- plugin.rrf.find.ship.pck
- plugin.rrf.jump.attack.pck
- plugin.rrf.jump.global.pck
- plugin.rrf.monitor.4.signal.pck
- plugin.rrf.sig.killed.pck
addon\t\
- 0002-L0xx.pck
Added/changed in 03.cat:
- addon\director\2.019 Albion Prelude Plot.pck
- addon\director\2.021 Albion Prelude HQ Plot.pck
- addon\director\3.02 Plot Missions.pck
- addon\t\0001-L034.pck
- dds\jsdd_ad.pck
- L\*.obj
The X3AP-NoSteam.exe can still be used.
V2.0 -> V2.0a (Just a minor patch)
Distributed as 03
- Minor text fixes:
Corrected mistakes in 0001-L049.xml (German) / 0001-L039.xml (Italian)
350035-1102604 added in all languages
Script engine: skip if not --> do if
- adds a new cat/dat pair (number 03) with
L\x3galedit.obj
L\x3story.obj
addon\t\0001-L048.pck
Possible Changes to 02 :
If you load Chinese as language in X3AP, then the 02.cat/dat will be updated with Chinese text, fonts and menu image files. (language id 86 is simplified Chinese, language id 88 is traditional Chinese) Also, the files 0002-L086.pck and 0002-L088.pck will be added to the t-folder.
v1.1 to v2
Added to types : cutdata.txt, dummies.txt, globals.txt, jobs.txt, tcockpits.txt, TwareT.txt.
Updated in types : Tships.txt, warelists.txt.
In t : 0001 updated (all versions). conversations.xml added.
In maps : waretemplate.xml and x3_universe.xml added.
As in, 1.1 doesnt have a maps directory, v2 does with those 2 files in there.
In director :
Added 0.16, 0.22, 0.34, 0.35, 2.020, 2.021, 2.129, 2.133, 2.135, 3.01, mdfiles.txt, OBJ05 Provide Station Ware.xml
Updated : 0.4, 2.019, 3.02, 3.08
v1.1 has an L\true directory. v2 does not. So they removed x3config.obj, x3galedit.obj, x3intro.obj, x3story.obj, and some loadscrBot-L??? jpgs
Edit: I added links to the list of change/added files of the latest updates. I also updated the title of this thread. X2-Illuminatus