updates since last AEP reported release 1.15.215
v1.15.232

• Fixed: Glow effects were clipped improperly at any except the fullscreen cockpit mode
  v1.15.231
  
• Fixed: The shockwave effect wasn´t rendered at the proper position for all cockpit modes except the fullscreen view
  
• Improved: The shockwave effect looks better (hard to see due to its speed, but trust me, it does
  v1.15.230
  
• Fixed: The program could crash when moving from a level containing destructible lights to the next level
  v1.15.229
  
• Fixed: Transparent faces frequently were opaque at the hightest lighting setting
  v1.15.228
  
• Fixed: At the highest lighting setting, there was no light at all
  
• Fixed: Game folder detection could fail on Linux and OS X
  v1.15.227
  
• Fixed: Ambient light in front of instead of behind light sources was dimmed
  v1.15.226
  
• Fixed: Transparent walls often were rendered opaque
  v1.15.225
  
• Fixed: The change in v1.15.223 broke light calculation for ambient light contribution to faces behind light sources
  v1.15.224
  
• Fixed: The program could crash when computing lighting information
  
• Fixed: Colored transparent walls were fully transparent and white when lightmap based lighting was used
  
• Fixed: Energy sparks weren´t displayed properly on monitors (camera outputs)
  
• Fixed: Waterfall smoke wasn´t rendered properly
  v1.15.223
  
• Improved: There will be no abrupt brightness decrease between light emitting faces and their adjacent faces anymore
  v1.15.222
  
• Fixed: Some forgotten test code randomly caused weird light effects, getting worse when playing for a while
  v1.15.221
  
• Fixed: Lightmaps caused black seams at face edges
  
• Fixed: Dynamic light sources caused hard light transitions between faces
  
• Fixed: Faces adjacent to light emitting faces often were too dark
  
• Improved: Lightmaps will now be blurred which takes care of the jaggies in lightmaps quite nicely, and produces a softer shadowing effect
  v1.15.220
  
• Fixed: Some lightmap calculation flaws were removed
  
• Fixed: Dynamic lights caused flickering when multi threading was used
  
• Fixed: D2X-XL ignored the max threads settings from d2x.ini if the hardware supported more threads than D2X-XL was allowed there to use
  v1.15.219
  
• Fixed: Light data precalculation could loop forever
  
• Fixed: The distance calculation (via DACS segment path finding) for lightmaps didn´t work correctly, often causing lights to cast ambient light where they shouldn´t have
  
• Improved: Lightmap calculation will be (potentially) faster and more precise
  
• New: Added a render menu option for adjusting lightmap calculation precision (only available in expert mode)
  v1.15.218
  
• Fixed: The new lighting code didn´t work right for dynamic lights
  
• Fixed: Objects weren´t lit by player ship headlights anymore
  v1.15.217
  
• Fixed: Depending on player position and view direction, the main view could occasionally be pitch black
  
• Changed: Lightmap quality has been bumped up one notch, e.g. each setting now produces lightmaps which are four times as detailled as before
  
• Changed: Bullet time and slow motion will now be turned off when the reactor has been destroyed and will not be available during the mine destruction phase
  
• Improved: Lightmap calculation is more precise (the price of which is that it is also quite a bit slower)
  v1.15.216
  
• Fixed: Glow effects often were badly clipped at standard glow setting

For the complete changelog, please visit the official site