base exe patch moves the per-chapter coin and flag arrays into free .data space (128 entries), so every testlevel chapter is safe (revision 2, caches rebuilt once); new projects start on a free chapter from 32, manual shows number ranges, texture swatch caches follow texture edits, stray levelbau.md.orig removed

CHANGELOG.md

@@ -36,6 +36,8 @@ There are two downloads: **full** (launcher + level editor) and **launcher** (mo
   - **New levels and the Alligator Arena only use TestLevel chapters 1 and 32–49.** On other
     chapters the game stored the level's coins over your progress and other game data (chapter 9
     broke the world map). Levels and settings on old chapters move to a free one automatically.
+    The game itself is fixed too: picking an empty TestLevel chapter on the world map (or in
+    Boot to level) no longer damages your progress.
   - The level tally shows the real coin and secret totals of new levels, the Test World and the
     arena instead of the Village's "55".
 - **Save games**