Version 0.18.42 released

• Fixed a crash when holding a blueprint book.
  
• Fixed that blueprint book in an item form didn't have mod-persistent icons.
  
• Don't drag map when in zoomed in map mode and building blueprints.
  
• Don't place map tags when building blueprints.
  
• Fixed crash in rendering due to game state being modified by buildability checks for drawing blueprint placement visualization on chunks in fog-of-war when zoomed-to-world.
  

You can get experimental releases by selecting the '0.18.x' beta branch under Factorio's properties in Steam.