• Add support for Redis AUTH.
  
• Add support for cc/c++ commands when they are copies of clang or gcc (fixes support on macOS when CC/CXX are undefined).
  
• Improve direct mode hash calculation (fixes direct mode under Visual Studio).
  
• Speed up direct mode for MSVC.
  
• Reduce memory footprint during housekeeping.
  
• Better handling of remote cache errors.