v2026.4.2

• kvpp
  • Add support for 64-bit pointers in KV1Binary
  • Fix TIME attributes crashing DMXAttribute::getValueString
  • Replace all instances of std::to_string with std::format
• sourcepp
  • Set RPATH to $ORIGIN when compiling standalone binaries
  • Bump BufferStream dependency, BufferStream::swap_endian (used extensively for big-endian platforms) is no longer UB
  • Create security policy
• vpkpp
  • Allow loading Vampire PaK files as standalone archives if not using standard filesystem layout (must still be named packNN.vpk)
  • Clean GMA entry paths when parsing
• vtfpp
  • Add ability to clamp or resize input images in VTF::create and VTF::setImage
  • Use endian-aware types for ImagePixel (based on work by @partyvan!)
  • Implement ImagePixel::transform and ImagePixel::transformInPlace
  • ImagePixel::invertGreenChannelForImageData and ImagePixel::gammaCorrectImageData now modify input image data in-place
  • VTF raw image data accessors now return mutable spans
  • Add support for compressed HDR formats (SOURCEPP_BGRA8888_HDR, SOURCEPP_RGBA16161616_HDR, SOURCEPP_CONSOLE_RGBA16161616_HDR)
    • Named as such since they do not actually have a unique format in the image formats enum in Source engine, and must be detected based on filename
  • Fix console platform cubemap face count formula (never includes a spheremap)
  • Fix cubemap face count recalculation when switching between PC and console formats
  • Fix header-only parse recording some resources for XBOX platform
  • Add mip, padding variants of VTF::getFallbackWidth/Height to match VTF::getWidth/Height
  • Fix ATI2N red/green channels being swapped and blue channel calculation
  • Stop autoapplying NO_LOD flag when changing mip count (but do set it automatically when creating a VTF with no mips)
  • Fix being unable to convert directly between Titanfall 2's BC6H and Strata's BC6H (but you still shouldn't do it)
  • Add Hable Filmic tonemap function to ImageConvert
• lang:c
  • Fix one usage of C++ std slipping into a C header (thanks @sheepy676!)