Clasp v2.7.0

Version 2.7.0 (LLVM15-19) 2025-01-21

Added

• Package lock support, based on SBCL's. Currently ignores local
  bindings. Thanks @bumblingbats.
• Add support for 80-bit and 128-bit LONG-FLOAT. Extended precision
  LONG-FLOAT is available on amd64 and non-Apple arm64 platforms. It
  is automatically detected and enabled.
• LLVM19 support.
• Interrupts have now been organized into a coherent interface.
  Clasp will signal conditions of type MP:INTERRUPT at opportune
  times, and these conditions can be handled like any others.
• Extensions to Clasp and CANDO can now be built against an installed
  Clasp implementation and dynamically loaded. For an example see
  clasp-hello-world.

Changed

• Floating point exceptions FE_INVALID, FE_OVERFLOW and FE_DIVBYZERO
  now signal the corresponding lisp errors by default.

Fixed

• Pathnames and filesystem operations support Unicode (#1595).
• Package names support Unicode (#1596).
• Clasp threads can now be more reliably interrupted while they are
  blocking (e.g. waiting to grab a mutex, or for input).