GNU Guile

Programmers can use this library to write software extensions and modules.

Extension languages allow users, programmers, and third-party developers to add features to a program without having to re-write the program as a whole, and it allows people extending a program to co-operate with each other, without having to expend any extra effort.

What is new in this release:

• This release fixes an embarrassing regression introduced in the C interface to SRFI-4 vectors.

What is new in version 1.9.11:

• Implementations of R6RS libraries.
• Macro expansion produces structures instead of s-expressions.
• Partial R6RS compatibility.
• Deprecated `scm_badargsp'.
• Module system macros rewritten as hygienic macros.

What is new in version 1.9.7:

• Complete support for version information in Guile's `module' form.
• Support for renaming bindings on module export.
• Imported statprof, SSAX, and texinfo modules from Guile-Lib.
• Function profiling and tracing at the REPL.
• New debugger.
• New function, `truncated-print', with `format' support.
• Primitive procedures are now VM trampoline procedures.
• SRFI-4 vectors reimplemented in terms of R6RS bytevectors.
• Nonstandard SRFI-4 procedures now available from `(srfi srfi-4 gnu)'.
• Unicode: String normalization, general categories, title case.
• Faster access to the free variables of a closure.
• Changed invocation mechanics of applicable SMOBs.

What is new in version 1.9.5:

• VM support for multiple-arity dispatch.
• Intermediate language support for multiple-arity procedures.
• Better support for Lisp `nil'.
• Support for static allocation of strings, symbols, and subrs.
• Inline vector allocation.

What is new in version 1.9.4:

• Fix compilation of literal bitvectors.
• Fix segfault for `(uniform-array->bytevector (bitvector))'
• Fix `gitlog-to-changelog' on NixOS.
• Fix REPL environment for languages other than scheme.

What is new in version 1.9.2 Alpha:

• VM speed improvements
• VM robustness improvements
• The maximum number of live local variables has been increased from 256 to 65535
• The address range for relative jumps has been expanded from 16-bit addresses to 19-bit addresses via 8-byte alignment of jump targets
• Preliminary support for Unicode
• EBCDIC support is removed
• Guile now provides `guile-2.0.pc' (used by pkg-config) instead of `guile-1.8.pc'
• The usual collection of bugfixes

What is new in version 1.9.1 Alpha:

• Made the non-integrated VM test-suite less verbose.
• Fixed unaligned access in the VM code.
• Switched remaining GPLv2+ Guile-VM headers to LGPLv3+.
• Fixed typo in the compile-type verification of `OBJCODE_COOKIE'.