News

New SBCL versions are usually released at the end of each month: check the Sourceforge File List to see the current version. The new features of the two most recent SBCL releases are listed below.

Please see the complete news page for details on all historical SBCL releases.

New in version 1.0.19

• new feature: user-customizable variable SB-EXT:*MUFFLED-WARNINGS*; warnings that go otherwise unhandled will be muffled if they are of the type that's the value of this variable.
• optimization: stack allocation is slightly more efficient on x86 and x86-64.
• bug fix: DEFSTRUCT forms with user-specified :CONSTRUCTOR options, where a raw slot always is initialized using the initform whose type is not know sufficiently well a compile-time are now compiled correctly. (reported by John Morrison)
• bug fix: compiler no longer makes erronous assumptions in the presense of non-foldable SATISFIES types.
• bug fix: stack analysis missed cleanups of dynamic-extent arguments in non-let-converted calls to local functions.
• improvements to the Windows port:
  • adjusted address spaces for building on both Win32 and Win64. (thanks for John Connors)
• fixed some bugs revealed by Paul Dietz' test suite:
  • interval arithmetic during type derivation used inexact integer to single-float coercions.
  • arithmetic operations involving large integers and single floats give the same results in compiled and interpreted code.
  • deriving the result type of COERCE no longer signals an error if the derived type of the second argument is a MEMBER type containing invalid type specifiers.
  • ADJOIN with constant NIL as second argument works correctly.
  • FUNCTION-KEYWORDS was called SB-PCL::FUNCTION-KEYWORD-PARAMETERS.

New in version 1.0.18

• minor incompatible change: SB-SPROF:WITH-PROFILING now by default profiles only the current thread.
• minor incompatible change: changes to SYMBOL-VALUE of constants defined with DEFCONSTANT now signal an error.
• enhancement: SB-SPROF now has support for wallclock profiling, and is also able to profile specific threads. REPORT output has also additional sorting options.
• enhancement: better pretty-printing of DEFPACKAGE forms. (Thanks to Michael Weber)
• optimization: structure allocation has been improved
  • constructors created by non-toplevel DEFSTRUCTs are ~40% faster.
  • out of line constructors are ~10% faster.
  • inline constructors are ~15% faster.
  • inline constructors are capable of dynamic extent allocation (generally on x86 and x86-64, in some cases on other platforms as well.)
• optimization: simple uses of HANDLER-CASE and HANDLER-BIND no longer cons.
• optimization: file compiler is now able to coalesce non-circular lists, non-base strings, and bit-vectors. Additionally, constants are never referenced through SYMBOL-VALUE at runtime.
• optimization: code defining methods on PRINT-OBJECT (and other generic functions in the COMMON-LISP package) now loads faster.
• bug fix: EAI_NODATA is deprecated since RFC 3493. Stop using it in sb-bsd-sockets.
• bug fix: if COMPILE-FILE aborts due to an unwind, the partial fasl is now deleted. (reported by Attila Lendvai)
• bug fix: READ-LINE always returned NIL for the last line in files. (reported by Yoshinori Tahara)
• bug fix: more accurate disassembly annotations of foreign function calls. (thanks to Andy Hefner)
• bug fix: trimming non-simple strings and non-string string designators when the there is nothing to trim works properly. (thanks to James Knight)
• new feature: SB-POSIX bindings for mlockall, munlockall, and setsid. (thanks to Travis Cross)
• fixed some bugs revealed by Paul Dietz' test suite:
  • NIL is a valid function name (regression at 1.0.13.38)
  • FILL on lists was missing its return value (regression at 1.0.12.27)
  • STRING-TRIM, STRING-LEFT-TRIM, and STRING-RIGHT-TRIM did not respect fill pointers properly (regression at 1.0.12.23)
  • STRING-TRIM, STRING-LEFT-TRIM, and STRING-RIGHT-TRIM did not respect displacement indices properly (regression at 1.0.12.23)