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  • sbcl-1.1.13

    changes in sbcl-1.1.13 relative to sbcl-1.1.12:
      * optimization: better distribution of SXHASH over small conses of related
        values.  (lp#309443)
      * other improvements to SXHASH:
        ** use the whole of the positive-fixnum range for SXHASH of fixnums
      * enhancement: The error message when calling an undefined alien function
        includes the name of the function on x86-64.
      * enhancement: sb-ext:run-program now supports :environment on Windows.
      * enhancement: ASDF is no longer required to load contribs at runtime.
        (lp#1132254)
      * enhancement: when called with a symbol, FIND-RESTART no longer calls
        COMPUTE-RESTARTS, making it faster and cons less (lp#769615)
      * enhancement: FIND-RESTART and COMPUTE-RESTARTS handle huge restart
        clusters better in some cases
      * enhancement: SOME/ANY/other quantification higher-order functions no
        longer cons. (lp#1070635)
      * bug fix: forward references to classes in fasls can now be loaded.
        (lp#746132)
      * bug fix: don't warn on a interpreted->compiled function redefinition
        from the same location.  (patch by Douglas Katzman, lp#1042405)
      * bug fix: Create vectors of proper internal length when reading literal
        vectors from FASLs. (Reported by Jan Moringen)
      * bug fix: COMPILE can now succefully compile setf functions.
        (Reported by Douglas Katzman)
      * bug fix: run-program performs more correct escaping of arguments on
        Windows. (lp#1239242)
      * bug fix: function-lambda-expression on generic functions returns the
        actual name.
      * bug fix: (the [type] [constant]) now warns when [constant] matches
        [type] except for the number of values.  (Reported by Nathan Trapuzzano
        on sbcl-help)
      * bug fix: signal errors in required cases of slot-definition initialization
        protocol.  (lp#309072)
      * bug fix: run-sbcl.sh works better in the presence of symlinks on OS X.
        (thanks to Stelian Ionescu, lp#1242643)
      * bug fix: when given a restart object, FIND-RESTART checks whether the
        restart is active and, when a condition is supplied, whether the restart
        is associated to a different condition (lp#774410)
    
  • debian/2%1.1.12-1

    ed7999d2 · new upstream release ·
    sbcl Debian release 2:1.1.12-1
    
  • sbcl-1.1.12

    changes in sbcl-1.1.12 relative to sbcl-1.1.11:
      * enhancement: Add sb-bsd-sockets:socket-shutdown, for calling
        shutdown(3). (thanks to Jan Moringen, lp#1207483)
      * enhancement: document extensible sequences.  (thanks to Jan Moringen,
        lp#994528)
      * optimization: EQUAL and EQUALP transforms are smarter.
        (thanks to Elias Martenson, lp#1220084)
      * optimization: CHAR-EQUAL is faster for constant and base-char arguments.
      * bug fix: probe-file now can access symlinks to pipes and sockets in
        /proc/pid/fd on Linux. (reported by Eric Schulte)
      * bug fix: SBCL can now be built on Solaris x86-64.
      * bug fix: Floating point exceptions do not persist on Solaris anymore.
      * bug fix: (setf . a) is pprinted correctly (reported by Douglas Katzman).
      * bug fix: handle compiler-error in LOAD when it's not run from inside EVAL.
        (lp#1219601)
      * bug fix: SB-GMP:MPZ-POW no longer segfaults given a non-bignum base.
        (thanks to Stephan Frank)
      * bug fix: space allocation of result bignums in SB-GMP is more accurate.
        (thanks to Stephan Frank, lp#1206191)
      * bug fix: sb-safepoint can now reliably handle signal interruptions of
        foreign code. (lp#1133018)
      * bug fix: the compiler-macro for MAKE-INSTANCE when emitting "fallback"
        constructors no longer fails to merge actual and default initargs
        (thanks to Jan Moringen, lp#1179858)
      * bug fix: the compiler-macro for MAKE-INSTANCE when emitting "fallback"
        constructors handles non-KEYWORD initialization arguments more correctly.
      * bug fix: loading the SB-SIMPLE-STREAMS contributed module no longer
        clobbers FILE-NAMESTRING.  (thanks to Anton Kovalenko, lp#884603)
      * bug fix: class definitions with CPLs inconsistent with their metaclasses
        are less likely to destroy the object system's integrity.  (lp#309076)
      * bug fix: restart clause parsing in RESTART-CASE is more in line with the
        standard.  (lp#1203585, thanks to Jan Moringen)
      * bug fix: silence a note from RESTART-CASE under high-SPEED optimization
        settings.  (lp#1023721)
      * bug fix: getting the order of arguments to
        SB-MOP:SET-FUNCALLABLE-INSTANCE-FUNCTION wrong produces a sensible error
        rather than a failed AVER.  (reported by Paul Nathan)
      * bug fix: Parsing of &optional/&key/&rest arguments now never overwrites
        arguments during copying on x86 and x86-64; it may still happen on other
        platforms when there are more fixed arguments than stack slots.
        (reported by Jan Moringen)
    
  • debian/2%1.1.11-1

    adb9b016 · Update version ·
    sbcl Debian release 2:1.1.11-1
    
  • sbcl-1.1.11

    changes in sbcl-1.1.11 relative to sbcl-1.1.10:
      * enhancement: support building the manual under texinfo version 5.
        (lp#1189146)
      * enhancement: Windows builds no longer display the "Kitten of Death" message.
        A warning is instead appended to the regular banner, and may be muted with
        --noinform.  (lp#728247)
      * enhancement: support building under new linker handling of syscalls under
        NetBSD.  (thanks to Robert Swindells)
      * bug fix: undefined function errors are now properly reported on PPC and MIPS.
        (regression since 1.1.9)
      * bug fix: (funcall (function X junk)) didn't causes an error when X had a
        compiler macro.  (thanks to Douglas Katzman).
      * bug fix: signal a warning when defining a setf-function when a
        setf-expander is already present.  (thanks to Douglas Katzman).
      * bug fix: improved threading on PPC.
      * bug fix: ROOM works again on Windows.  (lp#1206456)
      * bug fix: Streams were flushed even when there was one byte still left in
        the buffer. (lp#910213)
      * bug fix: OPEN handles correctly when :if-exists and :if-does-not-exist are
        either NIL or :ERROR.  (reported by Jan Moringen)
    
  • sbcl-1.1.10

    changes in sbcl-1.1.10 relative to sbcl-1.1.9:
      * enhancement: ASDF has been updated to 3.0.2.
      * optimization: stack frames are packed more efficiently on x86oids, which
        ought to reduce the frequency of Methuselahn conservative references (it
        certainly helps with gc.impure.lisp / BUG-936304 on x86).
      * optimization: on x86 and x86-64, integer negation forms like (- x) are now
        recognized in modular arithmetic contexts, and compile to native negate,
        rather than going through bignums only to keep the low bits.
      * bug fix: Compiling potential modularic arithmetic forms does not cause type
        errors when some integer types lack lower or upper bounds. (lp#1199127)
      * bug fix: Non-trivial modular arithmetic forms are always cut to the right
        bitwidth before being used in a non-modular context. (lp#1199428)
      * bug fix: Multiple catch/unwind blocks in a single function are now
        allocated in the right stack order on win32. (lp#1072739)
    
  • sbcl-1.1.9

    changes in sbcl-1.1.9 relative to sbcl-1.1.8:
      * new feature: the contrib SB-GMP links with libgmp at runtime to speed
        up arithmetic on bignums and ratios.  (contributed by Stephan Frank)
      * enhancement: disassemble now annotates some previously missing static
        functions, like LENGTH.
      * enhancement: clean.sh now also cleans doc/internals.
      * enhancement: SB-EXT:PRINT-SYMBOL-WITH-PREFIX can be used within ~// to
        print a symbol with a package prefix.
      * enhancement: The debugger and backtracing are more robust against buggy
        PRINT-OBJECT methods.
      * optimization: calls to static functions on x86-64 use less instructions.
      * optimization: compute encode-universal-time at compile time when possible.
      * optimization: when referencing internal functions as #'x, don't go through
        an indirect fdefn structure.
      * optimization: SLEEP doesn't cons on non-immediate floats and on ratios.
      * optimization: (mod fixnum) type-checks are performed using one unsigned
        comparison, instead of two.
      * optimization: enable more modular arithmetic transforms in the presence of
        conditionals.
      * optimization: bitwise OR forms can now trigger modular arithmetic as well,
        when the result is known to be negative.
      * optimization: recognize more cases of useless LOGAND/LOGIOR with constants.
      * optimization: comparisons between rationals and constant floats or between
        integers and constant ratios are now converted to rationals/integers at
        compile time.
      * optimization: Smaller and faster DOUBLE-FLOAT-LOW-BITS on x86-64.
      * bug fix: problems with NCONC type derivation (reported by Jerry James).
      * bug fix: EXPT type derivation no longer constructs bogus floating-point
        types.  (reported by Vsevolod Dyomkin)
      * bug fix: sb-bsd-sockets has correct declaration of the canonname field of
        addrinfo. (lp#1187041, patch by Jerry James)
      * bug fix: uninitialized type-error conditions can now be printed.
        (lp#1184586)
      * bug fix: tests for sb-bsd-sockets no longer use a predefined port for
        listening, allowing several tests to run in parallel.
      * bug fix: during disassembly to *COMPILER-TRACE-OUTPUT* instruction
        prefixes as used on x86 and x86-64 no longer sometimes print incorrectly.
        (lp#1085729)
      * bug fix: Specialised SIMD-PACK types can be negated.
      * bug fix: Modular arithmetic is more robust. (incidentally fixes another bug
        reported by Eric Marsden)
      * bug fix: FP return values from foreign calls are always rounded to single
        or double float precision on x87.
      * bug fix: Known-safe vector access on x86oids should not fail spuriously
        when the index is of the form (+ x constant-positive-integer).
      * bug fix: Remove GPL-licensed files from source distribution. (lp#1185668)
      * bug fix: backtrace printer no longer tries to create very large lists when
        the arg-count register is clobberred by other code. (lp#1192929)
      * bug fix: x86 should never signal an FP exception while boxing an FP value,
        a situation that lands us into ldb.
    
  • sbcl-1.1.8

    changes in sbcl-1.1.8 relative to sbcl-1.1.7:
      * notice: The implementation of MAP-ALLOCATED-OBJECTS (the heart of
        ROOM, plus a few SB-INTROSPECT functions) has been completely
        rewritten; it may now exhibit different bugs than before.
      * new feature: minimal runtime/compiler intrastructure support for SSE
        SIMD values, as SB-EXT:SIMD-PACK. Enabled on x86-64 via the build-time
        feature :sb-simd-pack. This should enable intrinsics extensions as
        libraries, without patching SBCL itself. Thanks to Alexander Gavrilov
        for maintaining a branch for so long.
      * enhancement: RUN-PROGRAM supports a :DIRECTORY argument to set
        the working directory of the spawned process.
        (lp#791800) (patch by Matthias Benkard)
      * enhancement: boxed vectors (vectors of T or of FIXNUM) can now be
        stack-allocated on PPC.
      * enhancement: "fixed objects" can now be stack-allocated on PPC.
      * enhancement: WITH-PINNED-OBJECTS no longer conses on PPC/GENCGC.
      * enhancement: (sb-introspect:find-definition-sources-by-name x :vop) now
        also returns VOPs which do not translate any functions, and finds
        defoptimizer types ir2convert and stack-allocate-result.
      * enhancement: better type derivation for APPEND, NCONC, LIST.
        (lp#538957)
      * enhancement: MAP-ALLOCATED-OBJECTS (the heart of ROOM) now walks the
        heap in a manner similar to the GC rather than its previous ad-hoc
        scheme, and is therefore no less and possibly more accurate.
      * fixes and enhancements related to Unicode:
        ** the character database information has been updated to Unicode 6.2;
        ** support for canonical and compatibility decomposition of characters has
           been added, along with support for primary composition;
        ** support for Unicode normalization forms of strings (NFC, NFKC, NFD and
           NFKD) has been included;
        ** querying the character database for code points not defined by Unicode
           gives less wrong answers (lp#1178038, reported by Ken Harris)
      * enhancement: print intermediate evaluation results for some ASSERTed
        expressions. (lp#789497) (patch by Alexandra Barchunova)
      * enhancement: x86-64 disassemblies are annotated with unboxed constant
        values when there are references to (RIP-relative) unboxed constants.
      * bug fix: type derivation for LOG{AND,IOR,XOR} scales linearly instead
        of quadratically with the size of the input in the worst case.
        (lp#1096444)
      * bug fix: handle errors when initializing *default-pathname-defaults*,
        sb-ext:*runtime-pathname*, sb-ext:*posix-argv* on startup, like character
        decoding errors, or directories being deleted.
      * bug fix: Loading a core with a discontiguous dynamic space now correctly
        computes the amount of dynamic space used.
      * bug fix: disassembler missing ",8" on SHLD
      * bug fix: backtracing through INTERNAL-ERROR signal handlers on systems
        that provide an "invalid" stack frame link for the signal handler
        itself now use the saved-fp-and-pc mechanism to pick up from the stack
        frame in the interrupt (signal) context.  This is known to affect
        threaded FreeBSD/x86-64.
      * bug fix: some LOOP statements couldn't be compiled.
        (lp#1178989)
      * bug fix: sb-sequence:dosequence works on literal vectors.
      * bug fix: errors in generic arithmetic show the assembly routine's
        caller on x86 and x86-64. (lp#800343)
      * bug fix: Compile-time type errors should never result in COMPILE-FILE
        failure. (lp#943953)
      * bug fix: Known bad local calls do not cause strange failures when
        emitting or dumping code. (lp#504121)
      * bug fix: Multiply-inlined structure constructor don't cause IR2-time
        codegen errors: type checks are inserted as necessary. (lp#1177703)
      * bug fix: Unsigned modular arithmetic is correctly converted into signed
        modular arithemtic (mostly to exploit fixnum-width VOPs). (lp#1026634)
      * bug fix: a combination of inlined local function with &optional and
        recursion no longer causes undescriptive compiler errors. (lp#1180992)
      * bug fix: sub-word BOOLEAN alien types now disregard higher order bits
        when testing for non-zero-ness.
      * bug fix: (CONCATENATE 'null ...) no longer fails for generic sequences.
        (lp#1162301)
      * bug fix: Type mismatch for the value of conditional expressions are
        correctly reported when detected at compile-time, instead of complaining
        about a constant NIL (similar for non-EQ-comparable catch tags).
      * bug fix: Referring to INLINE global functions as values should not result
        in a compilation failure. (lp#1035721)
      * optimization: faster ISQRT on fixnums and small bignums
      * optimization: faster and smaller INTEGER-LENGTH on fixnums on x86-64.
      * optimization: On x86-64, the number of multi-byte NOP instructions used
        for code alignment is now always minimal.
      * optimization: On 64-bit targets, the compiler generates much faster
        code for type checks for types known at compile time that are smaller
        than (SIGNED-BYTE 64) or (UNSIGNED-BYTE 64) and larger than FIXNUM, and
        their COMPLEX variants.
      * optimization: On x86 targets, more uses of ALIEN-FUNCALL during cross
        compilation now inline the INVOKE-WITH-SAVED-FP-AND-PC dance.
      * optimization: ROOM no longer conses so egregiously on non-x86oid
        systems.
      * optimization: associative bitwise operations reassociate patterns like
        (f (f x k1) k2) to expose (f x (f k1 k2)).  Same for + and * of
        rational values.
      * optimization: quasiquote expressions now perform more constant folding,
        instead of consing equal lists at runtime. (lp#1026439)
      * optimization: local call analysis of inlined higher-order function
        should converge more quickly, resulting in better code for complex
        functions.
      * optimization: On x86-64, medium (word-sized but wider than 32 bits)
        integer constants are handled more cleverly, especially when they
        can be represented as sign-extended (signed-byte 32). (Based on a
        patch by Douglas Katzman)
      * optimization: IF/IF conversion should reliably result in sane code
        when (some of) the results of the inner IF are always false or
        always true.
      * optimization: On x86oids, variable right shifts of machine words are
        compiled into straight SAR/SHR, instead of going through the generic
        VOP. (lp#1066204)
    
  • sbcl-1.1.7

    changes in sbcl-1.1.7 relative to sbcl-1.1.6:
      * enhancement: TRACE :PRINT-ALL handles multiple-valued forms.
        (lp#457053)
      * bug fix: :allocation slot option works for condition slots
        (lp#1049404)
      * bug fix: redefining conditions does not lead to multiple evaluations of
        hairy slot initfunctions anymore (lp#1164969)
      * bug fix: CLASS-DIRECT-DEFAULT-INITARGS now works for condition classes
        (lp#1164970)
      * bug fix: function constants now work as initforms and default initarg
        values of conditions (lp#539517)
      * bug fix: svref/(setf svref) on symbol macros don't crash the compiler
        anymore. (Minimal test case provided by James M. Lawrence on sbcl-devel)
      * bug fix: no more bogus ## references when pretty printing backquoted
        forms with non-trivial structure sharing. (lp#1161218)
      * bug fix: Don't signal an error on (setf (documentation nil 'function)
        "doc").  Signal a style-warning instead when trying to set documentation
        of NIL for all other documentation types.  (Reported by Zach
        Beane; regression since 2e52fa05.)
      * bug fix: modular arithmetic involving large constants and conditionals
        should no longer result in spurious dead code elimination.  (Reported by
        Eric Marsden).
      * bug fix: our mach exception handler can seemingly called very early in
        the program execution process on OS X 10.8.0. Try and handle that case
        robustly, without potentially leaking mach ports too much.
      * optimization: LOGBITP and LOGTEST optimizations from x86 ported to x86_64.
    
  • debian/2%1.1.6-1

    2cf15f0a · New upstream version ·
    Debian release 2:1.1.6-1
  • sbcl-1.1.6

    changes in sbcl-1.1.6 relative to sbcl-1.1.5:
      * enhancement: the continuable error when defknown-ing over extant
        fndb entries can be ignored by passing :overwrite-fndb-silently t
        as a keyword argument to sb-c:defknown (after attributes). Useful
        to allow defknown to be re-loaded. Use with :allow-other-keys t
        for backward compatibility.
      * optimization: compiler is much faster in compiling SVREF and (SETF SVREF)
        forms.
      * bug fix: Prevent a make-array transform from modifying source forms
        causing problems for inlined code. Thanks to Bart Botta.
        (regression since 1.0.42.11-bis)
      * bug fix: clear-output calls the correct gray stream routine,
        sb-gray:stream-clear-output. (lp#1153257)
      * bug fix: an error is signalled for an invalid format modifier: ~<~@>.
        (lp#1153148)
      * bug fix: Better error messages for package operations (lp#1154776)
      * bug fix: delete-package on a nonexistent package should signal a cerror.
        (regression since 1.0.37.44).
      * bug fix: accessing &MORE (stack allocated &REST) arguments checks bounds.
        (lp#1154946, lp#1072112)
      * bug fix: compiling make-array no longer signals an error when the
        element-type is an uknown type, a warning is issued instead.
        Thanks to James Kalenius (lp#1156095)
      * bug fix: SEARCH on generic (non-VECTOR non-LIST) sequence types no longer
        produces wrong results for some inputs.  (Thanks to Jan Moringen.)
        (lp#1153312)
    
  • sbcl-1.1.5

    changes in sbcl-1.1.5 relative to sbcl-1.1.4:
      * minor incompatible change: SB-SPROF:WITH-PROFILING no longer loops
        by default.
      * new feature: package local nicknames. See manual for details.
      * new feature: SB-EXT:MAP-DIRECTORY provides a powerful interface for
        directory traversal: it is the backend used by SBCL for CL:DIRECTORY.
      * enhancement: easier to use restarts for resolving name-conflicts
        resulting from IMPORT, EXPORT, or USE-PACKAGE.
      * enhancement: variant DEFPACKAGE forms now signal a full error with
        restarts provided for resolving the situation. (lp#891351)
      * enhancement: by setting SB-EXT:*ON-PACKAGE-VARIANCE* appropriately variant
        DEFPACKAGE forms can now signal a full error with restarts provided for
        resolving the situation. See manual for details. (lp#891351)
      * enhancement: make-random-state now uses CryptGenRandom as a seed on Windows.
        (Thanks to Anton Kovalenko.) (lp#1102748)
      * enhancement: backtrace improvements
        ** secondary CLOS dispatch functions have better debug names (lp#503081)
        ** easier to read method names in backtraces. See
           SB-DEBUG:*METHOD-FRAME-STYLE*.
        ** SB-DEBUG:PRINT-BACKTRACE and SB-DEBUG:LIST-BACKTRACE are available as
           forwards-compatible replacements for SB-DEBUG:BACKTRACE and
           SB-DEBUG:BACKTRACE-AS-LIST.
        ** SB-DEBUG:*SHOW-ENTRY-POINT-DETAILS** has been deprecated, as the same
           information is available in less intrusive form as frame annotations.
      * enhancement: SB-POSIX now provides MAP-ANON.
      * enhancement: test-suite results are colorized, failures in red, unexpected
        success in green. Works on Windows and on terminals with ANSI escape code
        support. Can be disabled with --no-color.
      * optimization: SB-CONCURRENCY:QUEUE implementation is more efficient.
        (thanks to James M. Lawrence)
      * bug fix: no more unused variable style warnings from RESTART-CASE
        macroexpansion (lp#1113859)
      * bug fix: no more unused variable style warnings when loading
        sb-bsd-sockets.asd (lp#1114681)
      * bug fix: deleting a package removes it from implementation-package
        lists of other packages.
      * bug fix: SB-SPROF:WITH-PROFILING is now usable in the Slime REPL on Darwin.
        This does not fix the occasional "interrupt already pending" issue, though.
      * bug fix: (setf (documentation 'x 'function)) and
        (setf (documentation #'x t)) set documentation in different places.
        (regression since 1.0.43.63)
      * bug fix: build on newer glibc. (lp#1095036)
    
  • debian/2%1.1.4-1

    fdb2e466 · Merge tag 'sbcl-1.1.4' ·
    Debian release 2:1.1.4-1
    
  • sbcl-1.1.4

    changes in sbcl-1.1.4 relative to sbcl-1.1.3:
      * optimization: LOOP expressions using "of-type character" have slightly
        more efficient expansions.
      * bug fix: very long (or infinite) constant lists in DOLIST do not result
        in very long compile times or heap exhaustion anymore. (lp#1095488)
      * bug fix: `#3(1) is read as #(1 1 1), not as #(1). (lp#1095918)
      * bug fix: adjust-array ignored :initial-element for simple-vectors.
        (lp#1096359)
      * bug fix: optimizations to MAKE-INSTANCE with literal list initargs no
        longer cause infinite loops (on circular data) or violate eqlity
        constraints.  (lp#1099708)
      * bug fix: FIRST was not being open coded. (regression from 1.1.0)
    
  • sbcl-1.1.3

    changes in sbcl-1.1.3 relative to sbcl-1.1.2:
      * enhancement: warnings about bad locale settings, LANG, LC_CTYPE, etc.
        (lp#727625)
      * enhancement: support for C-c to interrupt the foreground thread
        on Windows.  (Thanks to Anton Kovalenko.)
      * enhancement: STDCALL alien callbacks. (Thanks to Anton Kovalenko.)
      * enhancement: Safepoint builds on POSIX platforms can now optionally be
        built without pseudo-atomic sequences and their run-time overhead.
      * enhancement: Threads created outside of Lisp can enter Lisp through
        alien callbacks and appear as Lisp threads for the duration of that
        function invocation.  On safepoint builds only.
      * enhancement: Miscellaneous improvements to namestrings and underlying
        calls to OS functions for file system access on Windows.  (Thanks to
        Anton Kovalenko.)
      * enhancement: The MSI installer support for Windows now uses Windows
        Installer XML at least version 3.5 and includes various usability
        improvements.  (Thanks to Dmitry Kalyanov and Anton Kovalenko.)
      * enhancement: The sb-bsd-sockets contrib now supports non-blocking-mode
        on Windows.  (Thanks to Anton Kovalenko.)
      * enhancement: The Windows backend now supports the x86-64 platform.
        (Thanks to Anton Kovalenko.)
      * bug fix: fasls are now once again directly executable (on platforms
        supporting shebang lines, with a suitably-installed sbcl).
      * bug fix: make.sh --help no longer runs clean.sh. (lp#937001)
      * bug fix: Fix CAS access to slots of direct instances of structure classes
        in the presence of subclasses sharing the same conc-name.
      * bug fix: Logical pathname namestrings on Windows have been changed to
        be lower-case, to minimize differences between POSIX and Windows.
    
  • debian/2%1.1.1.0-3

    f5044023 · update to 1.1.1.0-3 ·
    Debian release 2:1.1.1.0-3
  • sbcl-1.1.2

    changes in sbcl-1.1.2 relative to sbcl-1.1.1:
      * notice: System requirements for SBCL on Microsoft Windows: Windows NT 5.1
        or newer (Windows XP, Server 2003) is required.  Support for Windows 2000
        (NT 5.0) is no longer being maintained.
      * notice: Starting with this version, SBCL on Windows no longer supports
        building with disabled thread support.
      * enhancement: frlocks have been added to SB-CONCURRENCY contrib module.
      * enhancement: New feature sb-dynamic-core allows the runtime to be
        rebuilt or relocated without requiring changes to the core file on
        all linkage table platforms.  Required on Windows.  (Thanks to Anton
        Kovalenko.)
      * enhancement: Console I/O streams use UCS-2. (Thanks to Anton Kovalenko.)
      * enhancement: I/O on Windows unnamed pipes is interruptible
        asynchronously using interrupt-thread, timers when running on Windows NT
        version 6.1 or newer (Windows 7, Server 2008 R2).  (Thanks to Anton
        Kovalenko.)
      * enhancement: Support for the experimental safepoint-based stop-the-world
        protocol on the PowerPC platform.
      * bug fix: Non-blocking reads from the Windows console were not necessarily
        non-blocking. Thanks to Anton Kovalenko. (lp#308923)
      * bug fix: stability of threads on Windows has been improved upon through
        an updated stop-the-world protocol (thanks to Anton Kovalenko).