-changes in sbcl-0.6.13 relative to sbcl-0.6.12:
-* a port to the Compaq/DEC Alpha CPU, thanks to Dan Barlow
-* Martin Atzmueller ported Tim Moore's marvellous CMU CL DISASSEMBLE
- patch, so that DISASSEMBLE output is much nicer.
-* The code in the SB-PROFILE package now seems reasonably stable.
- I still haven't decided what the final interface should look like
- (I'd like PROFILE to interact cleanly with TRACE, since both
- facilities use function encapsulation) but if you have a need
- for profiling now, you can probably use it successfully with
- the current CMU-CL-style interface.
-* Pathnames and *DEFAULT-DIRECTORY-DEFAULTS* are much more
- ANSI-compliant, thanks to various fixes and tests from Dan Barlow.
- Also, at Dan Barlow's suggestion, TRUENAME on a dangling symbolic
- link now returns the dangling link itself, and for similar
- reasons, TRUENAME on a cyclic symbolic link returns the cyclic
- link itself. (In these cases the old code signalled an error and
- looped endlessly, respectively.) Thus, DIRECTORY now works even
- in the presence of dangling and cyclic symbolic links.
-* Compiler trace output (the :TRACE-FILE option to COMPILE-FILE)
- is now a supported extension again, since the consensus on
- sbcl-devel was that it can be useful for ordinary development
- work, not just for debugging SBCL itself.
-* The default for SB-EXT:*DERIVE-FUNCTION-TYPES* has changed to
- NIL, i.e. ANSI behavior, i.e. the compiler now recognizes
- that currently-defined functions might be redefined later with
- different return types.
-* Hash tables can be printed readably, as inspired by CMU CL code
- of Eric Marsden and SBCL code of Martin Atzmueller.
-* better error handling in CLOS method combination, thanks to
- Martin Atzmueller porting Pierre Mai's CMU CL patches
-* more overflow fixes for >16Mbyte I/O buffers
-* A bug in READ has been fixed, so that now a single Ctrl-D
- character suffices to cause end-of-file on character streams.
- In particular, now you only need one Ctrl-D at the command
- line (not two) to exit SBCL.
-* fixed bug 26: ARRAY-DISPLACEMENT now returns (VALUES NIL 0) for
- undisplaced arrays.
-* fixed bug 107 (reported as a CMU CL bug by Erik Naggum on
- comp.lang.lisp 2001-06-11): (WRITE #*101 :RADIX T :BASE 36) now
- does the right thing.
-* The implementation of some type tests, especially for CONDITION
- types, is now tidier and maybe faster, due to CMU CL code
- originally by Douglas Crosher, ported by Martin Atzmueller.
-* Some math functions have been fixed, and there are new
- optimizers for deriving the types of COERCE and ARRAY-ELEMENT-TYPE,
- thanks to Raymond Toy's work on CMU CL, ported by Martin Atzmueller.
-* (There are also some new optimizers in contrib/*-extras.lisp. Those
- aren't built into sbcl-0.6.13, but are a sneak preview of what's
- likely to be built into sbcl-0.7.0.)
-* A bug in COPY-READTABLE was fixed. (Joao Cachopo's patch to CMU
- CL, ported to SBCL by Martin Atzmueller)
-* DESCRIBE now gives more information in some cases. (Pierre Mai's
- patch to CMU CL, ported to SBCL by Martin Atzmueller)
-* Martin Atzmueller and Bill Newman fixed some bugs in INSPECT.
-* There's a new slam.sh hack to shorten the edit/compile/debug
- cycle for low-level changes to SBCL itself, and a new
- :SB-AFTER-XC-CORE target feature to control the generation of
- the after-xc.core file needed by slam.sh.
-* minor incompatible change: The ENTRY-POINTS &KEY argument to
- COMPILE-FILE is no longer supported, so that now every function
- gets an entry point, so that block compilation looks a little
- more like the plain vanilla ANSI section 3.2.2.3 scheme.
-* minor incompatible change: SB-EXT:GET-BYTES-CONSED now
- returns the number of bytes consed since the system started,
- rather than the number consed since the first time the function
- was called. (The new definition parallels ANSI functions like
- CL:GET-INTERNAL-RUN-TIME.)
-* minor incompatible change: The old CMU-CL-style DIRECTORY options,
- i.e. :ALL, :FOLLOW-LINKS, and :CHECK-FOR-SUBDIRS, are no longer
- supported. Now DIRECTORY always does the abstract Common-Lisp-y
- thing, i.e. :ALL T :FOLLOW-LINKS T :CHECK-FOR-SUBDIRS T.
-* Fasl file version numbers are now independent of the target CPU,
- since historically most system changes which required version
- number changes have affected all CPUs equally. Similarly,
- the byte fasl file version is now equal to the ordinary
- fasl file version.
+changes in sbcl-0.8.6 relative to sbcl-0.8.5:
+ * fixed a bootstrapping bug: the build process no longer assumes
+ that the various BOOLE-related constants have the same value in
+ host and target lisps. (noted by Paul Dietz' test suite on an
+ SBCL binary built from CLISP)
+ * The system can now be dynamically linked on the MIPS platform,
+ which enables dynamic loading of foreign code from Lisp. (thanks
+ to Ralf Baechle for discussions on the MIPS ABI)
+ * The system now records debugging information for its own source
+ files in a filesystem-position-independent manner, relative to
+ the "SYS" logical host.
+ * fixed a compiler bug: MV-LET convertion did not check references
+ to the "max args" entry point. (reported by Brian Downing)
+ * tweaked disassembly notes to be less confident about proclaiming
+ some instruction as an LRA. (thanks to Brian Downing)
+ * contrib update: SB-ACLREPL is now threadsafe; multiple listeners
+ now each have their own history, command character, and other
+ characteristics. (thanks to David Lichteblau)
+ * fixed some bugs revealed by Paul Dietz' test suite:
+ ** compiler failure in compiling LOGAND expressions including a
+ constant 0
+ ** Implementation of ASH-MOD32 on X86 and PPC did not work for the
+ shift greater than 32.
+ ** FLUSH-DEST did not mark blocks for type check regeneration.
+ ** HANDLER-CASE failed to accept declarations in handler clauses
+ in some circumstances.
+
+changes in sbcl-0.8.5 relative to sbcl-0.8.4:
+ * New code in contrib/sb-introspect (still probably not entirely
+ stable yet) provides some support for smart Lisp development
+ environments like SLIME.
+ * The conditions signalled for errors occurring when loading .fasl
+ files have been systematized (inheriting from SB-EXT:INVALID-FASL)
+ in a way which should help ASDF recover gracefully.
+ * The REQUIRE/PROVIDE behavior of *MODULE-PROVIDER-FUNCTIONS*
+ stuff has been cleaned up. If you code contrib/ stuff, this might
+ affect you, and you can look at contrib/README, contrib/STANDARDS,
+ and/or the 0.8.4.27 diff to check.
+ * In full calls the compiler now does not generate checks for declared
+ argument types for all arguments.
+ * various threading fixes
+ ** and some experimental patches which didn't make it into
+ the main tree for this release, but which are shipped in
+ contrib/experimental-thread.patch as a possible fix for some
+ failures (deadlock, spinning...) in GC-intensive multithreaded
+ applications.
+ * fixed PPC build problem (source code incompatibility of different
+ library versions): added offsetof() hackery which attempts to divine
+ where glibc maintainers put uc_mcontext today
+ * fixed bug 282: compiler does not trust type assertions while passing
+ arguments to a full call.
+ * fixed bug 261: compiler allows NIL or "no value" to be accepted for
+ &OPTIONAL VALUES type parameter.
+ * fix bug 214: algorithm for noting rejected templates is now more
+ similar to that of template seletion. (also reported by rydis on
+ #lisp)
+ * fixed bug 141b: printing backquoted information readably and prettily
+ inserts a space where necessary.
+ * bug fix: obviously wrong type specifiers such as (FIXNUM 1) or
+ (CHARACTER 10) are now reported as errors, rather than propagated
+ as unknown types. (reported by piso on #lisp)
+ * bug fix: the :IF-EXISTS argument to OPEN now behaves correctly
+ with values NIL and :ERROR. (thanks to Milan Zamazal)
+ * fixed bug 191c: CLOS now does proper keyword argument checking as
+ described in CLHS 7.6.5 and 7.6.5.1.
+ * bug fix: LOOP forms using NIL as a for-as-arithmetic counter no
+ longer raise an error; further, using a list as a for-as-arithmetic
+ counter now raises a meaningful error.
+ * fixed bug 213a: even fairly unreasonable CONS type specifiers are
+ now understood by sequence creation functions such as MAKE-SEQUENCE
+ and COERCE.
+ * fixed bug 46k: READ-BYTE now signals an error when asked to read from
+ a STRING-INPUT-STREAM.
+ * compiler enhancement: SIGNUM is now better able to derive the type
+ of its result.
+ * type declarations inside WITH-SLOTS are checked. (reported by
+ salex on #lisp)
+ * fixed some bugs revealed by Paul Dietz' test suite:
+ ** incorrect optimization of TRUNCATE for a positive first
+ argument and negative second.
+ ** compiler failure in let-convertion during flushing dead code.
+ ** compiler failure while deriving type of TRUNCATE on an
+ interval, containing 0.
+ ** ASH of a negative bignum by a negative bignum count now returns
+ -1, not 0.
+ ** intersection of CONS types now canonicalizes properly, fixing
+ inconsistencies in SUBTYPEP.
+
+changes in sbcl-0.8.4 relative to sbcl-0.8.3:
+ * incompatible change: The --disable-debugger command line
+ option now clobbers the debugger at a more fundamental
+ level, by redefining #'INVOKE-DEBUGGER instead of by
+ rebinding *DEBUGGER-HOOK*. The main difference is that BREAK
+ is specified by ANSI to ignore *DEBUGGER-HOOK* and
+ INVOKE-DEBUGGER regardless. Under the old system, BREAK would
+ enter the debugger REPL and then suffer recursive errors
+ because *DEBUG-IO* is also messed up in --disable-debugger mode;
+ while under the new system, BREAK in --disable-debugger mode
+ terminates the system just as an unhandled error would.
+ * fixed compiler performance when processing loops with a step >1;
+ * bug fix: DOCUMENTATION now retrieves generic function
+ documentation. Also, DOCUMENTATION and (SETF DOCUMENTATION)
+ support has been systematized, and now supports the methods
+ specified by ANSI, along with a default method and a method for
+ slot documentation. (reported by Nathan Froyd)
+ * bug fix: effective methods associated with a generic function are
+ no longer cached over a change of that generic function's method
+ combination. (reported by Andreas Fuchs)
+ * bug fix: RUN-PROGRAM now does not fail if some element in $PATH
+ names a non-existent directory. (thanks to Andreas Fuchs)
+ * bug fix: ROUND and TRUNCATE could, under certain circumstances on
+ the PPC platform, lead to stack corruption; this has been fixed.
+ (reported by Rainer Joswig)
+ * bug fix: ASH on an (UNSIGNED-BYTE 32) with a shift of -32 or lower
+ no longer ever returns 1 instead of 0. (thanks to Lars Brinkhoff)
+ * fixed bug 285: TRUNCATE on bignum arguments, and indeed bignum
+ arithmetic in general, is now much more reliable on the PPC
+ platform.
+ * bug fix: LOGCOUNT on (UNSIGNED-BYTE 64) objects on the Alpha
+ platform now returns the right answer.
+ * optimization: restored some effective method precomputation in
+ CLOS (turned off by an ANSI fix in sbcl-0.8.3); the amount of
+ precomputation is now tunable.
+ * optimization: compiler-internal data structure use has been
+ reviewed, and changes have been made that should improve the
+ performance of the compiler by about 20%.
+ * optimization: performance of FILL (and :INITIAL-ELEMENT) on
+ simple-base-strings and simple-bit-vectors is improved.
+ * optimization: the optimization of 32-bit logical and arithmetic
+ functions introduced in version 0.8.3 on the x86 has been
+ implemented on the mips, ppc and sparc platforms; an
+ implementation of the same facility, but for 64-bit arithmetic,
+ has been added for the alpha.
+ * microoptimization: the compiler is better able to make use of the
+ x86 LEA instruction for multiplication by constants.
+ * bug fix: in some situations compiler did not report usage of
+ generic arithmetic in (SPEED 3) policy.
+ * bug 145b fix: compiler used wrong type specifier while converting
+ MEMBER-types to numeric.
+ * bug fix: COMPILE-FILE must bind *READTABLE*. (reported by Doug
+ McNaught)
+ * bug fix: (SETF AREF) on byte-sized-element arrays with constant
+ index argument now works properly on the Alpha platform.
+ * bug fix: floating point exception treatment on the Alpha platform
+ is improved.
+ * bug fix: FILE-POSITION works much better on string input and
+ output streams. (thanks to Nikodemus Siivola)
+ * bug fix: many threading/garbage collection symptoms sorted.
+ SB-THREAD:INTERRUPT-THREAD now safe to call on a thread that
+ might be pseudo-atomic.
+ * internal change: Stopping for GC is now done with signals not
+ ptrace. GC is now done in whichever thread wanted it, instead of
+ in the parent.
+ * bug fix: GC hooks (missing since 0.8) reinstated, so finalizers
+ work again.
+ * bug fix: result form in DO is not contained in the implicit
+ TAGBODY.
+ * incompatible change: ICR structure is changed; the value part of
+ CONTINUATION is now called LVAR; corresponding functions are
+ renamed (e.g. SB-C::CONTINUATION-TYPE has become SB-C::LVAR-TYPE).
+ * added type deriver for ISQRT (thanks to Robert E. Brown).
+ * bug fix: better support for loading from the command line when an
+ initialization file sets (READTABLE-CASE *READTABLE*). (thanks
+ to Adam Warner)
+ * fixed some bugs revealed by Paul Dietz' test suite:
+ ** the RETURN clause in LOOP is now equivalent to DO (RETURN ...).
+ ** ROUND and FROUND now give the right answer when given very
+ small float arguments.
+ ** (FLOAT X) for X of type DOUBLE-FLOAT now returns X in all
+ circumstances.
+ ** optimizer for (EXPT X 0) did not work for X not of type FLOAT.
+ ** (GCD 0 <negative-integer>) returned <negative-integer>.
+ ** LCM should return a non-negative integer.
+ ** PARSE-INTEGER returned the index of a terminator instead of the
+ upper bounding index of a substring in case :JUNK-ALLOWED NIL.
+ ** PARSE-INTEGER returned an incorrect index being applied to a
+ displaced string.
+ ** LCM with two arguments of 0 returns 0 rather than signalling
+ DIVISION-BY-ZERO.
+ ** unsigned addition of a 32-bit constant with the high bit set no
+ longer causes an internal compiler error on the x86.
+ ** LOGBITP accepts a non-negative bignum as its INDEX argument.
+ ** compiler incorrectly derived types of DPB and DEPOSIT-FIELD
+ with negative last argument.
+ ** byte specifiers with zero size and position no longer cause
+ an error during type derivation.
+ ** bignum multiplication on the Alpha platform now returns the
+ right answer.
+ * porting: The system now builds on SuSE AMD64, although it still
+ generates a 32-bit binary.
+ * .fasl file incompatibility: The fasl file version number has
+ been incremented (because of the changes to internal compiler
+ data structures referred to above).
+
+changes in sbcl-0.8.3 relative to sbcl-0.8.2:
+ * SBCL now builds and runs on MacOS X (version 10.2), or perhaps
+ more accurately, on the Darwin kernel running on PowerPC hardware.
+ (thanks to Brian Mastenbrook, Pierre Mai and Patrik Nordebo)
+ * Compiler code deletion notes now signal a condition of type
+ SB-EXT:CODE-DELETION-NOTE (a subtype of SB-EXT:COMPILER-NOTE) with
+ an associated MUFFLE-WARNING restart.
+ * The compiler now performs limited argument count validation of
+ constant format strings in FORMAT, and where appropriate in ERROR,
+ CERROR and WARN. (thanks to Gerd Moellmann)
+ * New ASDF-INSTALL contrib can be used for automatic download and
+ installation of third-party Lisp code from CCLAN or other sites
+ via CLiki.
+ * Threaded builds (:SB-THREAD) now support SB-THREAD:INTERRUPT-THREAD,
+ which forces another thread to execute a function supplied by the
+ caller.
+ * bug 75 fix: WITH-OUTPUT-TO-STRING (and MAKE-STRING-OUTPUT-STREAM)
+ now accept and act upon their :ELEMENT-TYPE keyword argument.
+ (reported by Martin Atzmueller, Edi Weitz)
+ * bug fix: FILE-POSITION now accepts position designators up to
+ ARRAY-DIMENSION-LIMIT or the extreme of the off_t range, whichever
+ is the greater. (thanks to Patrik Nordebo)
+ * bug fix: MAKE-ARRAY ignored :INITIAL-CONTENTS NIL. (reported by
+ Kalle Olavi Niemitalo)
+ * bug fix: the CLASS-PROTOTYPE of the GENERIC-FUNCTION class is now
+ printable. (reported by Eric Marsden)
+ * bug fix in sb-posix: mmap() now works on systems with a 64-bit
+ off_t, including Darwin and FreeBSD. (thanks to Andreas Fuchs)
+ * x86 bug fix in control stack exhaustion checking: now shows backtrace
+ * bug fix in WITH-TIMEOUT: now the body can have more than one form.
+ (thanks to Stig Sandoe)
+ * bug fix in READ-SEQUENCE: READ-SEQUENCE following PEEK-CHAR or
+ UNREAD-CHAR now correctly includes the unread character in the
+ target sequence. (thanks to Gerd Moellmann)
+ * bug fix in threaded builds: the system can now be suspended and
+ resumed by shell job control with minimal disruption.
+ * bug fixes in times and timezones >2038AD
+ * better handling of "where is GNU make?" problem in build scripts
+ (thanks to Nikodemus Siivola)
+ * new optimization: inside a named function any reference to a
+ function with the same name is considered to be a self-reference;
+ this behaviour is controlled with SB-C::RECOGNIZE-SELF-CALLS
+ optimization quality.
+ * new optimization on x86: logical functions and + now have
+ optimized (UNSIGNED-BYTE 32) versions, which are automatically
+ used when the result is truncated to 32 bits.
+ * VALUES declaration is partially enabled.
+ * fixes in SB-GROVEL (thanks to Andreas Fuchs)
+ * fixed some bugs revealed by Paul Dietz' test suite:
+ ** The system now obeys the constraint imposed by
+ UPGRADED-ARRAY-ELEMENT-TYPE that the upgraded array element
+ types form a lattice under type intersection.
+ ** FFLOOR, FTRUNCATE, FCEILING and FROUND work with integers.
+ ** ASSOC now ignores NIL elements in an alist.
+ ** CEILING now gives the right answer with MOST-NEGATIVE-FIXNUM
+ and (1+ MOST-POSITIVE-FIXNUM) answers.
+ ** The addition of a method with invalid qualifiers to a generic
+ function does not cause an error to be signalled immediately;
+ a warning is signalled, and the error is generated only on
+ calling the generic function.
+ * changed .fasl file version number, in part to add type codes for
+ new array subtypes UNSIGNED-BYTE 7, 15, 29, and 31 mandated by
+ obscure ANSI requirements
+
+changes in sbcl-0.8.2 relative to sbcl-0.8.1:
+ * fixed bug 148: failure to inline-expand a local function left
+ garbage, confusing the compiler.
+ * fixed bugs 3cd: structure slot readers perform type check if the
+ slot can have an invalid value (i.e. it is either not initialized
+ or can be written with a less specific slot writer).
+ * bug fix: the compiler now traps array references to elements off
+ the end of an array; previously, the bounds checking in some
+ circumstances could go off-by-one.
+ * improved MACHINE-VERSION, especially on Linux (thanks to Lars
+ Brinkhoff)
+ * type declarations for array element types now obey the description
+ on the CLHS page "Declaration TYPE", as per discussions on
+ sbcl-help around 2003-05-08. This means that a declaration
+ (TYPE (ARRAY FOO) BAR) means that, within the scope of the
+ declaration, all references to BAR will be asserted or assumed
+ (with THE, so dependent on compiler policy) to involve objects of
+ type FOO. Note that no such declaration is implied in
+ (MAKE-ARRAY .. :ELEMENT-TYPE 'FOO).
+ * declared types of functions from the "Conditions"
+ chapter. (reported by Paul Dietz)
+ * bug fix: CERROR accepts a function as its first argument.
+ * bug fix: NTH an NTHCDR accept a bignum as index
+ arguments. (reported by Adam Warner)
+ * optimization: character compare routines now optimize comparing
+ against a constant character. (reported by Gilbert Baumann)
+ * bug fix: (SETF AREF) on byte-sized-element arrays with constant index
+ argument now works properly on the MIPS platform.
+ * fixed compiler failure on (TYPEP x '(NOT (MEMBER 0d0))).
+ * repeated evaluation of the same DEFSTRUCT, a slot of which is
+ declared to have a functional type, does not cause an error
+ anymore.
+ * fixed bug: sometimes MAKE-INSTANCE did not work with classes with
+ many :DEFAULT-INITARGS. (reported by Istvan Marko)
+ * fixed bug: if last continuation of a deleted block has a
+ destination, this destination should be deleted too. (reported by
+ ohler on #lisp)
+ * fixed a bug in the bootstrap process: the host compiler's values
+ of ARRAY-DIMENSION-LIMIT and ARRAY-TOTAL-SIZE-LIMIT no longer leak
+ into the newly-built SBCL. (reported by Eric Marsden on #lisp,
+ test case from Patrik Nordebo)
+ * improved the ability of the disassembler on the PPC platform to
+ provide helpful disassembly notes.
+ * SB-MOP:CLASS-PROTOTYPE on built-in-classes returns an instance of
+ the class in more cases than previously.
+ * bug fix: FILE-POSITION now understands :START and :END for
+ STRING-INPUT-STREAMs. (thanks to Nikodemus Siivola)
+ * bug fix: (SIGNED-BYTE 8) streams no longer return (UNSIGNED-BYTE
+ 8) data. (thanks to David Lichteblau)
+ * bug fix: it is possible to add a method to a generic function
+ without lambda list.
+ * bug fix: reader failed to signal END-OF-FILE inside an
+ object representation. (reported by Nikodemus Siivola)
+ * fixed some bugs revealed by Paul Dietz' test suite:
+ ** LAST and [N]BUTLAST should accept a bignum.
+ ** condition slot accessors are methods.
+ ** (VECTOR NIL) is a subtype of STRING.
+
+changes in sbcl-0.8.1 relative to sbcl-0.8.0:
+ * minor incompatible change: some nonsensical specialized lambda
+ lists (used in DEFMETHOD) which were previously ignored now signal
+ errors.
+ * minor incompatible change: the system is now aware of the types of
+ variables in the COMMON-LISP package, and will signal errors for
+ most violations of these type constraints (where previously they
+ were silently accepted).
+ * minor incompatible change: COMPILE-FILE now uses the freedom
+ afforded (ANSI 3.2.2.3) to use derived function types for
+ functions defined in the same file. This also permits the system
+ to warn on static type mismatches and function
+ redefinition. (Currently it does not work with high DEBUG level.)
+ * minor incompatible change: VALUES declaration is disabled.
+ * When issuing notes, the compiler now signals a condition of type
+ SB-EXT:COMPILER-NOTE, and provides an associated MUFFLE-WARNING
+ restart for use in user handlers. It is expected that the
+ COMPILER-NOTE condition will eventually become a condition
+ supertype to a hierarchy of note types, which will then be
+ handleable in a similar fashion. However, at the moment, no such
+ note subtypes yet exist. (SB-INT:SIMPLE-COMPILER-NOTE exists,
+ but it's an implementation detail, not a classification for the
+ purpose above.)
+ * Changes in type checking closed the following bugs:
+ ** type checking of unused values (192b, 194d, 203);
+ ** template selection based on unsafe type assertions (192c, 236);
+ ** type checking in branches (194bc).
+ * A short form of VALUES type specifier has ANSI meaning (it has
+ increased the number of situations when SBCL cannot perform type
+ checking).
+ * fixed bug in DEFSTRUCT: once again, naming structure slots with
+ keywords or constants is permissible.
+ * STREAM-READ-SEQUENCE and STREAM-WRITE-SEQUENCE now have methods
+ defined on the relevant FUNDAMENTAL-BINARY-{INPUT,OUTPUT}-STREAM
+ classes. (thanks to Antonio Martinez)
+ * improved ANSIness in DESCRIBE: The DESCRIBE function no longer
+ outputs FRESH-LINE or TERPRI, and no longer converts its stream
+ argument to a pretty-print stream. Instead, it leaves any such
+ operations to DESCRIBE-OBJECT methods.
+ * bug fix: APROPOS now respects the EXTERNAL-ONLY flag. (reported
+ by Teemu Kalvas)
+ * bug fix: NIL is now a valid destructuring argument in DEFMACRO
+ lambda lists. (thanks to David Lichteblau)
+ * bug fix: Defining a generic function with a :METHOD-CLASS being a
+ subclass of STANDARD-METHOD no longer causes stack exhaustion.
+ (thanks to Gerd Moellmann)
+ * fixed bug 246: increased compilation speed of long
+ MULTIPLE-VALUE-BIND (and likewise of NTH-VALUE with a constant
+ integer argument)
+ * a contributed module implementing COMPILER-LET and MACROEXPAND-ALL
+ has been included.
+ * DEFCONSTANT now throws a condition of type
+ SB-EXT:DEFCONSTANT-UNEQL if it is being asked to redefine a
+ constant to a non-EQL value; CONTINUE and ABORT restarts
+ respectively change and preserve the value.
+ * fixed bug 63: The code walker, part of the implementation of CLOS,
+ is now better at handling symbol macros.
+ * bug fix: There is no longer an internal implementation type named
+ CL:LENGTH. (reported by Raymond Toy)
+ * bug fix: In macro-like defining macros/special operators the
+ implicit block does not enclose the lambda list.
+ * fixed bugs 10 and 43: Bare VALUES, AND, OR and MEMBER symbols (not
+ enclosed in parentheses) are not suitable as type specifiers, and
+ their use properly signals an error now.
+ * bug fix: An argument count mismatch for a type specifier in code
+ being compiled no longer causes an unhandled error at compile
+ time, but signals a compile-time warning.
+ * fixed simple vector readable printing
+ * bug fix: DESCRIBE takes more care over whether the class
+ precedence list slot of a class is bound before accessing it.
+ (reported by Markus Krummenacker)
+ * bug fix: FORMATTER can successfully compile pretty-printer format
+ strings which use variants of the ~* directive inside.
+ * bug fix: SEARCH now applies its TEST predicate to the elements of
+ the arguments in the correct order. (thanks to Wolfhard Buss)
+ * fixed bug 235b: The compiler uses return types of MAPCAR and friends
+ in type inference. (thanks to Robert E. Brown)
+ * bug fix: Reading in symbols with an explicit package name of ""
+ (e.g. '||::FOO) now works correctly. (reported by Henrik Motakef)
+ * fixed some bugs revealed by Paul Dietz' test suite:
+ ** NIL is now allowed as a structure slot name.
+ ** Arbitrary numbers, not just REALs, are allowed in certain
+ circumstances in LOOP for-as-arithmetic clauses.
+ ** Multiple class redefinitions before slot access no longer
+ causes a type error.
+ ** (SETF FIND-CLASS) now accepts NIL as an argument to remove the
+ association between the name and a class.
+ ** Generic functions with non-standard method-combination and over
+ five methods all of which return constants no longer return NIL
+ after the first few invocations. (thanks to Gerd Moellmann)
+ ** CALL-NEXT-METHOD with no arguments now passes the original
+ values of the arguments, even in the presence of assignment.
+ ** Functions [N]SUBST*, LAST, NRECONC, [N]SUBLIS may return any
+ object.
+ ** DISASSEMBLE works with closures and funcallable instances.
+ ** ADD-METHOD now returns the generic function, not the new method.
+ ** FIND-METHOD signals an error if the lengths of the specializers
+ is incompatible with the generic function, even if the ERRORP
+ argument is true.
+ ** TYPE-OF returns recognizeable subtypes of all built-in-types of
+ which its argument is a member.
+ ** DEFCLASS only redefines the class named by its class-name
+ argument if that name is the proper name of the class;
+ otherwise, it creates a new class.
+ ** SLOT-UNBOUND now correctly initalizes the CELL-ERROR-NAME slot
+ of the UNBOUND-SLOT condition to the name of the slot.
+ ** (SETF (AREF bv 0) ...) did not work for bit vectors.
+ ** SLOT-UNBOUND and SLOT-MISSING now have their return values
+ treated by SLOT-BOUNDP, SLOT-VALUE, (SETF SLOT-VALUE) and
+ SLOT-MAKUNBOUND in the specified fashion.