/[cmucl]/src/general-info/release-19b.txt
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1 rtoy 1.2 ========================== C M U C L 19 b =============================
2 rtoy 1.1
3     [--- WORK IN PROGRESS --- DO NOT DISTRIBUTE ---]
4    
5 rtoy 1.2 The CMUCL project is pleased to announce the release of CMUCL 19b.
6 rtoy 1.1 This is a major release which contains numerous enhancements and
7 rtoy 1.2 bugfixes from the 19a release.
8 rtoy 1.1
9     CMUCL is a free, high performance implementation of the Common Lisp
10     programming language which runs on most major Unix platforms. It
11     mainly conforms to the ANSI Common Lisp standard. CMUCL provides a
12     sophisticated native code compiler; a powerful foreign function
13     interface; an implementation of CLOS, the Common Lisp Object System,
14     which includes multimethods and a metaobject protocol; a source-level
15     debugger and code profiler; and an Emacs-like editor implemented in
16     Common Lisp. CMUCL is maintained by a team of volunteers collaborating
17     over the Internet, and is mostly in the public domain.
18    
19     New in this release:
20    
21     * Feature enhancements:
22 rtoy 1.26 - CMUCL ported to Mac OS X.
23 rtoy 1.3 - Added a much faster and much less consy bignum printer and a
24     faster bignum reader.
25     - Extended REQUIRE to support *MODULE-PROVIDER-FUNCTIONS* from
26     SBCL.
27 rtoy 1.6 - NetBSD supported.
28 rtoy 1.2 - SIMPLE-STREAM fixes:
29     o READ-SEQUENCE and WRITE-SEQUENCE for
30     signed-byte/unsigned-byte 8 streams.
31     o Memory-mapped file streams.
32 rtoy 1.4 - Large file support for Solaris, so CMUCL can handle files
33     larger than 2GB.
34 rtoy 1.6 - Support for Mac OS X.
35     - A much faster GCD implementation.
36     - A faster Karatsuba multiplier when the number of words of the
37     bignums is not a power of 2. (Break-even is still around 1500
38     bits, though.)
39     - New command-line switch -debug-lisp-search to show how lisp is
40     searching for its core file.
41 rtoy 1.7 - DEBUG-RETURN implemented which allows you to return a value
42     from function. Only enabled with DEBUG 3.
43     - Lazy sxhash on symbols implemented for ppc.
44 rtoy 1.9 - Pretty-printer for LOOP.
45     - Added some more pprinters for various forms.
46 rtoy 1.10 - Callbacks supported on Mac OS X.
47 rtoy 1.11 - Loop analysis code added to the compiler. It's incorporated
48 rtoy 1.13 into the build and can be enabled by setting *loop-analyze* to
49     T, but the compiler doesn't use the loop information for
50     anything yet.
51 rtoy 1.12 - Errors from socket functions signal a SOCKET-ERROR instead of
52     ERROR.
53     - Efficiency notes are no longer printed if inhibit-warnings >=
54 rtoy 1.14 2.5.
55     - Simple support for datagram networking added: INET-RECVFROM,
56     INET-SENDTO, INET-SHUTDOWN.
57 rtoy 1.16 - Linkage table support for PPC and Darwin.
58 rtoy 1.17 - A socket reset signals a SOCKET-ERROR condition instead of a
59     general ERROR condition.
60 rtoy 1.18 - :LINKAGE-TABLE feature is now supported on PPC.
61 rtoy 1.21 - MAKE-INDENTING-STREAM and INDENTING-STREAM-P are exported from
62     the EXTENSIONS package instead of being internal.
63     - TRACE will work now for the known-return convention, which
64     used to require encapsulation so that only the first call was
65     traced. Useful for tracing recursive functions.
66     - Bivalent streams are supported. Thus, streams with
67     element-type (unsigned-byte 8) can be used for character
68     input/output as well as binary input/output. Supply the
69     option :CLASS 'EXT:BINARY-TEXT-STREAM for OPEN to get bivalen
70     streams. EXT:READ-VECTOR and EXT:WRITE-VECTOR also
71     implemented. This is somewhat experimental right now, and may
72     change slightly in a future version.
73 rtoy 1.22 - Loading fasls compiled for a different version of CMUCL will
74     now signal an EXT:INVALID-FASL error instead a generic error.
75 rtoy 1.1
76     * Numerous ANSI compliance fixes:
77 rtoy 1.3 - FILE-AUTHOR should signal errors appropriately.
78 rtoy 1.1 - CMUCL was computing the wrong value for some special functions
79     when the argument was on the branch cut for the function.
80     - MULTIPLE-VALUE-BIND accepts &REST and friends in the var list.
81     - When constructing logical pathnames, all components will be
82     automatically upcased. Needed for print/read consistency, and
83     fixes an issue with ASDF and logical pathnames.
84 rtoy 1.5 - Numerous fixes to the float printer, including a new float
85     printer.
86     - Justification (~< ~>) works better.
87     - ~V with the value of NIL in format strings is treated to mean
88     as if it weren't given at all, as specified by ANSI CL.
89     - Characters print consistently with ~:C and ~S.
90 rtoy 1.7 - Numerous bug fixes for pretty-printing and format strings.
91     - Pathnames are now printed with #P instead of #p.
92     - The types COMPLEX and (COMPLEX REAL) are the same now.
93     - UPGRADED-COMPLEX-PART-TYPE returns RATIONAL for integer types
94     now. (CMUCL doesn't really have a (COMPLEX INTEGER) type).
95     - When a pathname can't be printed readably, signal a
96     PRINT-NOT-READABLE condition
97 rtoy 1.8 - Printing arrays readably was sometimes wrong.
98 rtoy 1.9 - FOR-AS-ON-LIST works with dotted lists.
99     - DEFSTRUCT predicates for list structures don't produce errors
100     anymore on dotted or short lists.
101     - UNBOUND-SLOT condition no longer takes the :slot keyword. It
102     uses the ANSI-specified :name keyword. This is not backward
103     compatible!
104     - MAKE-SYMBOL takes STRING's, not just SIMPLE-STRING's.
105     - PPRINT-POP did not return NIL when the list arg to
106     PPRINT-LOGICAL-BLOCK was NIL.
107     - Signal appropriate error conditions instead of a plain error
108     condition in many situations.
109     - TYPECASE was treating the type T as an otherwise clause even
110 rtoy 1.11 though it was not the last clause. It should be just a
111 rtoy 1.9 regular clause.
112     - ASIN, ACOS, ACOSH, and ATANH were returning the wrong values
113     when the arg was a real number on the branch cut.
114     - Missed some places where loop variables were duplicated, which
115     should signal a program-error.
116 rtoy 1.11 - LOOP INITIALLY clauses occur after variable initialization for
117     FOR, WITH, and AS clauses, as required by ANSI CL.
118 rtoy 1.12 - Format bugs in ~{ and ~@[X~], as noted by ansi-tests, have
119     been fixed.
120 rtoy 1.13 - Evaluation order of REMF, INCF, and DECF.
121     - When *read-suppress* is T, READ, READ-PRESERVING-WHITESPACE,
122     READ-DELIMITED-LIST, and READ-FROM-STRING now return NIL, as
123     specified by ANSI CL. (Previously, CMUCL would return a list
124     of NILs.)
125 rtoy 1.17 - Pathname components of type :UNSPECIFIC are not printed in
126     namestrings anymore.
127 rtoy 1.18 - Dumping of symbols in fasls work according to ANSI now.
128 rtoy 1.23 - READ-FROM-STRING was sometimes not returning the correct
129     second value when the string was a displaced string.
130     - The invalid trait for constituent characters is handled
131     better.
132     - (formatter "~V[...~]" now returns the correct result for
133     second value.
134 rtoy 1.24 - MAKE-DISPATCH-MACRO-CHARACTER is supposed to return T.
135     - APROPOS and APROPOS-LIST don't take 3 args anymore. ANSI CL
136     says they only take 2.
137 rtoy 1.26 - A reader error is signaled when bad ratios (like 1/0) are read
138     or when a float can't fit into the specified float type.
139 rtoy 1.25 - A form like #(1 . 2) signals a reader error now.
140 rtoy 1.1
141     * Numerous bugfixes:
142 rtoy 1.3 - FFLOOR and friends preserve the sign of the arg, so -0.0 is
143     returned for negative args.
144     - EXPT sometimes returne NaN instead of 1 when the power was 0.
145 rtoy 1.4 - Weak pointers don't have O(n^2) GC behavior anymore.
146 rtoy 1.6 - X11 authorization changes to solve problems seen with servers
147     that don't listen to TCP connection requests.
148 rtoy 1.7 - unix-read fix
149     - The compiler would give an error on deriving the result type
150     of RANDOM when the arg to RANDOM was a union type.
151     - "~*~" was not being parsed to mean a wildcard version.
152     - UNIX-GETPWUID implemented for Darwin. Needed for FILE-AUTHOR.
153     - The compiler no longer gives errors when deriving the result type of
154     coerce when converting a integer to a float that would not fit
155     in a float.
156     - Fix bug in reading from streams with element-type SIGNED-BYTE
157 rtoy 1.9 for sizes greater than 32: Positive numbers were incorrectly
158 rtoy 1.7 being returned as negative.
159 rtoy 1.8 - REMOVE-DUPLICATES was not honoring the :START option.
160 rtoy 1.9 - PPRINT-LOGICAL-BLOCK sometimes didn't close the block properly
161     because PPRINT-EXIT-IF-LIST-EXHAUSTED caused an early exit.
162     - Macro expansion was not looking in the local environment
163     properly for local definitions.
164     - Circular Weak pointers can now be printed when *print-circle*
165     is T.
166     - "foo.lisp.*" is interpreted to have version :wild, just like
167     "foo.lisp.~*~".
168     - DIRECTORY will report all versions of a file if the pathname
169     has version :wild.
170     - Fixed bug with CLX on MacOS X where the WM-SIZE-HINTS were
171     larger than CLX expected. Replaced card16 with card32.
172 rtoy 1.10 - Callbacks on sparc that returned double-floats were sometimes
173     causing a sigbus error.
174 rtoy 1.11 - Type specifiers like (float low high) where low and high were
175     outside the range of single-float numbers no longer cause
176     compiler errors.
177     - Fix source-form reporting in the disassembler.
178 rtoy 1.12 - Arrays in fasl files had non-NIL fill-pointer. Make them NIL.
179     - FILE-POSITION was incorrectly set for simple-streams after a
180     READ-VECTOR.
181     - Printing 1d23 no longer causes an error.
182     - Work around the problem of (concatenate 'fixnum '(1)) causing
183     deletion of all following code.
184     - A directory with a component of :WILD was not correctly
185     handled.
186     - CREATE-INET-LISTENER was missing a call to htonl.
187 rtoy 1.13 - (coerce #c(1 2) '(complex float)) works now.
188 rtoy 1.14 - Type derivation for logior and logxor was broken.
189     - Fixed bug where (setf (aref f 0) (aref d 0)) doesn't produce a
190     warning and causes code including the function return to be
191     deleted, where f is a single-float array and d is a
192     double-float array.
193     - COUNT for bit arrays was sometimes failing to include the
194     count from the last 32-bits of the array.
195 rtoy 1.15 - The default heap size was causing CMUCL to fail on Solaris
196     10. Change the default so this doesn't happen. (The real
197     cause is unknown.)
198 rtoy 1.18 - In some cases, the compiler was spending large amounts of time
199     deriving union of a bunch of disjoint integer intervals. If
200     the union is long enough, we give up and just return the
201     smallest new interval that contains all of the disjoint
202     intervals. (This needs a better fix.)
203 rtoy 1.19 - The :WHEREIN option to TRACE handles methods now.
204 rtoy 1.21 - The maximum dynamic space size was wrong on Linux.
205     - Type inferencing for OPEN was broken when :IF-DOES-NOT-EXIST
206     was given and was not a compile-time constant.
207     - ~G output always had a zero for the last digit when
208     exponential form was used. Fix this so the last digit has the
209     correct digit.
210 rtoy 1.24 - Output to (make-two-way-stream (make-concatenated-stream)
211     (make-broadcast-stream)) silently discards output instead of
212     producing an error.
213     - STRING<, STRING<=, STRING>, STRING>= no longer produces
214     incorrect results.
215     - COPY-SEQ sometimes produced erroneous results because the
216     compiler was confused by the derived result type of COPY-SEQ.
217     - Many (all?) compiler failures about a STRANGE-TEMPLATE-FAILURE
218     should be fixed.
219 rtoy 1.25 - Type derivation for LOGAND is fixed. (Affects LOGAND and
220     LOGBITP.)
221     - Type derivation for SCALE-FLOAT is fixed. Should also work
222     better on x86.
223 rtoy 1.26 - generic-site.lisp won't give an error when updating
224     *HERALD-ITEMS* when the -quiet flag is used.
225 rtoy 1.14
226 rtoy 1.1 * Other changes:
227 rtoy 1.11 - Infinite loops in map and friends caused by specifying
228     sequence types that are too hairy for CMUCL should no longer
229     occur. But CMUCL will now signal an error, which may not be
230     compliant either.
231 rtoy 1.12 - Compiler is a little smarter in deriving the result type of
232     MAP.
233 rtoy 1.13 - MAKE-PATHNAME will accept a :HOST arg of NIL, and will use NIL
234     as the host slot instead of filling in the host slot from the
235     defaults.
236 rtoy 1.18 - CMUCL/sparc should now run on Solaris 10. This port no longer
237     uses the reserved register %g7 anymore. The heap size is now
238     rounded to a multiple of 8 MB. Without this, CMUCL eventually
239     gets a GC error on Solaris 10 when using gencgc. There appear
240     to be no problems with Cheney GC on Solaris 10.
241 rtoy 1.20 - The config script uses REQUIRE instead of LOAD to load up
242     CMUCL's system libraries so there are no package-lock errors.
243     - REQUIRE no longer disables package-locks when loading
244     requested file. But package-locks are disabled for CMUCL's
245     own system libraries like gray-streams, clx, etc.
246 rtoy 1.26 - CMUCL should fail gracefully on x86 if something is already
247     mapped at addresses CMUCL wants for itself. Previously, CMUCL
248     would just use it.
249 rtoy 1.13
250 rtoy 1.5 * Improvements to the PCL implementation of CLOS:
251 rtoy 1.14 - AMOP-style custom slot allocation supported.
252 rtoy 1.1
253     * Improvements to Hemlock, the Emacs-like editor:
254    
255     * Changes to rebuilding procedure:
256    
257     * Deprecated features:
258    
259     This release is not binary compatible with code compiled using CMUCL
260     19a; you will need to recompile FASL files.
261    
262     See <URL:http://www.cons.org/cmucl/> for download information,
263     guidelines on reporting bugs, and mailing list details.
264    
265    
266     We hope you enjoy using this release of CMUCL!
267    

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