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1 ========================== C M U C L 19 b =============================
2
3 [--- WORK IN PROGRESS --- DO NOT DISTRIBUTE ---]
4
5 The CMUCL project is pleased to announce the release of CMUCL 19b.
6 This is a major release which contains numerous enhancements and
7 bugfixes from the 19a release.
8
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 - Added a much faster and much less consy bignum printer and a
23 faster bignum reader.
24 - Extended REQUIRE to support *MODULE-PROVIDER-FUNCTIONS* from
25 SBCL.
26 - NetBSD supported.
27 - SIMPLE-STREAM fixes:
28 o READ-SEQUENCE and WRITE-SEQUENCE for
29 signed-byte/unsigned-byte 8 streams.
30 o Memory-mapped file streams.
31 - Large file support for Solaris, so CMUCL can handle files
32 larger than 2GB.
33 - Support for Mac OS X.
34 - A much faster GCD implementation.
35 - A faster Karatsuba multiplier when the number of words of the
36 bignums is not a power of 2. (Break-even is still around 1500
37 bits, though.)
38 - New command-line switch -debug-lisp-search to show how lisp is
39 searching for its core file.
40 - DEBUG-RETURN implemented which allows you to return a value
41 from function. Only enabled with DEBUG 3.
42 - Lazy sxhash on symbols implemented for ppc.
43 - Pretty-printer for LOOP.
44 - Added some more pprinters for various forms.
45 - Callbacks supported on Mac OS X.
46
47 * Numerous ANSI compliance fixes:
48 - FILE-AUTHOR should signal errors appropriately.
49 - CMUCL was computing the wrong value for some special functions
50 when the argument was on the branch cut for the function.
51 - MULTIPLE-VALUE-BIND accepts &REST and friends in the var list.
52 - When constructing logical pathnames, all components will be
53 automatically upcased. Needed for print/read consistency, and
54 fixes an issue with ASDF and logical pathnames.
55 - Numerous fixes to the float printer, including a new float
56 printer.
57 - Justification (~< ~>) works better.
58 - ~V with the value of NIL in format strings is treated to mean
59 as if it weren't given at all, as specified by ANSI CL.
60 - Characters print consistently with ~:C and ~S.
61 - Numerous bug fixes for pretty-printing and format strings.
62 - Pathnames are now printed with #P instead of #p.
63 - The types COMPLEX and (COMPLEX REAL) are the same now.
64 - UPGRADED-COMPLEX-PART-TYPE returns RATIONAL for integer types
65 now. (CMUCL doesn't really have a (COMPLEX INTEGER) type).
66 - When a pathname can't be printed readably, signal a
67 PRINT-NOT-READABLE condition
68 - Printing arrays readably was sometimes wrong.
69 - FOR-AS-ON-LIST works with dotted lists.
70 - DEFSTRUCT predicates for list structures don't produce errors
71 anymore on dotted or short lists.
72 - UNBOUND-SLOT condition no longer takes the :slot keyword. It
73 uses the ANSI-specified :name keyword. This is not backward
74 compatible!
75 - MAKE-SYMBOL takes STRING's, not just SIMPLE-STRING's.
76 - PPRINT-POP did not return NIL when the list arg to
77 PPRINT-LOGICAL-BLOCK was NIL.
78 - Signal appropriate error conditions instead of a plain error
79 condition in many situations.
80 - TYPECASE was treating the type T as an otherwise clause even
81 though it was not the last clause. It's should be just a
82 regular clause.
83 - ASIN, ACOS, ACOSH, and ATANH were returning the wrong values
84 when the arg was a real number on the branch cut.
85 - Missed some places where loop variables were duplicated, which
86 should signal a program-error.
87
88 * Numerous bugfixes:
89 - FFLOOR and friends preserve the sign of the arg, so -0.0 is
90 returned for negative args.
91 - EXPT sometimes returne NaN instead of 1 when the power was 0.
92 - Weak pointers don't have O(n^2) GC behavior anymore.
93 - X11 authorization changes to solve problems seen with servers
94 that don't listen to TCP connection requests.
95 - unix-read fix
96 - The compiler would give an error on deriving the result type
97 of RANDOM when the arg to RANDOM was a union type.
98 - "~*~" was not being parsed to mean a wildcard version.
99 - UNIX-GETPWUID implemented for Darwin. Needed for FILE-AUTHOR.
100 - The compiler no longer gives errors when deriving the result type of
101 coerce when converting a integer to a float that would not fit
102 in a float.
103 - Fix bug in reading from streams with element-type SIGNED-BYTE
104 for sizes greater than 32: Positive numbers were incorrectly
105 being returned as negative.
106 - REMOVE-DUPLICATES was not honoring the :START option.
107 - PPRINT-LOGICAL-BLOCK sometimes didn't close the block properly
108 because PPRINT-EXIT-IF-LIST-EXHAUSTED caused an early exit.
109 - Macro expansion was not looking in the local environment
110 properly for local definitions.
111 - Circular Weak pointers can now be printed when *print-circle*
112 is T.
113 - "foo.lisp.*" is interpreted to have version :wild, just like
114 "foo.lisp.~*~".
115 - DIRECTORY will report all versions of a file if the pathname
116 has version :wild.
117 - Fixed bug with CLX on MacOS X where the WM-SIZE-HINTS were
118 larger than CLX expected. Replaced card16 with card32.
119 - Callbacks on sparc that returned double-floats were sometimes
120 causing a sigbus error.
121
122 * Other changes:
123
124 * Improvements to the PCL implementation of CLOS:
125
126 * Improvements to Hemlock, the Emacs-like editor:
127
128 * Changes to rebuilding procedure:
129
130 * Deprecated features:
131
132 This release is not binary compatible with code compiled using CMUCL
133 19a; you will need to recompile FASL files.
134
135 See <URL:http://www.cons.org/cmucl/> for download information,
136 guidelines on reporting bugs, and mailing list details.
137
138
139 We hope you enjoy using this release of CMUCL!
140

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