/[cmucl]/src/general-info/release-19b.txt
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Contents of /src/general-info/release-19b.txt

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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
44 * Numerous ANSI compliance fixes:
45 - FILE-AUTHOR should signal errors appropriately.
46 - CMUCL was computing the wrong value for some special functions
47 when the argument was on the branch cut for the function.
48 - MULTIPLE-VALUE-BIND accepts &REST and friends in the var list.
49 - When constructing logical pathnames, all components will be
50 automatically upcased. Needed for print/read consistency, and
51 fixes an issue with ASDF and logical pathnames.
52 - Numerous fixes to the float printer, including a new float
53 printer.
54 - Justification (~< ~>) works better.
55 - ~V with the value of NIL in format strings is treated to mean
56 as if it weren't given at all, as specified by ANSI CL.
57 - Characters print consistently with ~:C and ~S.
58 - Numerous bug fixes for pretty-printing and format strings.
59 - Pathnames are now printed with #P instead of #p.
60 - The types COMPLEX and (COMPLEX REAL) are the same now.
61 - UPGRADED-COMPLEX-PART-TYPE returns RATIONAL for integer types
62 now. (CMUCL doesn't really have a (COMPLEX INTEGER) type).
63 - When a pathname can't be printed readably, signal a
64 PRINT-NOT-READABLE condition
65
66 * Numerous bugfixes:
67 - FFLOOR and friends preserve the sign of the arg, so -0.0 is
68 returned for negative args.
69 - EXPT sometimes returne NaN instead of 1 when the power was 0.
70 - Weak pointers don't have O(n^2) GC behavior anymore.
71 - X11 authorization changes to solve problems seen with servers
72 that don't listen to TCP connection requests.
73 - unix-read fix
74 - The compiler would give an error on deriving the result type
75 of RANDOM when the arg to RANDOM was a union type.
76 - "~*~" was not being parsed to mean a wildcard version.
77 - If a pathname has a version, but no name, we can't print it
78 readably.
79 - UNIX-GETPWUID implemented for Darwin. Needed for FILE-AUTHOR.
80 - The compiler no longer gives errors when deriving the result type of
81 coerce when converting a integer to a float that would not fit
82 in a float.
83 - Fix bug in reading from streams with element-type SIGNED-BYTE
84 for sizes greater than 32: positive numbers were incorrectly
85 being returned as negative.
86
87 * Other changes:
88
89 * Improvements to the PCL implementation of CLOS:
90
91 * Improvements to Hemlock, the Emacs-like editor:
92
93 * Changes to rebuilding procedure:
94
95 * Deprecated features:
96
97 This release is not binary compatible with code compiled using CMUCL
98 19a; you will need to recompile FASL files.
99
100 See <URL:http://www.cons.org/cmucl/> for download information,
101 guidelines on reporting bugs, and mailing list details.
102
103
104 We hope you enjoy using this release of CMUCL!
105

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