/[cmucl]/src/general-info/release-20c.txt
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Contents of /src/general-info/release-20c.txt

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Wed Oct 27 12:49:09 2010 UTC (3 years, 5 months ago) by rtoy
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1 rtoy 1.1 ========================== C M U C L 20 c =============================
2    
3     [--- WORK IN PROGRESS ---]
4    
5     The CMUCL project is pleased to announce the release of CMUCL 20c.
6     This is a major release which contains numerous enhancements and
7     bug fixes from the 20b 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 multi-methods and a meta-object 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     * Known issues:
22    
23 rtoy 1.4 * Feature enhancements
24 rtoy 1.2 - Update to Unicode 5.2.0.
25 rtoy 1.3 - Add support for character name completion. This can be used by
26     Slime to do character name completion.
27 rtoy 1.1
28 rtoy 1.4 * Changes
29     - COMPILE-FILE now accepts a :DECODING-ERROR argument that
30     indicates how to handle decoding errors when reading the file.
31     It has the same meaning and effect as the :DECODING-ERROR
32     argument to OPEN. This defaults to T here so that decoding
33     errors are signaled on invalid sequences instead of silently
34     replacing the bad sequence with some kind of replacement
35     character.
36 rtoy 1.5 - In 19f through 20b, READ-SEQUENCE could read mostly arbitrary
37     data from a stream in to the given sequence. In this release,
38     READ-SEQUENCE cannot do that unless the stream is a
39     binary-text-stream. This is an incompatible change from
40     previous releases.
41 rtoy 1.6 - RUN-PROGRAM accepts :EXTERNAL-FORMAT parameter to specify the
42     external format to be used for any streams that RUN-PROGRAM
43     needs to create.
44 rtoy 1.4
45 rtoy 1.1 * ANSI compliance fixes:
46 rtoy 1.5 - Fixes for signaling errors with READ-CHAR and READ-BYTE
47     o READ-CHAR signals errors if the stream is not a character
48     stream. This is a change from 20a and 20b, but matches
49     releases before 19f. (Almost. 19f allowed reading characters
50     from (unsigned-byte 8) streams. 19e did not.)
51     o READ-BYTE signals errors if the stream is not a binary
52     stream. This is also a change from 20a and 20b, but matches
53     releases before 19f. (Almost. 19f allowed reading bytes from
54     character streams. 19e did not.)
55     o But READ-CHAR and READ-BYTE will work if the stream class is
56     'binary-text-stream, an extension for bivalent streams in
57     CMUCL. READ-CHAR will use the specified external format for
58     such streams. READ-BYTE reads (unsigned-byte 8) elements from
59     such streams.
60 rtoy 1.1 * Bugfixes:
61 rtoy 1.2 - The pairwise composition table is now correctly built.
62     Previously, it skipped over non-BMP codepoints. This also
63     requires a fix in %COMPOSE to handle non-BMP codepoints
64     correctly. The normalization test now passes.
65    
66 rtoy 1.1 * Trac Tickets:
67    
68     * Other changes:
69    
70     * Improvements to the PCL implementation of CLOS:
71    
72     * Changes to building procedure:
73    
74     This release is not binary compatible with code compiled using CMUCL
75     20b; you will need to recompile FASL files.
76    
77     See <URL:http://www.cons.org/cmucl/> for download information,
78     guidelines on reporting bugs, and mailing list details.
79    
80    
81     We hope you enjoy using this release of CMUCL!

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