1 ========================== C M U C L 20 d =============================
3 The CMUCL project is pleased to announce the release of CMUCL 20d.
4 This is a major release which contains numerous enhancements and
5 bug fixes from the 20c release.
7 CMUCL is a free, high performance implementation of the Common Lisp
8 programming language which runs on most major Unix platforms. It
9 mainly conforms to the ANSI Common Lisp standard. CMUCL provides a
10 sophisticated native code compiler; a powerful foreign function
11 interface; an implementation of CLOS, the Common Lisp Object System,
12 which includes multi-methods and a meta-object protocol; a source-level
13 debugger and code profiler; and an Emacs-like editor implemented in
14 Common Lisp. CMUCL is maintained by a team of volunteers collaborating
15 over the Internet, and is mostly in the public domain.
21 * Feature enhancements
22 * Added a new contrib, "contrib-packed-sse2" to allow packed
23 operations ala SSE2. Support for some packed sse2 operations
24 like multiply, divide, and shuffle for both packed singles and
25 doubles. All operations are done on top of (complex
26 double-float) numbers. Utility functions are provided to set
27 and access these packed numbers.
28 * Added external format for EUC-KR.
31 * ASDF2 updated to version 2.24.
32 * Behavior of STRING-TO-OCTETS has changed. This is an
33 incompatible change from the previous version but should be more
34 useful when a buffer is given which is not large enough to hold
35 all the octets for the given string. See docstring for more
37 * The PowerPC port of CMUCL on Darwin (Mac OS X) has been revived
38 and is roughly up-to-date. It will run on OSX 10.4 and 10.5.
39 However, only the Unicode build is supported.
40 * Updated to Unicode 6.1.0.
41 * Many additional aliases for external formats added that match
42 the glibc iconv aliases.
43 * Implement faster LOGCOUNT function on x86, if :SSE3 feature is
44 available. (Only applies to new uses of LOGCOUNT. The core
45 uses the default version.)
46 * On x86, SET-FLOATING-POINT-MODES clears any current and accrued
47 exceptions that match exceptions in :TRAPS. Previously,
48 enabling a trap when the current exception also listed that trap
49 caused the exception to be immediately signaled. This no longer
50 happens and now matches how ppc and sparc behave.
51 * OSX Lion and XCode 4 can now compile cmucl without problems.
52 * OSX 10.4 is no longer supported.
53 * Micro optimizations for floats: 2*x -> x+x and x/2^n ->
55 * Add VM::WITH-CYCLE-COUNTER to return the number of cycles elapsed
56 when executing the body, as measured by the CPU cycle/tick counter.
58 * ANSI compliance fixes:
59 * CMUCL was not printing pathnames like (make-pathname :directory
60 '(:absolute "tmp" "" "/")) correctly. This is now printed using
64 * DECODE-FLOAT was not correctly declared and could not be
65 compiled to handle double-double-floats.
66 * The source distribution now includes the scripts from the bin
67 directory, which was previously missing.
68 * The stack needs to be 16-byte aligned on Darwin.
69 * LDB no longer prints prompts forever when EOF is reached.
70 * LISP:UNICODE-COMPLETE now longer signals an error if the prefix
71 isn't a prefix of the name of any Unicode character. Nil is
73 * Some VOP costs were incorrect which prevented the fast complex
74 double-float multiplier from being used when sse3 is available.
75 * External format for UTF-32 was generating an error when
76 converting octets to a string.
77 * The UTF-16-BE and UTF-16-LE external formats were returning the
78 incorrect number of octets when surrogates pairs were decoded.
79 This confuses the stream buffering code.
80 * Fix typo in ISO8859-2 external format that caused it not to work
81 correctly. This type potentially also caused failures for all other
82 external formats that were based on ISO8859-2.
83 * COMPILE-FILE should not signal an error when given a list for
84 :EXTERNAL-FORMAT. Lists are needed to specify a composing
85 external format like :DOS or :MAC.
86 * EXPORT and friends should not EVAL the form when compiling.
87 This was probably a leftover from the time when CMUCL did not
88 have DEFPACKAGE. (See ticket:60.)
89 * The debugger was not always opening the file in the correct
90 external format. It defaulted to using
91 *DEFAULT-EXTERNAL-FORMAT* instead of the format used when
93 * Minor build issue in CLM debugger interface due to USE-PACKAGE
94 no longer having special compiler treatment.
95 * READ-CYCLE-COUNTER no longer destroys any live values in the EBX
99 * #50: Print/read error with make-pathname.
100 * #53: UTF-8 in core.
101 * #52: UNICODE-COMPLETE-NAME misses a completion.
102 * #55: blocked signals.
103 * #58: UTF-16 buffering problem.
104 * #60: compile-file and export problem
105 * #61: Darwin+clang doesn't produce a working lisp
108 * The layout of the cmucl directories has been changed.
109 * Add -R option to build.sh to force recompiling the C
110 runtime. (Default it to compile only what is changed.)
111 * Add -R option to build-all.sh to force recompiling the C
114 * Improvements to the PCL implementation of CLOS:
116 * Changes to building procedure:
118 This release is not binary compatible with code compiled using CMUCL
119 20c; you will need to recompile FASL files.
121 See <URL:http://www.cmucl.org> or
122 <URL:http://trac.common-lisp.net/cmucl> for download information,
123 guidelines on reporting bugs, and mailing list details.
126 We hope you enjoy using this release of CMUCL!