/[cmucl]/src/general-info/release-19f.txt
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1 rtoy 1.1 ========================== C M U C L 19 f =============================
2    
3     [--- WORK IN PROGRESS ---]
4    
5     The CMUCL project is pleased to announce the release of CMUCL 19f.
6     This is a major release which contains numerous enhancements and
7     bugfixes from the 19e 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    
22     * Feature enhancements:
23 rtoy 1.14 - ~R supports many more cardinal names.
24 rtoy 1.16 - Updated network support:
25     o Added BIND-INET-SOCKET to bind a socket to a local address.
26     o Added OPEN-NETWORK-STREAM to create a stream connected to a given host.
27     o Added ACCEPT-NETWORK-STREAM to create a stream connected to
28     the new network connection
29     o Updated CONNECT-TO-INET-SOCKET to allow binding the newly
30     created socket to a local address
31 rtoy 1.21 - Added UNIX:UNIX-OPENPTY, an interface to the openpty C library
32     function.
33 rtoy 1.23 - SSE2 support added for x86.
34     o CMUCL automatically detects whether sse2 is supported or not
35     and loads up the appropriate core file.
36     o New -fpu switch allows the user to specify explicitly which
37 rtoy 1.26 core should be used. The valid values are x87, sse2, or auto
38     (the default).
39 rtoy 1.23 o Fasls compiled with sse2 support have the extension sse2f.
40     Otherwise, the normal x86f extension is used. This allows the
41     user to do tests/experiments with both x87 and sse2 without
42     having to mess around with different directories and removing
43     fasls before building for a different FPU.
44 rtoy 1.26 o If the chip supports sse2, but CMUCL can't find the sse2 core,
45     CMUCL will try to fall back to the x87 core. (This only
46     happens if -fpu is auto.)
47 rtoy 1.28 - Command line parsing now recognizes the option "--". Everything
48     after "--" is not subject to CMUCL's command line parsing, and
49     everything after the "--" is placed in the new variable
50     EXT:*COMMAND-LINE-APPLICATION-ARGUMENTS*.
51 rtoy 1.16
52 rtoy 1.1 * ANSI compliance fixes:
53 rtoy 1.3 - Fix bug in backquote printer. If the variable is @foo, we want
54     to print ", @foo" not ",@foo". Similarly, for .foo, we want to
55     print ", .foo" instead of ",.foo".
56 rtoy 1.5 - Fix merging of version in MAKE-PATHNAME. If the pathname name
57     is given, the version is not affected by the version in the
58     default pathname.
59 rtoy 1.10 - RENAME-FILE now creates defaulted-new-name from merging new-name
60     with the original filespec. This is an incompatible change from
61     the previous version which created defaulted-new-name from
62     merging the new-name with the truename of filespec. Also, a
63     logical pathname should be returned if new-name is a logical
64     pathname.
65 rtoy 1.17 - Character names need to be a capital letter followed by lower
66     case. Needed to match what ~:C does. (Found via ansi-tests).
67 rtoy 1.1
68     * Bugfixes:
69 rtoy 1.3 - Compiler can now derive the rank of an array, even if the array
70     is not simple.
71     - Fix off-by-one bug in ~R which prevents printing numbers from
72     10^63 to 10^66-1. 10^63 is a vigintillion.
73     - The compiler and interpreter should now handle slot-value the
74     same. Previously, different results were returned for things
75     like (slot-value foo :a).
76 rtoy 1.4 - UNIX-GETGRNAM is now defined for Darwin (x86 and ppc).
77 rtoy 1.5 - UNIX-GETPWUID is defined for all BSD systems.
78     - Type-derivation for EXPT no longer causes errors in some
79     situations. The computed bounds were of the wrong type for the
80     resulting type specifier.
81     - Pathname printer no longer produces an error for (MAKE-PATHNAME
82     :HOST NIL :TYPE "foo"). It returns #P(:HOST NIL :TYPE "foo")
83     now.
84     - Type derivation for DOUBLE-DOUBLE-FLOAT arithmetic should be
85     working. Previously, all arithmetic operations would just
86     return DOUBLE-DOUBLE-FLOAT even though the compiler should have
87     been able to figure out a tighter result.
88 rtoy 1.6 - When SCALE-FLOAT would underflow, it would always return 0f0,
89     instead of a floating-point zero of the correct type.
90 rtoy 1.7 - Fix some issues in creating the debug arglist string when the
91     arglist contains items that can't be printed readably.
92 rtoy 1.11 - DIRECTORY is now faster for directories with a large number of
93     files.
94 rtoy 1.14 - RANDOM is now much faster on all platforms for numbers upto
95 rtoy 1.12 #xffffffff. This is an incompatible change from previous
96     releases because the numbers produced may be different from
97     before.
98 rtoy 1.14 - The small bias in RANDOM for integer args up to 32 bits long
99     should now be gone.
100 rtoy 1.17 - Improved type derivation for LOGAND when one arg is bounded but
101     the other is not.
102 rtoy 1.18 - Some issues with tracing on sparc and ppc have been fixed. This
103     usually manifests itself with a segfault just after the function
104     result is printed.
105     - Fixed bug on sparc where C-c sometimes causes a segfault. We
106     now handle the case where siginfo_t is NULL, which can also
107     happen on other architectures.
108 rtoy 1.19 - The interpreter catches invalid EVAL-WHEN situations just like
109     the compiler, instead of silently ignoring them.
110 rtoy 1.22 - FLOAT-PRECISION supports double-double floats.
111 rtoy 1.25 - Tracing should now be working on Darwin/x86. Previously,
112     certain cases would cause Lisp to segfault in bad ways where you
113     could not return to the repl.
114 rtoy 1.27 - The bounds for type (REAL lo hi) are computed better now. The
115     REAL type is a union of SINGLE-FLOAT, DOUBLE-FLOAT, and
116     DOUBLE-DOUBLE-FLOAT. The computed bounds for
117     DOUBLE-DOUBLE-FLOAT only had double-float accuracy if the bound
118     for REAL was a rational.
119     - The FLOAT type now requires that the bounds, if given, are
120     floats. Previously, any real type would be accepted. This
121     makes FLOAT behave like SINGLE-FLOAT and DOUBLE-FLOAT which
122     required the bounds to be a float of the appropriate type.
123 rtoy 1.1
124     * Trac Tickets:
125 rtoy 1.6 - #16: Read-time hash-table issue
126     Fixed.
127 rtoy 1.15 - #17: LOOP NAMED NIL has no effect
128     Fixed.
129 rtoy 1.17 - #18: Modular arith bug 1
130     Fixed
131     - #19: Modular arith bug 2
132     Fixed by not doing modular arith if the args are known to be
133     fixnums.
134     - #20: Modular arith bug?
135 rtoy 1.24 Fixed via the fix for Trac #21. The original workaround has
136     been removed.
137 rtoy 1.20 - #24: Float contagion for expt
138     Float contagion is applied to the arguments before computing
139     expt.
140 rtoy 1.24 - #21: Modular arith bug 3
141     Fixed by delaying the logand defoptimizer.
142     - #15: x86 double-float issue
143     Fixed when using SSE2 support. We will not fix this for x87.
144 rtoy 1.25 - #25: Compiler bug
145     Fixed.
146     - #26: slot-value type check
147     Fixed for some cases. When used in methods, slot-value may not
148     do the type check.if the object is not a argument to the method.
149 rtoy 1.1
150     * Other changes:
151 rtoy 1.13 - IS1, IS2, IS3, and IS4 are recognized character names for the
152     ASCII control codes US, RS, GS, FS, respectively.
153     - Added OPEN-NETWORK-STREAM and ACCEPT-NETWORK-STREAM functions.
154 rtoy 1.17 - When initializing a random state, try to read 627 words from
155     /dev/urandom to initialize the entire state vector with random
156     bits. Previously, only one word was read.
157     - A seed of 0 is allowed in KERNEL:INIT-RANDOM-STATE.
158 rtoy 1.18 - Updated User guide to include more examples of tracing.
159     - Enable gencgc page protection on x86/darwin. This can speed up
160     GC a bit. (Not measured.)
161 rtoy 1.20 - Bignum truncate is significantly faster. Some cl-bench
162     benchmarks are now almost twice as fast.
163     - The continuable error produced by raising an integer to a power
164     exceeding *intexp-maximum-exponent* is now a restart, giving the
165     user the option to continue and update the limit to the new
166     power.
167 rtoy 1.29 - The Darwin/x86 port can run on Mac OS X 10.4 or later.
168 rtoy 1.18
169 rtoy 1.1 * Improvements to the PCL implementation of CLOS:
170 rtoy 1.5 - The compiler and interpreter should handle SLOT-VALUE the same
171     way. Previously, (SLOT-VALUE obj :a) would behave differently
172     in the compiler and interpreter.
173 rtoy 1.9 - Some issues with get-accessor-method-function and
174     slot-value-using-class have been fixed.
175     Get-accessor-method-function was causing an error to be signaled
176     incorrectly.
177 rtoy 1.25 - (setf (slot-value <obj> <slot>) <new>) will now signal an error
178     in some situations when the new value is not of the correct
179     declared type for slot.
180 rtoy 1.1
181 rtoy 1.3 * Changes to building procedure:
182 rtoy 1.29 - For Linux, custom CFLAGS, CC, and LDFLAGS are supported.
183     Requested by Stelian Ionescu for Gentoo support.
184     - The FreeBSD config file is now named Config.x86_freebsd, which
185     is equivalent to Config.FreeBSD_gencgc.
186 rtoy 1.1
187     This release is not binary compatible with code compiled using CMUCL
188 rtoy 1.3 19e; you will need to recompile FASL files.
189 rtoy 1.1
190     See <URL:http://www.cons.org/cmucl/> for download information,
191     guidelines on reporting bugs, and mailing list details.
192    
193    
194     We hope you enjoy using this release of CMUCL!
195    

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