/[cmucl]/src/general-info/release-19f.txt
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1 rtoy 1.1 ========================== C M U C L 19 f =============================
2    
3     The CMUCL project is pleased to announce the release of CMUCL 19f.
4     This is a major release which contains numerous enhancements and
5     bugfixes from the 19e release.
6    
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 multimethods and a metaobject 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.
16    
17     New in this release:
18    
19    
20     * Feature enhancements:
21 rtoy 1.6.2.3 - ~R supports many more cardinal names.
22 rtoy 1.6.2.3.2.1 - Updated network support:
23     o Added BIND-INET-SOCKET to bind a socket to a local address.
24     o Added OPEN-NETWORK-STREAM to create a stream connected to a given host.
25     o Added ACCEPT-NETWORK-STREAM to create a stream connected to
26     the new network connection
27     o Updated CONNECT-TO-INET-SOCKET to allow binding the newly
28     created socket to a local address
29     - Added UNIX:UNIX-OPENPTY, an interface to the openpty C library
30     function.
31 rtoy 1.6.2.3.2.2 - SSE2 support added for x86.
32     o CMUCL automatically detects whether sse2 is supported or not
33     and loads up the appropriate core file.
34     o New -fpu switch allows the user to specify explicitly which
35 rtoy 1.6.2.3.2.3 core should be used. The valid values are x87, sse2, or auto
36     (the default).
37 rtoy 1.6.2.3.2.2 o Fasls compiled with sse2 support have the extension sse2f.
38     Otherwise, the normal x86f extension is used. This allows the
39     user to do tests/experiments with both x87 and sse2 without
40     having to mess around with different directories and removing
41     fasls before building for a different FPU.
42 rtoy 1.6.2.3.2.3 o If the chip supports sse2, but CMUCL can't find the sse2 core,
43     CMUCL will try to fall back to the x87 core. (This only
44     happens if -fpu is auto.)
45     - Command line parsing now recognizes the option "--". Everything
46     after "--" is not subject to CMUCL's command line parsing, and
47     everything after the "--" is placed in the new variable
48     EXT:*COMMAND-LINE-APPLICATION-ARGUMENTS*.
49 rtoy 1.6.2.3.2.1
50 rtoy 1.1 * ANSI compliance fixes:
51 rtoy 1.3 - Fix bug in backquote printer. If the variable is @foo, we want
52     to print ", @foo" not ",@foo". Similarly, for .foo, we want to
53     print ", .foo" instead of ",.foo".
54 rtoy 1.5 - Fix merging of version in MAKE-PATHNAME. If the pathname name
55     is given, the version is not affected by the version in the
56     default pathname.
57 rtoy 1.6.2.1 - RENAME-FILE now creates defaulted-new-name from merging new-name
58     with the original filespec. This is an incompatible change from
59     the previous version which created defaulted-new-name from
60     merging the new-name with the truename of filespec. Also, a
61     logical pathname should be returned if new-name is a logical
62     pathname.
63 rtoy 1.6.2.3.2.1 - Character names need to be a capital letter followed by lower
64     case. Needed to match what ~:C does. (Found via ansi-tests).
65 rtoy 1.1
66     * Bugfixes:
67 rtoy 1.3 - Compiler can now derive the rank of an array, even if the array
68     is not simple.
69     - Fix off-by-one bug in ~R which prevents printing numbers from
70     10^63 to 10^66-1. 10^63 is a vigintillion.
71     - The compiler and interpreter should now handle slot-value the
72     same. Previously, different results were returned for things
73     like (slot-value foo :a).
74 rtoy 1.4 - UNIX-GETGRNAM is now defined for Darwin (x86 and ppc).
75 rtoy 1.5 - UNIX-GETPWUID is defined for all BSD systems.
76     - Type-derivation for EXPT no longer causes errors in some
77     situations. The computed bounds were of the wrong type for the
78     resulting type specifier.
79     - Pathname printer no longer produces an error for (MAKE-PATHNAME
80     :HOST NIL :TYPE "foo"). It returns #P(:HOST NIL :TYPE "foo")
81     now.
82     - Type derivation for DOUBLE-DOUBLE-FLOAT arithmetic should be
83     working. Previously, all arithmetic operations would just
84     return DOUBLE-DOUBLE-FLOAT even though the compiler should have
85     been able to figure out a tighter result.
86 rtoy 1.6 - When SCALE-FLOAT would underflow, it would always return 0f0,
87     instead of a floating-point zero of the correct type.
88 rtoy 1.6.2.1 - Fix some issues in creating the debug arglist string when the
89     arglist contains items that can't be printed readably.
90 rtoy 1.6.2.2 - DIRECTORY is now faster for directories with a large number of
91     files.
92 rtoy 1.6.2.3 - RANDOM is now much faster on all platforms for numbers upto
93     #xffffffff. This is an incompatible change from previous
94     releases because the numbers produced may be different from
95     before.
96     - The small bias in RANDOM for integer args up to 32 bits long
97     should now be gone.
98 rtoy 1.6.2.3.2.1 - Improved type derivation for LOGAND when one arg is bounded but
99     the other is not.
100     - Some issues with tracing on sparc and ppc have been fixed. This
101     usually manifests itself with a segfault just after the function
102     result is printed.
103     - Fixed bug on sparc where C-c sometimes causes a segfault. We
104     now handle the case where siginfo_t is NULL, which can also
105     happen on other architectures.
106     - The interpreter catches invalid EVAL-WHEN situations just like
107     the compiler, instead of silently ignoring them.
108     - FLOAT-PRECISION supports double-double floats.
109 rtoy 1.6.2.3.2.3 - Tracing should now be working on Darwin/x86. Previously,
110     certain cases would cause Lisp to segfault in bad ways where you
111     could not return to the repl. Do not need to do encapsulation
112     by default anymore.
113     - The bounds for type (REAL lo hi) are computed better now. The
114     REAL type is a union of SINGLE-FLOAT, DOUBLE-FLOAT, and
115     DOUBLE-DOUBLE-FLOAT. The computed bounds for
116     DOUBLE-DOUBLE-FLOAT only had double-float accuracy if the bound
117     for REAL was a rational.
118     - The FLOAT type now requires that the bounds, if given, are
119     floats. Previously, any real type would be accepted. This
120     makes FLOAT behave like SINGLE-FLOAT and DOUBLE-FLOAT which
121     required the bounds to be a float of the appropriate type.
122 rtoy 1.1
123     * Trac Tickets:
124 rtoy 1.6 - #16: Read-time hash-table issue
125     Fixed.
126 rtoy 1.6.2.3.2.1 - #17: LOOP NAMED NIL has no effect
127     Fixed.
128     - #18: Modular arith bug 1
129     Fixed
130     - #19: Modular arith bug 2
131     Fixed by not doing modular arith if the args are known to be
132     fixnums.
133     - #20: Modular arith bug?
134 rtoy 1.6.2.3.2.2 Fixed via the fix for Trac #21. The original workaround has
135     been removed.
136 rtoy 1.6.2.3.2.1 - #24: Float contagion for expt
137     Float contagion is applied to the arguments before computing
138     expt.
139 rtoy 1.6.2.3.2.2 - #21: Modular arith bug 3
140     Fixed by delaying the logand defoptimizer.
141     - #15: x86 double-float issue
142     Fixed when using SSE2 support. We will not fix this for x87.
143 rtoy 1.6.2.3.2.3 - #25: Compiler bug
144     Fixed.
145     - #26: slot-value type check
146     Fixed for some cases. When used in methods, slot-value may not
147     do the type check.if the object is not a argument to the method.
148     - #29: make-condition doesn't accept class objects
149     Fixed.
150 rtoy 1.1
151     * Other changes:
152 rtoy 1.6.2.3 - IS1, IS2, IS3, and IS4 are recognized character names for the
153     ASCII control codes US, RS, GS, FS, respectively.
154     - Added OPEN-NETWORK-STREAM and ACCEPT-NETWORK-STREAM functions.
155 rtoy 1.6.2.3.2.1 - When initializing a random state, try to read 627 words from
156     /dev/urandom to initialize the entire state vector with random
157     bits. Previously, only one word was read.
158     - A seed of 0 is allowed in KERNEL:INIT-RANDOM-STATE.
159     - Updated User guide to include more examples of tracing.
160     - Enable gencgc page protection on x86/darwin. This can speed up
161     GC a bit. (Not measured.)
162     - Bignum truncate is significantly faster. Some cl-bench
163     benchmarks are now almost twice as fast.
164     - The continuable error produced by raising an integer to a power
165     exceeding *intexp-maximum-exponent* is now a restart, giving the
166     user the option to continue and update the limit to the new
167     power.
168 rtoy 1.6.2.3.2.3 - The Darwin/x86 port can run on Mac OS X 10.4 or later.
169 rtoy 1.1
170     * Improvements to the PCL implementation of CLOS:
171 rtoy 1.5 - The compiler and interpreter should handle SLOT-VALUE the same
172     way. Previously, (SLOT-VALUE obj :a) would behave differently
173     in the compiler and interpreter.
174 rtoy 1.6.2.1 - Some issues with get-accessor-method-function and
175     slot-value-using-class have been fixed.
176     Get-accessor-method-function was causing an error to be signaled
177     incorrectly.
178 rtoy 1.6.2.3.2.3 - (setf (slot-value <obj> <slot>) <new>) will now signal an error
179     in some situations when the new value is not of the correct
180     declared type for slot.
181 rtoy 1.1
182 rtoy 1.3 * Changes to building procedure:
183 rtoy 1.6.2.3.2.3 - For Linux, custom CFLAGS, CC, and LDFLAGS are supported.
184     Requested by Stelian Ionescu for Gentoo support.
185     - The FreeBSD config file is now named Config.x86_freebsd, which
186     is equivalent to Config.FreeBSD_gencgc, which is deprecated.
187     - The Linux config file is now named Config.x86_linux, which is
188     the equivalent to Config.linux_gencgc, which is deprecated.
189    
190     * Known issues:
191     - Executables (via save-lisp) on recent FreeBSD versions are
192     currently not working. The executable is created, but the
193     resulting executable doesn't work correctly.
194 rtoy 1.1
195     This release is not binary compatible with code compiled using CMUCL
196 rtoy 1.3 19e; you will need to recompile FASL files.
197 rtoy 1.1
198     See <URL:http://www.cons.org/cmucl/> for download information,
199     guidelines on reporting bugs, and mailing list details.
200    
201    
202     We hope you enjoy using this release of CMUCL!
203    

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