in some circumstances.
changes in sbcl-0.8.7 relative to sbcl-0.8.6:
+ * When built with the :SB-FUTEX feature, threaded builds now take
+ advantage of the "fast userspace mutex" facility in Linux kernel 2.6
+ for faster/more reliable mutex and condition variable support.
+ * Incompatible change (but one you probably shouldn't have been using
+ anyway): the interface and code for arbitrating between multiple
+ threads in the same user session has been redesigned.
* bug fix: GET-SETF-EXPANSION no longer throws an internal type
error when called without an explicit environment argument.
(thanks to Nikodemus Siivola)
* bug fix: buffered :DIRECTION :IO streams are less likely to become
confused about their position. (thanks to Adam Warner and Gerd
Moellmann)
+ * bug fix: Pretty printing backquoted forms with unquotations in the
+ argument list position of various code constructs such as LAMBDA
+ now works correctly. (reported by Paul Dietz)
+ * bug fix: Pretty printing unquotations no longer loses all
+ stream position information.
+ * optimization: performance of string output streams is now less
+ poor for multiple small sequence writes.
+ * optimization: performance of CSUBTYPEP in the presence of complex
+ expressions involving CONS and NOT many times has been improved.
+ (reported by Paul Dietz)
* ASDF-INSTALL bug fix: now parses *PROXY* properly. (thanks to
Sean Ross)
* SB-SIMPLE-STREAMS enhancement: simple-streams can now be used as
streams for the REPL, for the debugger, and so on. (thanks to
David Licteblau)
+ * DEFINE-CODITION is more efficient. (thanks to Brian Mastenbrook)
* fixed some bugs revealed by Paul Dietz' test suite:
** the value of the :REHASH-THRESHOLD argument to MAKE-HASH-TABLE
is ignored if it is too small, rather than propagating through
** extremely complex negations of CONS types were not being
sufficiently canonicalized, leading to inconsistencies in
SUBTYPEP.
+ ** VALUES tranformer lost derived type.
+
+changes in sbcl-0.8.8 relative to sbcl-0.8.7:
+ * bug fix: DECODE-UNIVERSAL-TIME now accepts timezone arguments with
+ second-resolution: integer multiples of 1/3600 between -24 and 24.
+ (thanks to Vincent Arkesteijn)
+ * optimization: implemented multiplication as a modular
+ (UNSIGNED-BYTE 32) operation on the x86 backend.
+ * bug fix: functions =, /=, <, <=, >, >= did not check the argument
+ type when called with 1 argument; PEEK-CHAR checked type of
+ PEEK-TYPE only after having read first character from a
+ stream. (reported by Peter Graves)
planned incompatible changes in 0.8.x:
* (not done yet, but planned:) When the profiling interface settles