;;;; -*- coding: utf-8; -*-
+changes in sbcl-1.0.20 relative to 1.0.19:
+ * minor incompatible change: OPTIMIZE qualities
+ SB-C::STACK-ALLOCATE-DYNAMIC-EXTENT, SB-C::STACK-ALLOCATE-VECTOR,
+ and SB-C::STACK-ALLOCATE-VALUE-CELLS no longer exist. See documentation
+ and SB-EXT:*STACK-ALLOCATE-DYNAMIC-EXTENT* for details.
+ * documentation: some slot access efficiency guidelines have been
+ added to the user manual.
+ * optimization: ASSOC-IF, ASSOC-IF-NOT, MEMBER-IF, MEMBER-IF-NOT,
+ RASSOC, RASSOC-IF, and RASSOC-IF-NOT are now equally efficient
+ as ASSOC and MEMEBER.
+ * optimization: calls to ASSOC, MEMBER, and RASSOC can be transformed
+ to more efficient EQ-comparison versions more often.
+ * optimization: enhanced derivation of DOLIST iteration variable type
+ for constant lists.
+ * optimization: constant folding of simple (LIST ...) forms as DOLIST
+ arguments.
+ * optimization: runtime lookup of function definitions can be
+ elided in more cases, eg: (let ((x 'foo)) (funcall foo)).
+ * optimization: compiler is able to derive the return type of
+ (AREF (THE STRING X) Y) as being CHARACTER.
+ * optimization: CLRHASH on empty hash-tables no longer does pointless
+ work. (thanks to Alec Berryman)
+ * optimization: REPLACE deftransforms don't punt when :START1 or
+ :START2 is given
+ * bug fix: bogus odd-number-of-keywords STYLE-WARNINGs from calls to
+ functions with an odd number of &OPTIONAL arguments, a &REST
+ argument, and one or more &KEY arguments at the call site.
+ * bug fix: STYLE-WARNINGs for functions with both &OPTIONAL and &KEY
+ arguments appeared at call sites as well.
+ * bug fix: fixed #425; CLOSE drops input buffers from streams, so
+ READ-LINE &co can no longer read from them afterwards. (reported
+ by Damien Cassou)
+ * bug fix: fixed #427: unused local aliens no longer cause compiler
+ breakage. (reported by Stelian Ionescu, Andy Hefner and Stanislaw
+ Halik)
+ * bug fix: non-local exit from a WITH-ALIEN form no longer causes
+ alien-stack leakage. (reported by Andy Hefner)
+ * bug fix: PROGV signals an error when an attempt to violate declared
+ type of a variable or bind a constant is made.
+ * bug fix: SET signals an error when an attempt to violate declared
+ type of a variable is made.
+ * bug fix: restart computation during the execution of a restart
+ test function no longer causes infinite recursion. (reported by
+ Michael Weber)
+ * bug fix: calling SB-COVER:REPORT with a non-directory pathname now
+ signals an error. (thanks to Pierre Mai)
+ * bug fix: EXPORT left symbol unexported in conflict situations.
+ (thanks to Michael Weber)
+ * bug fix: correctly handle name conflicts involving CL:NIL.
+ (thanks to Michael Weber)
+ * bug fix: RESOLVE-CONFLICT restart for name conflicts handles
+ conflicts arising from USEing package with conflicting symbols
+ correctly. (thanks to Michael Weber)
+
changes in sbcl-1.0.19 relative to 1.0.18:
+ * new feature: user-customizable variable SB-EXT:*MUFFLED-WARNINGS*;
+ warnings that go otherwise unhandled will be muffled if they are
+ of the type that's the value of this variable.
* optimization: stack allocation is slightly more efficient on x86
and x86-64.
+ * bug fix: DEFSTRUCT forms with user-specified :CONSTRUCTOR options,
+ where a raw slot always is initialized using the initform whose
+ type is not know sufficiently well a compile-time are now compiled
+ correctly. (reported by John Morrison)
* bug fix: compiler no longer makes erronous assumptions in the
presense of non-foldable SATISFIES types.
* bug fix: stack analysis missed cleanups of dynamic-extent
arguments in non-let-converted calls to local functions.
+ * improvements to the Windows port:
+ ** adjusted address spaces for building on both Win32 and
+ Win64. (thanks for John Connors)
* fixed some bugs revealed by Paul Dietz' test suite:
** interval arithmetic during type derivation used inexact integer
to single-float coercions.