;;;; -*- coding: utf-8; -*-
+changes in sbcl-1.0.12 relative to sbcl-1.0.11:
+ * new feature: MAKE-HASH-TABLE now experimentally accepts a
+ :SYNCHRONIZED argument, which makes the hash-table safe for
+ concurrent accesses (but not iteration.) See also:
+ SB-EXT:WITH-LOCKED-HASH-TABLE, and
+ SB-EXT:HASH-TABLE-SYNCHRONIZED-P.
+ * bug fix: SB-SYS:WITH-PINNED-OBJECTS could cause garbage values to
+ be returned from its body when the values were being returned
+ using unknown-values return convection and the W-P-O was wrapped
+ inside an UNWIND-PROTECT.
+ * bug fix: sb-posix should now compile again under Windows, enabling
+ slime to work again.
+
+changes in sbcl-1.0.11 relative to sbcl-1.0.10:
+ * incompatible change: hash-table accessor functions are no longer
+ automatically protected by locks. Concurrent accesses on the same hash-table
+ from multiple threads can give inconsistent results or even corrupt the
+ hash-table completely. Multi-threaded applications should do their own
+ locking at the correct granularity. In the current implementation it is
+ still safe to have multiple readers access the same table, but it's not
+ guaranteed that this property will be maintained in future releases.
+ * minor incompatible change: (SETF MUTEX-VALUE) is not longer supported,
+ and will signal an error at runtime.
+ * enhancement: SB-THREAD package now exports a semaphore interface.
+ * enhancement: CONS can now stack-allocate on x86 and
+ x86-64. (Earlier LIST and LIST* supported stack-allocation, but
+ CONS did not.)
+ * enhancement: nested lists can now be stack allocated on
+ platforms providing stack allocation support.
+ * enhancement: dynamic-extent support has been extended to support
+ cases where there are multiple possible sources for the stack
+ allocated value.
+ * optimization: RELEASE-MUTEX no longer needs to perform a syscall
+ if the mutex is uncontested on Linux.
+ * bug fix: symbol-macro expansion now uses the *MACROEXPAND-HOOK*
+ as specified by the CLHS. (thanks to Tobias Rittweiler)
+ * bug fix: NaN comparison now works on x86-64.
+ * bug fix: CLOSE :ABORT T on a stream with pending output now
+ works.
+ * bug fix: instances of non-standard metaclasses using standard
+ instance structure protocol sometimes missed the slot type checks
+ in safe code.
+ * bug fix: known functions can be inlined in high-debug code.
+
+changes in sbcl-1.0.10 relative to sbcl-1.0.9:
+ * minor incompatible change: the MSI installer on Windows no longer
+ associates .lisp and .fasl files with the installed SBCL.
+ * minor incompatible change: :UNIX is no longer present in *FEATURES*
+ on Windows. (thanks to Luis Oliviera)
+ * new feature: SB-CLTL2 contrib module now implements
+ FUNCTION-INFORMATION. (thanks to Larry D'Anna)
+ * optimization: scavenging weak pointers is now more efficient,
+ requiring O(1) instead of O(N) per weak pointer to identify
+ scanvenged vs. unscavenged pointers. (thanks to Paul Khuong)
+ * optimization: typechecking (SETF SLOT-VALUE) is now ~5x faster in
+ method bodies using constant slot-names when the first argument is
+ a specializer parameter for the method.
+ * optimization: SLOT-VALUE &co are now ~50% faster for variable slot
+ names, when the class of the instance is a direct instance
+ STANDARD-CLASS or FUNCALLABLE-STANDARD-CLASS (making them only 3x
+ as slow as the constant slot-name case.)
+ * optimization: member type construction is now O(N) instead
+ of O(N^2).
+ * optimization: UNION and NUNION are now O(N+M) for large
+ inputs as long as the :TEST function is one of EQ, EQL, EQUAL, or
+ EQUALP.
+ * enhancement: DEFINE-MODIFY-MACRO lambda-list information is
+ now more readable in environments like Slime which display it.
+ (thanks to Tobias C. Rittweiler)
+ * bug fix: SB-EXT:COMPARE-AND-SWAP was non-atomic unless the compiler
+ was able to infer the correct argument type for the object on which
+ the CAS operation was being performed.
+ * bug fix: copy propagation interfered with parallel assignment
+ semantics in local calls. (reported by Paul Khuong)
+ * bug fix: the signed modular fixnum shift compiled to wrong code on
+ x86 and x86-64. (spotted by a slight modification to some of
+ PFD's random tests)
+
+changes in sbcl-1.0.9 relative to sbcl-1.0.8:
+ * minor incompatible change: SB-SYS:OUTPUT-RAW-BYTES is deprecated.
+ * enhancement: SB-EXT:FINALIZE accepts a :DONT-SAVE keyword argument,
+ indicating the finalizer should be cancelled when SAVE-LISP-AND-DIE
+ is called.
+ * enhancement: default PRINT-OBJECT methods for classes, slot-definitions,
+ and generic function now print the object identity for anonymous
+ instances. (thanks to Attila Lendvai)
+ * enhancement: as an extension to MOP, SBCL now supports SETF of
+ STANDARD-INSTANCE-ACCESS and FUNCALLABLE-STANDARD-INSTANCE-ACCESS.
+ (thanks to Attila Lendvai)
+ * enhancement: sb-cover has an alternate annotation mode which puts
+ the form annotations at the car of the form, instead of annotating
+ it completely. The benefit of this mode is that it shows better
+ which forms were instrumented by the compiler.
+ * bug fix: new compiler transforms for MEMBER and ASSOC were affected
+ by printer control variables. (reported by Dan Corkill)
+ * bug fix: system leaked memory when delayed output was performed by
+ the OS in smaller chunks then expected. (thanks to David Smith)
+ * bug fix: system leaked memory when file streams were not closed
+ properly.
+ * bug fix: large objects written to slow streams that were modified
+ after the write could end up with the modified state written to
+ the underlying file descriptor.
+ * bug fix: multiple threads operating in parallel on the same stream
+ could cause buffer-overflows.
+ * bug fix: source location information is stored correctly
+ (broken since 1.0.6). This bug would generally show up as the
+ Slime debugger higlighting the wrong form when the sldb-show-source
+ command was used.
+ * bug fix: Branch forms are again annotated as branches in the sb-cover
+ annotations.
+ * bug fix: GCD on MOST-NEGATIVE-FIXNUM no longer causes an infinite loop
+ on x86-64. (reported by Gregory Vanuxem)
+ * bug fix: EQUALP could return wrong results for structures with raw
+ slots (slots with a :TYPE of SINGLE-FLOAT, DOUBLE-FLOAT, or a machine
+ word). (reported by Vjacheslav Fyodorov)
+ * bug fix: sb-sprof sampling didn't work on non-x86oid platforms. (patch
+ by Pierre Mai)
+
changes in sbcl-1.0.8 relative to sbcl-1.0.7:
+ * enhancement: experimental macro SB-EXT:COMPARE-AND-SWAP provides
+ atomic compare-and-swap operations on threaded platforms.
* enhancement: experimental function SB-EXT:RESTRICT-COMPILER-POLICY
allows assining a global minimum value to optimization qualities
(overriding proclamations and declarations).
and x86-64.
* performance bug fix: GETHASH and (SETF GETHASH) are once again
non-consing.
+ * optimization: slot definition lookup is now O(1). This speeds up
+ eg. SLOT-VALUE and (SETF SLOT-VALUE) with variable slot names.
+ * optimization: STRING-TO-OCTETS is now up to 60% faster for UTF-8.
+ * optimization: ASSOC and MEMBER can now be open-coded for all
+ combinations of keyword arguments when second argument is constant
+ and SPEED >= SPACE. In other cases a specialized version is
+ selected.
+ * bug fix: using obsoleted structure instances with TYPEP and
+ generic functions now signals a sensible error.
+ * bug fix: threads waiting on GET-FOREGROUND can be interrupted.
+ (reported by Kristoffer Kvello)
* bug fix: backtrace construction is now more careful when making
lisp-objects from pointers on the stack, to avoid creating bogus
objects that can be seen by the GC.
+ * bug fix: defaulting of values in contexts expecting more than 7
+ variables now works on x86-64. (reported by Christopher Laux)
+ * bug fix: modifications to packages (INTERN, EXPORT, etc) are now
+ thread safe.
+ * bug fix: (SETF SYMBOL-PLIST) no longer allows assigning a non-list
+ as the property-list of a symbol.
+ * bug fix: DEFMETHOD forms with CALL-NEXT-METHOD in the method body,
+ in EVAL-WHEN forms with both :COMPILE-TOPLEVEL and :LOAD-TOPLEVEL
+ situations requested, are once again file-compileable. (reported
+ by Sascha Wilde)
changes in sbcl-1.0.7 relative to sbcl-1.0.6:
* MOP improvement: support for user-defined subclasses of
projects / sbcl.git / blobdiff