New in version 1.3.12
* enhancement: on x86-64, compiled functions loaded from fasl
files can not be moved, but can be freed, by GC.
Additionally, COMPILE will produce immobile code
if SB-C::*COMPILE-TO-MEMORY-SPACE* is set to :IMMOBILE.
(Caution: the flag is experimental and subject to change.)
The benefits are better physical separation of code from
data, and potentially easier examination of live images by
external tools.
* enhancement: the docstring for SAVE-LISP-AND-DIE has been
amended to say that the :ROOT-STRUCTURES parameter is not
meaningless on gencgc, depending on the platform.
* bug fix: calling a named function (e.g. a DEFUN) concurrently
with redefining that same function could lead to execution of
random bytes.
* bug fix: yes-or-no-p accepts formatter functions (#1639490)
* bug fix: better handling of exceptions on macOS.
New in version 1.3.11
* minor incompatible change: SB-EXT:*INTEXP-MAXIMUM-EXPONENT*
is removed.
* enhancement: TRACE ... :REPORT {TRACE,NIL} now work as
advertised in the documentation string (based on patch by
Patrick Stein)
* enhancement: support unboxed signed-word structure slots on
x86, x86-64 and ARM64. (#377616)
* optimization: faster logical bit-array operations on
multidimensional arrays.
* optimization: better GC performance in the presence of many
threads. (patch by Ilya Perminov, #1339924)
* optimization: multiple-value-call is optimized with multiple
argument forms, not just one. (#753803)
* bug fix: MAKE-ALIEN-STRING returns the number of allocated
bytes as a second value as advertised (reported by Johann
'Myrkraverk' Oskarsson)
* bug fix: when TO-READTABLE is supplied to COPY-READTABLE, it
will contain only the macros in FROM-READTABLE and no others.
(#1631506)
* enhancement: gencgc has been modified for x86-64 on Linux and
macOS to a support mark-and-sweep as well as the traditional
copying strategy. It is conceivable that some applications
might be adversely affected. Please see ':immobile-space' in
'base-target-features.lisp-expr' for further details, and
possible reasons to disable this feature.
* enhancement: x86-64 supports shrinking the fixed overhead in
a structure from 2 words to 1 word, reducing memory
consumption in applications which create many small
structures.
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