changes in sbcl-2.1.10 relative to sbcl-2.1.9:

  * incompatible change: simd-pack without a specific element-type is no
    longer treated as containing integers. A type must be supplied for VOPs to
    work on such values.
  * minor incompatible change: the list form of the FUNCTION type specifier
    does not allow * as any argument type, but does allow * as a placeholder
    for wholly unspecified arguments when specifying the value(s) type.
  * minor incompatible change: the default (Lisp) toplevel option parser
    throws an error if it encounters an option which was intended to be used
    and removed by the C runtime.  (lp#1945081, reported by Luke Gorrie)
  * new feature: there is now a defined interface for defining foreign
    callable functions, which can be used for passing callbacks to foreign
    functions or for calling Lisp code from the foreign world as a shared
    library (preliminary support). See the revised manual section "Calling
    into Lisp From C" for more details.
  * enhancement: arg-count mismatches in self-calls in defmethod are reported.
    (lp#1912436, reported by 3b)
  * enhancement: the SB-CLTL2 contrib now returns type information for
    generated structure accessors.  (lp#1934859, reported by SATO shinichi)
  * optimization: code generation is improved for modular arithmetic involving
    signed operations.
  * platform support:
    ** x86-64 machine code emitter crash when attempting to assemble some
       vector instructions.  (lp#1945975, thanks to Marco Heisig)
    ** conditional move instructions are now supported on arm64.
    ** a number of new peephole optimizations have been implemented on arm64.
    ** arm64 on Darwin now uses gcc-compatible thread-local storage.
  * bug fix: compiler notes are no longer emitted when compiling FORMATTER
    forms, including when implicitly triggered on a constant string argument
    to FORMAT.  (lp#1946246, reported by SATO shinichi)
  * bug fix: a compiler error when attempting to compile a call to AREF with
    too many dimensions.  (lp#1902985)
  * bug fix: harmonize the behaviour of SLOT-BOUNDP on non-standard-objects
    between the various ways in which it can be called.  (lp#732229, reported
    by Zach Beane)
  * bug fix: FTRUNCATE and similar functions are now more careful about
    deriving facts about the sign of zero they might return.  (lp#1732009,
    reported by Paul Dietz)
-----BEGIN PGP SIGNATURE-----

iQFFBAABCgAvFiEE1oOcoKZ/dNnftwki69WVqRANY80FAmF7AqIRHGNzcjIxQGNh
bnRhYi5uZXQACgkQ69WVqRANY81atQgAoL0CffpEuU5jLW6QR4Fvebdqam/KoocE
4SbdXC0cgWY3fdmnGoudBdWuITv3Mb5jUQ4tW/wBRcGQCA3aa/M2Hiu89hJaT6Pj
MtbGWGlQd6cHpsv4KjJo3oRxHfUArp9DT35hmleodjA0czRUQpw30/kmGo4oiPL4
sSiIpOfW4GR/fJxiwXdG2Ry4+KaF+BfcECcGzn3IHm1sXVPHSnEjY+DcLegJ7GY0
5hrX3vPeAUupMfbUVJxo08Ld2zEZK6X0npfYHhDUPt604U2dGo4KWVGsc2ookBNN
or5C8WtI9hwqVN1Kx6Q7aO5WovQjKBsZ2Q7pM3W9C2QCEOVlTn5v5A==
=B/8i
-----END PGP SIGNATURE-----