SBCL 0.8.12 has been released.

Enjoy.

from the NEWS file:
changes in sbcl-0.8.12 relative to sbcl-0.8.11:
  * minor incompatible change: the system no longer provides
    optimization hints (conditions which are TYPEP
    SB-EXT:COMPILER-NOTE) for conforming code in default compilation
    mode; these hints are still emitted when higher SPEED optimization
    is requested.
  * new contrib module: a sampling profiler (profiling by statistical
    sampling, rather than by instrumenting functions) is available as
    the SB-SPROF contrib.  (thanks to Gerd Moellmann and Juho Snellman)
  * the behaviour of the standard function ED is now customizeable by
    third parties through a hook variable: see ED's documentation
    string for information on the protocol.
  * the compiler no longer emits efficiency notes for (FUNCALL X)
    when the type of X is uncertain under default optimization
    settings.
  * fixed bug 276: mutating a binding of a specialized parameter to a
    method to something that is not TYPEP the specializer is now
    possible.
  * fixed bugs 45d and 118: DOUBLE-FLOAT[-NEGATIVE]-EPSILON now
    exhibit the required behaviour on the x86 platform.  (thanks to
    Peter van Eynde, Eric Marsden and Bruno Haible)
  * fixed bug 335: ATANH now computes the inverse hyperbolic tangent
    even for difficult arguments.  (reported by Peter Graves)
  * fixed bug 141a: the backquote printer now descends quoted
    structure.
  * fixed another bug in backquote printing: no more destructive
    modification of the form's list structure.  (reported by Brian
    Downing)
  * fixed bug in INTERRUPT-THREAD: pin the function, so that it cannot
    move between its address being taken and the call to
    interrupt_thread, fixing a crashing race condition.
  * the SB-POSIX contrib implementation has been adjusted so that it
    no longer exhibits ridiculously poor performance when constructing
    instances corresponding to C structs.

-- 
William Harold Newman <[email protected]>
"It takes two to lie, Marge -- one to lie and one to listen." -- Homer Simpson
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