sbcl-1.4.9 released

Dear all,

I (belatedly) tell you that I have released sbcl-1.4.9, uploading the
usual complement of binaries and sources to sourceforge.  There are
slightly more user-visible changes this month than in recent memory,
detailed below, as well as the usual number of behind-the-scenes
improvements and bug fixes.

Best wishes,

Christophe

changes in sbcl-1.4.9 relative to sbcl-1.4.8:
  * enhancement: SB-COVER instrumentation for x86[-64] has signficantly less
    overhead. The performance penalty for 64-bit code has been measured at
    around 30% slower than uninstrumented code as contrasted with slowdowns
    in excess of 100% previously.
  * enhancement: tracing a generic function with the :METHODS T option
    produces output corresponding to each method called under the default
    :ENCAPSULATE NIL tracing implementation.
  * bug fix: updated TRACE documentation.  (lp#574614 was actually already
    fixed, but there were other issues.)
  * bug fix: fixed x86 GC bug causing heap corruption. (lp#1749369)
  * bug fix: improved compatibility with macOS High Sierra and graphical
    applications.


------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot