X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=NEWS;h=17f741033e8a700b6a56db73e819491f2e500c46;hb=5a2b6553fbbbb62fa789350facd0d56bb136045f;hp=27a9263c5929533a6cce034b2c8b2a7839d0d644;hpb=174feb792c8082846666e1218c58d5b0ab3b85b0;p=sbcl.git

diff --git a/NEWS b/NEWS
index 27a9263..17f7410 100644
--- a/NEWS
+++ b/NEWS
@@ -2001,6 +2001,27 @@ changes in sbcl-0.8.3 relative to sbcl-0.8.2:
     new array subtypes UNSIGNED-BYTE 7, 15, 29, and 31 mandated by 
     obscure ANSI requirements
 
+changes in sbcl-0.8.4 relative to sbcl-0.8.3:
+  * fixed compiler performance when processing loops with a step >1;
+  * bug fix: DOCUMENTATION now retrieves generic function
+    documentation.  Also, DOCUMENTATION and (SETF DOCUMENTATION)
+    support has been systematized, and now supports the methods
+    specified by ANSI, along with a default method and a method for
+    slot documentation.  (reported by Nathan Froyd)
+  * bug fix: effective methods associated with a generic function are
+    no longer cached over a change of that generic function's method
+    combination.  (reported by Andreas Fuchs)
+  * optimization: restored some effective method precomputation in
+    CLOS (turned off by an ANSI fix in sbcl-0.8.3); the amount of
+    precomputation is now tunable.
+  * optimization: compiler-internal data structure use has been
+    reviewed, and changes have been made that should improve the
+    performance of the compiler by about 20%.
+  * microoptimization: the compiler is better able to make use of the
+    x86 LEA instruction for multiplication by constants.
+  * bug fix: in some situations compiler did not report usage of
+    generic arithmetic in (SPEED 3) policy.
+
 planned incompatible changes in 0.8.x:
   * (not done yet, but planned:) When the profiling interface settles
     down, it might impact TRACE. They both encapsulate functions, and