X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=NEWS;h=c872529bd4f1b8f5960168b912b8e45517a9b2eb;hb=428b60fff4247e34ff601810f33976908f22bbc0;hp=4dc064d2c7c4f73fedd566a1ebf655aa2d41c4f1;hpb=70b1a2776c9f3947503b4bcbb8ca5d944e635fb0;p=sbcl.git

diff --git a/NEWS b/NEWS
index 4dc064d..c872529 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,8 @@
 changes in sbcl-0.8.21 (0.9alpha.1?) relative to sbcl-0.8.20:
+  * incompatible change: thread support for non-NPTL systems has
+    been removed - locking is buggy and unreliable.  A threaded 
+    SBCL build will now refuse to start unless futex support is 
+    detected in the kernel
   * incompatible change: the top level REPL now has only an ABORT
     restart associated with it, not TOPLEVEL and ABORT as it used to.
     TOP and TOPLEVEL are now available as debugger commands for