Update ChangeLog.

ChangeLog

@@ -30,12 +30,12 @@ brevity.  Much more detail can be found in the git revision history:
     options string during configuration.  This was motivated by the desire to
     specify --with-malloc-conf=purge:decay , since the default must remain
     purge:ratio until the 5.0.0 release.  (@jasone)
+  - Add MS Visual Studio 2015 support.  (@rustyx, @yuslepukhin)
   - Make *allocx() size class overflow behavior defined.  The maximum
     size class is now less than PTRDIFF_MAX to protect applications against
     numerical overflow, and all allocation functions are guaranteed to indicate
     errors rather than potentially crashing if the request size exceeds the
     maximum size class.  (@jasone)
-  - Add MS Visual Studio 2015 support.  (@rustyx, @yuslepukhin)
   - jeprof:
     + Add raw heap profile support.  (@jasone)
     + Add --retain and --exclude for backtrace symbol filtering.  (@jasone)
@@ -57,22 +57,25 @@ brevity.  Much more detail can be found in the git revision history:
   - Make opt.narenas unsigned rather than size_t.  (@jasone)
 
   Bug fixes:
+  - Fix stats.cactive accounting regression.  (@rustyx, @jasone)
+  - Handle unaligned keys in hash().  This caused problems for some ARM systems.
+    (@jasone, Christopher Ferris)
   - Refactor arenas array.  In addition to fixing a fork-related deadlock, this
     makes arena lookups faster and simpler.  (@jasone)
-  - Handle unaligned keys in hash().  This caused problems for some ARM systems.
-    (@jasone)
-  - Fix run quantization.  In practice this bug had no impact unless
-    applications requested memory with alignment exceeding one page.  (@jasone)
   - Move retained memory allocation out of the default chunk allocation
     function, to a location that gets executed even if the application installs
     a custom chunk allocation function.  This resolves a virtual memory leak.
     (@buchgr)
-  - Resolve undefined unsigned-to-signed conversion that could cause corruption
-    of the stats.cactive statistic.  (@jasone)
+  - Fix a potential tsd cleanup leak.  (Christopher Ferris, @jasone)
+  - Fix run quantization.  In practice this bug had no impact unless
+    applications requested memory with alignment exceeding one page.
+    (@jasone, @djwatson)
   - Fix LinuxThreads-specific bootstrapping deadlock.  (Cosmin Paraschiv)
   - jeprof:
     + Don't discard curl options if timeout is not defined.  (@djwatson)
     + Detect failed profile fetches.  (@djwatson)
+  - Fix stats.arenas.<i>.{dss,lg_dirty_mult,decay_time,pactive,pdirty} for
+    --disable-stats case.  (@jasone)
 
 * 4.0.4 (October 24, 2015)