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What's new: -----------

What changed: -------------

Bug Fixes ---------

- Revert the following patch from 2.2.0:
  When  started  from a non-Cygwin process, check if $HOME starts
with a
  slash (absolute POSIX path).  Otherwise ignore it.

- Fix output of /proc/cpuinfo in terms of cpu topology and  cache
size for
  modern  CPUs  and  modern  Windows OSes supporting more than 64
logical CPUs.

- Don't try to perform RFC2307 owner/group mapping  on  Samba/NFS
if account
  info is only fetched from local passwd/group files.
  Addresses: https://cygwin.com/ml/cygwin/2015-07/msg00270.html

-  Precautionally fix a potential data corruption problem in pipe
I/O, only
  actually observered in Wine yet.  However, MSDN language  indi-
cates this
  might be a problem on real Windows as well.
  Addresses: Freenode IRC #cygwin discussion, ML entry follows.