The following changes exist in this release:
- The remainder of oldstyle was removed. This results in:
  - inetd mode should work again, now using the default export name in the
    newstyle protocol
  - when specifying an export on the server command line or not specifying
    a name on a client command line, the newstyle protocol is used with
    the default export name (but a warning will be produced stating that
    oldstyle is no longer supported)
  - All traces of oldstyle (except a few error messages) have been removed
- Bug fixes:
  - We now listen on IPv4 and IPv6 by default, regardless of what the
    system's configuration is like, by explicitly listening both on
    0.0.0.0 and ::.
  - Some bugs in the handling of the TRIM command have been removed
  - nbd-client now uses readit() in the negotiation, rather than plain
    non-retrying read().
- New features:
  - It is now possible to listen on multiple addresses; the "listenaddr"
    parameter has been changed into a comma-separated list of addresses
    to listen on
  - nbd-client now supports an nbdtab file, which allows connecting a
    device by just using the device name
  - nbd-server now uses a GThreadPool to implement asynchronous handling
    of requests
  - Punching holes on files is now supported on cygwin, too.
