fetchmail-6.4.7 (released 2020-06-14, 27596 LoC):

## TRANSLATION UPDATE, with thanks to the translator:
* sv:    Göran Uddeborg [Swedish]

# KNOWN BUGS AND WORKAROUNDS
  (This section floats upwards through the NEWS file so it stays with the
  current release information)
* Fetchmail does not handle messages without Message-ID header well
  (See sourceforge.net bug #780933)
* Fetchmail currently uses 31-bit signed integers in several places
  where unsigned and/or wider types should have been used, for instance,
  for mailbox sizes, and misreports sizes of 2 GibiB and beyond. 
  Fixing this requires C89 compatibility to be relinquished.
* BSMTP is mostly untested and errors can cause corrupt output.
* Fetchmail does not track pending deletes across crashes.
* The command line interface is sometimes a bit stubborn, for instance,
  fetchmail -s doesn't work with a daemon running.
* Linux systems may return duplicates of an IP address in some circumstances if
  no or no global IPv6 addresses are configured.
  (No workaround. Ubuntu Bug#582585, Novell Bug#606980.)
* Kerberos 5 may be broken, particularly on Heimdal, and provide bogus error
  messages. This will not be fixed, because the maintainer has no Kerberos 5
  server to test against. Use GSSAPI.

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