1.4.0

• IMPORTANT: Previously, the pure Python reader would allow
  ipaddress.IPv4Address and ipaddress.IPv6Address objects when calling
  .get(). This would fail with the C extension. The fact that these objects
  worked at all was an implementation detail and has varied with different
  releases. This release makes the pure Python implementation consistent
  with the extension. A TypeError will now be thrown if you attempt to
  use these types with either the pure Python implementation or the
  extension. The IP address passed to .get() should be a string type.
• Fix issue where incorrect size was used when unpacking some types with the
  pure Python reader. Reported by Lee Symes. GitHub #30.
• You may now pass in the database via a file descriptor rather than a file
  name when creating a new maxminddb.Reader object using MODE_FD.
  This will read the database from the file descriptor into memory. Pull
  request by nkinkade. GitHub #33.

1.3.0

• maxminddb.Reader and the C extension now support being used in a context
  manager. Pull request by Joakim Uddholm. GitHub #21 & #28.
• Provide a more useful error message when MODE_MMAP_EXT is requested but
  the C extension is not available.

1.2.3

• Improve compatibility with other Python 2 ipaddress backports. Although
  ipaddress is highly recommended, py2-ipaddress and
  backport_ipaddress should now work. Incompatibility reported by
  John Zadroga on geoip2 GitHub issue #41.

1.2.2

• Fix to the classifiers in setup.py. No code changes.

1.2.1: Use ipaddress instead of ipaddr on Python 2. Packaging fixes.

• This module now uses the ipaddress module for Python 2 rather than the
  ipaddr module. Users should notice no behavior change beyond the change
  in dependencies.
• Removed requirements.txt from MANIFEST.in in order to stop warning
  during installation.
• Added missing test data.

1.2.0: MODE_FILE fix when reader is loaded before forking

• Previously if MODE_FILE was used and the database was loaded before
  forking, the parent and children would use the same file table entry without
  locking causing errors reading the database due to the offset being changed
  by other processes. In MODE_FILE, the reader will now use os.pread
  when available and a lock when os.pread is not available (e.g., Python
  2). If you are using MODE_FILE on a Python without os.pread, it is
  recommended that you open the database after forking to reduce resource
  contention.
• The Metadata class now overloads __repr__ to provide a useful
  representation of the contents when debugging.
• An InvalidDatabaseError will now be thrown if the data type read from
  the database is invalid. Previously a KeyError was thrown.

1.1.1: Python 3 MODE_AUTO fix

• On Python 3 there was a potential issue where open_database with
  MODE_AUTO would try to use the C extension when it was not available.
  This could cause the function to fail rather than falling back to a pure
  Python mode.

1.1.0: Memory and file more for Python reader

• The pure Python reader now supports an optional file and memory mode in
  addition to the existing memory-map mode. If your Python does not provide
  the mmap module, the file mode will be used by default.
• The preferred method for opening a database is now the open_database
  function in maxminddb. This function now takes an optional read
  mode.
• The C extension no longer creates its own InvalidDatabaseError class
  and instead uses the one defined in maxminddb.errors.

1.0.0

• First production release.
• Two potential C extension issues discovered by Coverity were fixed:
  • There was a small resource leak that occurred when the system ran out of
    memory.
  • There was a theoretical null pointer issue that would occur only if
    libmaxminddb returned invalid data.

0.3.3

• Corrected initialization of objects in C extension and made the objects
  behave more similarly to their pure Python counterparts.