1.5.0

• A CMake build script has been added for Windows builds. The Visual
  Studio project files in projects are now considered deprecated and will
  be removed in a future release.

1.4.3

• On Windows, always call CreateFileW instead of CreateFile.
  CreateFile could be mapped to CreateFileA and not work as expected.
  Pull request by Sandu Liviu Catalin. GitHub #228.
• Fixed use of uninitialized memory in dump_entry_data_list() that could
  cause a heap buffer flow in mmdblookup. As part of this fix, most uses
  of malloc were replaced with calloc. Reported by azhou. GitHub #236.

1.4.2

• The 1.4.0 release introduced a change that increased the size of MMDB_s,
  unintentionally causing an ABI break. This release reverts the relevant
  commit.

1.4.1 - DO NOT USE

DO NOT USE. UNINTENDED ABI BREAK.

• The man page links for function calls were not generated correctly in
  1.4.0. This has been corrected.

1.4.0 - DO NOT USE

DO NOT USE. UNINTENDED ABI BREAK.

• A negative array index may now be used with MMDB_get_value,
  MMDB_vget_value, and MMDB_aget_value. This specifies the element
  from the end of the array. For instance, -1 would refer to the
  last element of the array. PR by Kyle Box. GitHub #205.
• On Windows, the file name passed to MMDB_open is now expected to be
  UTF-8 encoded. This allows Unicode characters to be used in file names.
  As part of this change, mmdblookup on Windows now converts its
  arguments to UTF-8. PR by Gerald Combs. GitHub #189 & #191.
• Fix a memory leak that occurred when freeing an MMDB_s where the
  database had no languages defined in the metadata. If you are using an
  official MaxMind database, this leak does not affect you. Pull request
  by Kókai Péter. GitHub #180.
• Add --disable-binaries option to configure. Pull request by Fabrice
  Fontaine. GitHub #166.
• Previous releases incorrectly included *.Po files in the t directory.
  This has been corrected. Reported by Daniel Macks. GitHub #168.
• The internal use of the MMDB_s now has the const modifier. Public
  functions that accepted an MMDB_s as an argument now also declare it as
  const. Pull request by Kurt Johnson. GitHub #199.
• mmdblookup now displays the prefix length for the record when using
  the verbose flag. GitHub #172.

1.3.2

• Allocate memory for MMDB_entry_data_list_s structs in separate chunks
  rather than one large chunk. This simplifies accessing memory in
  MMDB_get_entry_data_list() and increases performance. It builds on the
  changes in 1.3.0 and 1.3.1.
• We no longer export data_pool_* symbols. These are internal functions
  but we were previously exporting them. Pull request by Faidon Liambotis.
  GitHub #162.
• Build with POSIX.1-2008 by default if the system supports it. This allows
  use of open() with O_CLOEXEC. We retain support for systems that
  provide only POSIX.1-2001.
• Open the database with the O_CLOEXEC flag if the system provides it.
  This avoids cases where we could leak fds when called in multi-threaded
  programs that fork() and exec(). Original report and PR by Brandon L
  Black.
• Added a test to ensure we export only intended symbols (e.g. MMDB_*).

1.3.1

• Fix build problems related to rpl_malloc(). Pull request by Rainer
  Gerhards. GitHub #152.
• Fix a race to set and read data in a field on the MMDB_s struct
  (ipv4_start_node). GitHub #153.
• Fix cases of invalid memory access when using
  MMDB_get_entry_data_list(). This was introduced in 1.3.0 and occurred
  when performing large lookups. GitHub #153.

1.3.0

• Perform fewer memory allocations in MMDB_get_entry_data_list(). This
  significantly improves its performance. GitHub #147.
• Fix mmdblookup's build epoch reporting on some systems. Big endian
  systems with a 32-bit time_t no longer show a database build date of
  1970-01-01 00:00:00. Pull request by Rainer Jung. GitHub #143.

1.2.1

• Use autoconf to check the system's endianness rather than trying to do this
  with compiler-defined macros like __BYTE_ORDER__. Apparently this didn't
  work properly on a Sparc system. GitHub #120.
• Several compiler warnings on Visual C++ were fixed. Pull request by Marcel
  Raad. GitHub #130.
• Fix segmentation faults found in MMDB_open() using afl-fuzz. This
  occurred on corrupt databases that had a data pointer large enough to
  cause an integer overflow when doing bound checking. Reported by Ryan
  Whitworth. GitHub #140.
• Add --disable-tests option to configure. Pull request by Fabrice
  Fontaine. GitHub #136.

1.2.0 - Extended API for Iteration of Database

• Four additional fields were added to the end of the MMDB_search_node_s
  struct returned by MMDB_read_node. These fields allow the user to iterate
  through the search tree without making undocumented assumptions about how
  this library works internally and without knowing the specific details of
  the database format. GitHub #110.