Version 2.1 (released 2009-04-17)
- Fix compilation failure on platforms that can't generate empty archives,
  e.g., Mac OS X.  Reported by David Reiser <dbreiser@gmail.com>.

Version 2.0 (released 2009-04-13)
- Optimized tree generation.
- ASN1 parser code re-generated using Bison 2.4.1.
- Build with more warning flags.  Many compiler warnings fixed.
- Compiled with -fvisibility=hidden by default if supported.
  See http://gcc.gnu.org/wiki/Visibility
- The libtasn1-config tool has been removed.
  For application developers, please stop using libtasn1-config for
  finding libtasn1, use proper autoconf checks or pkg-config instead.
  For users that need a libtasn1 that provides a libtasn1-config
  script (for use with older applications), use libtasn1 v1.x instead.
  Version 1.x is still supported.

Version 1.8 (released 2009-01-16)
- Fix crlf self-test under Mingw+Wine.
- Fix build problems on platforms that lack stdint.h.
  Reported by Dagobert Michelsen <dam@opencsw.org> in
  <http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3377>.

Version 1.7 (released 2008-11-17)
- Add libtasn1-config for compatibility.
  Please stop use it as it will disappear in v2.0!
  Use standard AC_CHECK_FUNCS autoconf tests or pkg-config instead.
- Read PKCS#12 blob as binary file, fixes self-tests under Mingw.
- Fix use of __attribute__ ((deprecated)) to work on non-GCC (#106548).

Version 1.6 (released 2008-11-10)
- Fixed namespace violation for MAX_NAME_SIZE and MAX_ERROR_DESCRIPTION_SIZE.
  The new names are ASN1_MAX_NAME_SIZE and ASN1_MAX_ERROR_DESCRIPTION_SIZE.
- Fixed namespace violation for libtasn1_perror and libtasn1_strerror.
  The new names are asn1_perror and asn1_strerror.
- Fix namespace violation for LIBASN1_VERSION.
  The new name is ASN1_VERSION.
- Decoder can now decode BER encoded octet strings.
- doc: Change license on the manual to GFDLv1.3+.
- doc: Sync gdoc script with GnuTLS, changes license on man-pages to GAP.
- doc: Improve gtk-doc manual.
- Assumes system has strdup and string.h.
- Remove libtasn1-config and libtasn1.m4,
  use standard AC_CHECK_FUNCS autoconf tests or pkg-config instead.
- Change detection of when to use a linker version script,
  use --enable-ld-version-script or --disable-ld-version-script to
  override auto-detection logic.
- API and ABI changes since last version:
  asn1_get_length_ber: New function.
  ASN1_VERSION: New symbol, replaces LIBTASN1_VERSION.
  asn1_strerror: New function, replaces libtasn1_strerror.
  asn1_perror: New function, replaces libtasn1_perror.
  libtasn1_strerror: Marked as deprecated.
  libtasn1_perror: Marked as deprecated.
  LIBTASN1_VERSION: Deprecated.

Version 1.5 (released 2008-07-29)
- Update gnulib files.
- Fix memory leaks, from Christian Grothoff <christian@grothoff.org>.

Version 1.4 (released 2008-04-21)
- Update gnulib files.
- Replace uses of alloca with malloc.

Version 1.3 (released 2008-02-01)
- Handle 'INTEGER { ... } (a..b)' regression.
  Revert parts of earlier fix.  asn1Parser can now again parse src/pkix.asn1.
  The ASN1.c file was generated using Bison 2.3.
- Move examples from src/ to new directory examples/.
- Duplicate copy of divergated pkix.asn removed.
- Merge unnecessary lib/defines.h into lib/int.h.
- Configure no longer tries to use gcc -pipe.
- Update gnulib files.
- Fix mem leak in self-test.

Version 1.2 (released 2007-12-10)
- Update gnulib files.

Version 1.1 (released 2007-08-31)
- Fix bug that made asn1_check_version believe that 1.0 is older than 0.3.10.

Version 1.0 (released 2007-08-31)
- The self-tests, command line tools and build infrastructure have
  been re-licensed from GPLv2 to GPLv3.
- Doc fixes.
- Update gnulib files.

Version 0.3.10 (released 2007-05-25)
- Update gnulib files.

Version 0.3.9 (released 2007-03-02)
- In generated code, config.h is pulled in if HAVE_CONFIG_H.
- Development changes: changed from CVS to GIT as an experiment.
  I push my changes to <http://repo.or.cz/w/libtasn1.git>.
- Autoconf 2.61 and automake 1.10 is required.

Version 0.3.8 (released 2006-11-16)
- Fix reading of binary files in asn1Decoding, for Windows.

Version 0.3.7 (released 2006-10-19)
- When asn1_der_coding encoded a TYPE_NULL and the output buffer is
  NULL, it would not increment the counter properly, so the size of
  the required buffer would be off by one.  Fixed.  Reported by
  Stephen Wrobleski <steve@localtoast.org>.
- Fix configure to respect user-definable flags.  Reported by "Diego
  'Flameeyes' Pettenò" <flameeyes@gentoo.org>.
- The --help and --version outputs from the tools have been improved.

Version 0.3.6 (released 2006-08-13)
- Fix man pages to use \- instead of - for negative signs (as in "-1").
- Add -I's when building in src/, so that unistd.h etc is found on
  systems that doesn't have them.
- Valgrind isn't used for cross-compilation by default, and there is
  also --disable-valgrind-tests to unconditionally disable it.
- Valgrind is invoked without parameters, put things you like into
  ~/.valgrindrc instead.

Version 0.3.5 (released 2006-06-27)
- Fix asn1_octet_der to handle writes of zero-length buffers, before
  it did not write the ASN.1 length for a zero-length buffer.  This caused
  ASN.1 encodings to be incorrect on 64-bit platforms.
- Add self test that attempt to trigger the above bug.
- Fix test of -Wno-pointer-sign.
- Improve cross-compilation to MinGW by using AC_LIBTOOL_WIN32_DLL.

Version 0.3.4 (released 2006-05-10)
- Really fix encodings.
- Add new self test, tests/Test_encoding.c.
- Self tests are ran under valgrind, if it is available.
- We test for the -Wno-pointer-sign parameter before using it.

Version 0.3.3 (released 2006-05-07)
- Add some 'const' to prototypes.
- Remove some 'unsigned' keywords.
- Corrected asn1_der_coding() bug introduced when it became reentrant.
  Now it produces correct encodings.

Version 0.3.2
- Corrected bug in asn1_der_coding() which overwrited some
  data in the original structure.
- The asn1Parser, asn1Coding and asn1Decoding programs are now installed.

Version 0.3.1
- Support constant size bit strings, as in 'BIT STRING (SIZE(42))'.
  Reported by Cyril Holweck <cyril.holweck@q-free.com>.
- Add two more APIs required by GnuTLS.
- New public APIs:
  asn1_find_node function
  asn1_copy_node

Version 0.3.0
- Export DER utility functions, mostly so that GnuTLS can avoid using
  libtasn1 internals.
- The _asn1* symbols are not exported in the shared library file (when
  using GNU ld).
- The library can now be built using Visual Studio, and the project
  files are included in windows/.
- New public APIs:
  asn1_get_tag_der
  asn1_octet_der
  asn1_get_octet_der
  asn1_bit_der
  asn1_get_bit_der
  asn1_get_length_der
  asn1_length_der

Version 0.2.18
- Fix out-of-bounds access in DER decoding, reported by Evgeny Legerov.
- Add 'const' keyword to some prototypes, thanks to Frediano ZIGLIO.
- Fixed typo in src/Makefile.am to make it build with objdir != srcdir,
  thanks to Bernard Leak.
- Update of gnulib files.
- Typo fixes in comments, e.g. finish libasn1 to libtasn1 renaming,
  use LGPL boiler plate on some files in lib/.

Version 0.2.17
- Fixed typo to make it build.

Version 0.2.16
- Version script added again.

Version 0.2.15
- Gnulib is used to implement memmove if your system does not have it.
- Simplified assert/error handling slightly.

Version 0.2.14
- Some build fixes.
- Pkg-config script 'libtasn1.pc' added.
- Postal address to FSF in license updated.

Version 0.2.13
- Version number in libtasn1.h updated properly.

Version 0.2.12
- Manual converted to Texinfo format.
- Manual in GTK-DOC and DevHelp formats added.
- Man pages for all functions added.
- Various internal cleanups.

Version 0.2.11
- Added the self test with "make check" target
- Added management of ANY type with null length
- Corrected some writes to invalid data.
 
Version 0.2.10
- Added scripts to assist in libtasn1 version detection
  from configure scripts.
- Corrected a DER decoding bug which was reported
  by Max Vozeler <max@hinterhof.net>.

Version 0.2.9
- Accept negative numbers as range in INTEGER declarations

Version 0.2.8
- Add asn1_delete_element function

Version 0.2.7
- Added versioned symbols.

Version 0.2.6
- ASN.1 parser accepts these kinds of integer definitions:
  "INTEGER (5 | 10)" and
  "INTEGER (5)"
- Comments start at "--" and finish at the "end of line" or
  with another "--". 

Version 0.2.5
- Bug fix in ordering procedure for SET OF and SEQUENCE OF
  types coding.
- Manage structured format (BER encoding) in
  asn1_der_decoding, asn1_decoding_element and 
  asn1_der_decoding_startEnd for OCTET STRING type.
- Manage SEQUENCE and SET empty structure. 
- Manage "indefinite length method" in asn1_der_decoding,
  asn1_decoding_element and asn1_der_decoding_startEnd 
  for the following types:
  SEQUENCE, SEQUENCE OF, SET, and SET OF.
- Bug fix in asn1_read_value with NULL parameter in case
  of BIT STRING

Version 0.2.4
- Bug fix in asn1_der_coding with NULL parameter
- Manage DEFAULT option with OBJECT IDENTIFIER

Version 0.2.3
- Chenge asn1_find_structure_from_oid prototype
- Chenge asn1_find_structure_from_oid prototype
- Add ASN1_MEM_ALLOC_ERROR return value

Version 0.2.2
- Add vector length check in asn1_der_coding function
- Add vector length check in asn1_der_coding function
- Add vector length check in asn1_read_value function
- Add asn1_check_version function

Version 0.2.1
- Add asn1_find_structure_from_oid function
- Add asn1_read_tag function

Version 0.2.0
- Support for other platforms
- Change asn1_create_element function interface (dest_name not needed any more)
- Change OBJECT IDENTIFIER syntax: numbers must be separated by dot in 
  asn1_write_element and asn1_read_element functions (e.g. "1.2.3.4")

Version 0.1.2
- Added GeneralString type
- Fixed a DER encoding bug when nested tags are used

Version 0.1.1
- Renamed to libtasn1
- Functions which return a string for error description
  now accept a NULL argument.
- License is now GNU Lesser GPL

Version 0.1.0
- Initial release
