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+Revision 0.1.7
+--------------
+
+- License updated to vanilla BSD 2-Clause to ease package use
+  (http://opensource.org/licenses/BSD-2-Clause).
+- Test suite made discoverable by unittest/unittest2 discovery feature.
+- Fix to decoder working on indefinite length substrate -- end-of-octets
+  marker is now detected by both tag and value. Otherwise zero values may
+  interfere with end-of-octets marker.
+- Fix to decoder to fail in cases where tagFormat indicates inappropriate
+  format for the type (e.g. BOOLEAN is always PRIMITIVE, SET is always 
+  CONSTRUCTED and OCTET STRING is either of the two)
+- Fix to REAL type encoder to force primitive encoding form encoding.
+- Fix to CHOICE decoder to handle explicitly tagged, indefinite length
+  mode encoding
+- Fix to REAL type decoder to handle negative REAL values correctly. Test
+  case added.
+
+Revision 0.1.6
+--------------
+
+- The compact (valueless) way of encoding zero INTEGERs introduced in
+  0.1.5 seems to fail miserably as the world is filled with broken
+  BER decoders. So we had to back off the *encoder* for a while.
+  There's still the IntegerEncoder.supportCompactZero flag which
+  enables compact encoding form whenever it evaluates to True.
+- Report package version on debugging code initialization.
+
+Revision 0.1.5
+--------------
+
+- Documentation updated and split into chapters to better match
+  web-site contents.
+- Make prettyPrint() working for non-initialized pyasn1 data objects. It
+  used to throw an exception.
+- Fix to encoder to produce empty-payload INTEGER values for zeros
+- Fix to decoder to support empty-payload INTEGER and REAL values
+- Fix to unit test suites imports to be able to run each from
+  their current directory
+
+Revision 0.1.4
+--------------
+
+- Built-in codec debugging facility added
+- Added some more checks to ObjectIdentifier BER encoder catching
+  posible 2^8 overflow condition by two leading sub-OIDs
+- Implementations overriding the AbstractDecoder.valueDecoder method
+  changed to return the rest of substrate behind the item being processed
+  rather than the unprocessed substrate within the item (which is usually
+  empty).
+- Decoder's recursiveFlag feature generalized as a user callback function
+  which is passed an uninitialized object recovered from substrate and
+  its uninterpreted payload.
+- Catch inappropriate substrate type passed to decoder.
+- Expose tagMap/typeMap/Decoder objects at DER decoder to uniform API.
+- Obsolete __init__.MajorVersionId replaced with __init__.__version__
+  which is now in-sync with distutils.
+- Package classifiers updated.
+- The __init__.py's made non-empty (rumors are that they may be optimized 
+  out by package managers).
+- Bail out gracefully whenever Python version is older than 2.4.
+- Fix to Real codec exponent encoding (should be in 2's complement form),
+  some more test cases added.
+- Fix in Boolean truth testing built-in methods
+- Fix to substrate underrun error handling at ObjectIdentifier BER decoder
+- Fix to BER Boolean decoder that allows other pre-computed
+  values besides 0 and 1
+- Fix to leading 0x80 octet handling in DER/CER/DER ObjectIdentifier decoder.
+  See http://www.cosic.esat.kuleuven.be/publications/article-1432.pdf
+
+Revision 0.1.3
+--------------
+
+- Include class name into asn1 value constraint violation exception.
+- Fix to OctetString.prettyOut() method that looses leading zero when
+  building hex string.
+
+Revision 0.1.2
+--------------
+
+- Fix to __long__() to actually return longs on py2k
+- Fix to OctetString.__str__() workings of a non-initialized object.
+- Fix to quote initializer of OctetString.__repr__()
+- Minor fix towards ObjectIdentifier.prettyIn() reliability
+- ObjectIdentifier.__str__() is aliased to prettyPrint()
+- Exlicit repr() calls replaced with '%r'
+
+Revision 0.1.1
+--------------
+
+- Hex/bin string initializer to OctetString object reworked
+  (in a backward-incompatible manner)
+- Fixed float() infinity compatibility issue (affects 2.5 and earlier)
+- Fixed a bug/typo at Boolean CER encoder.
+- Major overhawl for Python 2.4 -- 3.2 compatibility:
+  + get rid of old-style types
+  + drop string module usage
+  + switch to rich comparation
+  + drop explicit long integer type use
+  + map()/filter() replaced with list comprehension
+  + apply() replaced with */**args
+  + switched to use 'key' sort() callback function
+  + support both __nonzero__() and __bool__() methods
+  + modified not to use py3k-incompatible exception syntax
+  + getslice() operator fully replaced with getitem()
+  + dictionary operations made 2K/3K compatible
+  + base type for encoding substrate and OctetString-based types
+    is now 'bytes' when running py3k and 'str' otherwise
+  + OctetString and derivatives now unicode compliant.
+  + OctetString now supports two python-neutral getters: asOcts() & asInts()
+  + print OctetString content in hex whenever it is not printable otherwise
+  + in test suite, implicit relative import replaced with the absolute one
+  + in test suite, string constants replaced with numerics
+
+Revision 0.0.13
+---------------
+
+- Fix to base10 normalization function that loops on univ.Real(0)
+
+Revision 0.0.13b
+----------------
+
+- ASN.1 Real type is now supported properly.
+- Objects of Constructed types now support __setitem__()
+- Set/Sequence objects can now be addressed by their field names (string index)
+  and position (integer index).
+- Typo fix to ber.SetDecoder code that prevented guided decoding operation.
+- Fix to explicitly tagged items decoding support.
+- Fix to OctetString.prettyPrint() to better handle non-printable content.
+- Fix to repr() workings of Choice objects.
+
+Revision 0.0.13a
+----------------
+
+- Major codec re-design.
+- Documentation significantly improved.
+- ASN.1 Any type is now supported.
+- All example ASN.1 modules moved to separate pyasn1-modules package.
+- Fix to initial sub-OID overflow condition detection an encoder.
+- BitString initialization value verification improved.
+- The Set/Sequence.getNameByPosition() method implemented.
+- Fix to proper behaviour of PermittedAlphabetConstraint object.
+- Fix to improper Boolean substrate handling at CER/DER decoders.
+- Changes towards performance improvement:
+  + all dict.has_key() & dict.get() invocations replaced with modern syntax
+    (this breaks compatibility with Python 2.1 and older).
+  + tag and tagset caches introduced to decoder
+  + decoder code improved to prevent unnecessary pyasn1 objects creation
+  + allow disabling components verification when setting components to
+    structured types, this is used by decoder whilst running in guided mode.
+  + BER decoder for integer values now looks up a small set of pre-computed
+    substrate values to save on decoding.
+  + a few pre-computed values configured to ObjectIdentifier BER encoder.
+  + ChoiceDecoder split-off SequenceOf one to save on unnecessary checks.
+  + replace slow hasattr()/getattr() calls with isinstance() introspection.
+  + track the number of initialized components of Constructed types to save
+    on default/optional components initialization.
+  + added a shortcut ObjectIdentifier.asTuple() to be used instead of
+    __getitem__() in hotspots.
+  + use Tag.asTuple() and pure integers at tag encoder.
+  + introduce and use in decoder the baseTagSet attribute of the built-in
+    ASN.1 types.
+
+Revision 0.0.12a
+----------------
+
+- The individual tag/length/value processing methods of 
+  encoder.AbstractItemEncoder renamed (leading underscore stripped)
+  to promote overloading in cases where partial substrate processing
+  is required.
+- The ocsp.py, ldap.py example scripts added.
+- Fix to univ.ObjectIdentifier input value handler to disallow negative
+  sub-IDs.
+
+Revision 0.0.11a
+----------------
+
+- Decoder can now treat values of unknown types as opaque OctetString.
+- Fix to Set/SetOf type decoder to handle uninitialized scalar SetOf 
+  components correctly.
+
+Revision 0.0.10a
+----------------
+
+- API versioning mechanics retired (pyasn1.v1 -> pyasn1) what makes
+  it possible to zip-import pyasn1 sources (used by egg and py2exe).
+
+Revision 0.0.9a
+---------------
+
+- Allow any non-zero values in Boolean type BER decoder, as it's in
+  accordnance with the standard.
+
+Revision 0.0.8a
+---------------
+
+- Integer.__index__() now supported (for Python 2.5+).
+- Fix to empty value encoding in BitString encoder, test case added.
+- Fix to SequenceOf decoder that prevents it skipping possible Choice
+  typed inner component.
+- Choice.getName() method added for getting currently set component
+  name.
+- OctetsString.prettyPrint() does a single str() against its value
+  eliminating an extra quotes.
+
+Revision 0.0.7a
+---------------
+
+- Large tags (>31) now supported by codecs.
+- Fix to encoder to properly handle explicitly tagged untagged items.
+- All possible value lengths (up to 256^126) now supported by encoders.
+- Fix to Tag class constructor to prevent negative IDs.
+
+Revision 0.0.6a
+---------------
+
+- Make use of setuptools.
+- Constraints derivation verification (isSuperTypeOf()/isSubTypeOf()) fixed.
+- Fix to constraints comparation logic -- can't cmp() hash values as it
+  may cause false positives due to hash conflicts.
+
+Revision 0.0.5a
+---------------
+
+- Integer BER codec reworked fixing negative values encoding bug.
+- clone() and subtype() methods of Constructed ASN.1 classes now 
+  accept optional cloneValueFlag flag which controls original value
+  inheritance. The default is *not* to inherit original value for 
+  performance reasons (this may affect backward compatibility).
+  Performance penalty may be huge on deeply nested Constructed objects
+  re-creation.
+- Base ASN.1 types (pyasn1.type.univ.*) do not have default values
+  anymore. They remain uninitialized acting as ASN.1 types. In 
+  this model, initialized ASN.1 types represent either types with
+  default value installed or a type instance.
+- Decoders' prototypes are now class instances rather than classes.
+  This is to simplify initial value installation to decoder's
+  prototype value.
+- Bugfix to BitString BER decoder (trailing bits not regarded).
+- Bugfix to Constraints use as mapping keys.
+- Bugfix to Integer & BitString clone() methods
+- Bugix to the way to distinguish Set from SetOf at CER/DER SetOfEncoder
+- Adjustments to make it running on Python 1.5.
+- In tests, substrate constants converted from hex escaped literals into
+  octals to overcome indefinite hex width issue occuring in young Python.
+- Minor performance optimization of TagSet.isSuperTagSetOf() method
+- examples/sshkey.py added
+
+Revision 0.0.4a
+---------------
+
+* Asn1ItemBase.prettyPrinter() -> *.prettyPrint()
+
+Revision 0.0.3a
+---------------
+
+* Simple ASN1 objects now hash to their Python value and don't
+  depend upon tag/constraints/etc.
+* prettyIn & prettyOut methods of SimplleAsn1Object become public
+* many syntax fixes
+
+Revision 0.0.2a
+---------------
+
+* ConstraintsIntersection.isSuperTypeOf() and 
+  ConstraintsIntersection.hasConstraint() implemented
+* Bugfix to NamedValues initialization code
+* +/- operators added to NamedValues objects
+* Integer.__abs__() & Integer.subtype() added
+* ObjectIdentifier.prettyOut() fixes
+* Allow subclass components at SequenceAndSetBase
+* AbstractConstraint.__cmp__() dropped
+* error.Asn1Error replaced with error.PyAsn1Error
+
+Revision 0.0.1a
+---------------
+
+* Initial public alpha release