2005/03/19
        RELEASE 2.0.6

        Added pretty-xml serializer (inlines BNodes where possible,
        typed nodes, Collections).

        Fixed bug in NTParser and n3 methods where not all characters
        where being escaped.

        Changed label and comment methods to return default passed in
        when there is no label or comment. Moved methods to Store
        Class. Store no longer inherits from Schema.

        Fixed bug involving a case with rdf:about='#'

        Changed InMemoryBackend to update third index in the same style it
	does the first two.

	
2005/01/08
        RELEASE 2.0.5

        Added publicID argument to Store's load method.

        Added RDF and RDFS to top level rdflib package.


2004/10/14
        RELEASE 2.0.4

        Removed unfinished functionality.

        Fixed bug where another prefix other than rdf was getting
        defined for the rdf namespace (causing an assertion to fail).

        Fixed bug in serializer where nodeIDs were not valid NCNames.


2004/04/21
        RELEASE 2.0.3

        Added missing "from __future__ import generators" statement to
        InformationStore. 

        Simplified RDF/XML serializer fixing a few bugs involving
        BNodes.

        Added a reset method to RDF/XML parser.

        Changed 'if foo' to "if foo is not None" in a few places in
        the RDF/XML parser.

        Fully qualified imports in rdflib.syntax {parser, serializer}.

        Context now goes through InformationStore (was bypassing it
        going directly to backend).


2004/03/22
        RELEASE 2.0.2

        Improved performance of Identifier equality tests.

        Added missing "from __future__ import generators" statements
        needed to run on Python2.2.

        Added alternative to shlib.move() if it isn't present.

        Fixed bug that occured when specifying a backend to
        InformationStore's constructor.

        Fixed bug recently introduced into InformationStore's remove
        method.


2004/03/15
        RELEASE 2.0.1

        Fixed a bug in the SleepyCatBackend multi threaded concurrency
        support. (Tested fairly extensively under the following
        conditions: multi threaded, multi process, and both).  NOTE:
        fix involved change to database format -- so 2.0.1 will not be
        able to open databases created with 2.0.0

        Removed the use of the Concurrent wrapper around
        InMemoryBackend and modified InMemoryBackend to handle
        concurrent requests. (Motivated by Concurrent's poor
        performance on bigger TripleStores.)

        Improved the speed of len(store) by making backends
        responsible for implementing __len__.

        Context objects now have a identifier property.


2004/03/10
        RELEASE 2.0.0

        Fixed a few bugs in the SleepyCatBackend multi process
        concurrency support.

        Removed rdflib.Resource

        Changed remove to now take a triple pattern and removed
        remove_triples method.

        Added __iadd__ method to Store in support of store +=
        another_store.


2004/01/04
        RELEASE 1.3.2

        Added a serialization dispatcher.

        Added format arg to save method.

        Store now remembers prefix/namespace bindings.

        Backends are now more pluggable

        ...

2003/10/14
        RELEASE 1.3.1

        Fixed bug in serializer where triples where only getting
        serialized the first time.

        Added type checking for contexts.

        Fixed bug that caused comparisons with a Literal to fail when
        the right hand side was not a string.

        Added DB_INIT_CDB flag to SCBacked for supporting multiple
        reader/single writer access

        Changed rdf:RDF to be optional to conform with latest spec.

        Fixed handling of XMLLiterals


2003/04/40
        RELEASE 1.3.0

        Removed bag_id support and added it to OLD_TERMS.

        Added a double hash for keys in SCBacked.

        Fixed _HTTPClient so that it no longer removes metadata about
        a context right after it adds it.

        Added a KDTreeStore and RedlandStore backends.

        Added a StoreTester.


2003/02/28
        RELEASE 1.2.4

        Fixed bug in SCBackend where language and datatype information
        where being ignored.

        Fixed bug in transitive_subjects.

        Updated some of the test cases that where not up to date.

        async_load now adds more http header and error information to
        the InformationStore.


2003/02/11
        RELEASE 1.2.3

        Fixed bug in load methods where relative URLs where not being
        absolutized correctly on Windows.

        Fixed serializer so that it throws an exception when trying to
        serialize a graph with a predicate that can not be split.


2003/02/07
        RELEASE 1.2.2

        Added an exists method to the BackwardCompatibility mixin.

        Added versions of remove, remove_triples and triples methods
        to the BackwardCompatility mixin for TripleStores that take an
        s, p, o as opposed to an (s, p, o).


2003/02/03
        RELEASE 1.2.1

        Added support for parsing XMLLiterals.

        Added support for proper charmod checking (only works in
        Python2.3).

        Fixed remaining rdfcore test cases that where not passing.

        Fixed windows bug in AbstractInformationStore's run method.


2003/01/02
        RELEASE 1.2.0

        Added systemID, line #, and column # to error messages.

        BNode prefix is now composed of ascii_letters instead of letters.

        Added a bsddb backed InformationStore.

        Added an asyncronous load method, methods for scheduling context
        updates, and a run method.


2002/12/16
        RELEASE 1.1.5 

        Introduction of InformationStore, a TripleStore with the
        addition of context support.

        Resource __getitem__ now returns object (no longer returns a
        Resource for the object).

        Fixed bug in parser that was introduced in last release
        regaurding unqualified names.


2002/12/10
        RELEASE 1.1.4 

        Interface realigned with last stable release.

        Serializer now uses more of the abbreviated forms where
        possible.

        Parser optimized and cleaned up.

        Added third index to InMemoryStore.

        The load and parse methods now take a single argument.

        Added a StringInputSource for to support parsing from strings.

        Renamed rdflib.BTreeTripleStore.TripleStore to
        rdflib.BTreeTripleStore.BTreeTripleStore.

        Minor reorganization of mix-in classes.


2002/12/03
        RELEASE 1.1.3 

        BNodes now created with a more unique identifier so BNodes
        from different sessions do not collide.

        Added initial support for XML Literals (for now they are
        parsed into Literals).
        
        Resource is no longer a special kind of URIRef.

        Resource no longer looks at range to determine default return
        type for __getitem__. Instead there is now a get(predicate, default)
        method.
        

2002/11/21
        RELEASE 1.1.2 

        Fixed Literal's __eq__ method so that Literal('foo')=='foo' etc.        
        
        Fixed Resource's __setitem__ method so that it does not raise
        a dictionary changed size while iterating exception.


2002/11/09
        RELEASE 1.1.1 

        Resource is now a special kind of URIRef 
        
        Resource's __getitem__ now looks at rdfs:range to determine
        return type in default case.

        

2002/11/05
        RELEASE 1.1.0 # A new development branch

        Cleaned up interface and promoted it to SIR: Simple Interface
        for RDF. 

        Updated parser to use SAX2 interfaces instead of using expat directly.

        Added BTreeTripleStore, a ZODB BTree TripleStore backend. And
        a default pre-mixed TripleStore that uses it.

        Synced with latest (Editor's draft) RDF/XML spec. 

        Added datatype support.

        Cleaned up interfaces for load/parse: removed generate_path
        from loadsave andrenamed parse_URI to parse.


2002/10/08
        RELEASE 0.9.6 # The end of a development brant

        BNode can now be created with specified value.

        Literal now has a language attribute.

        Parser now creates Literals with language attribute set
        appropriately as determined by xml:lang attributes.


        TODO: Serializer-Literals-language attribute

        TODO: Change __eq__ so that Literal("foo")=="foo" etc

        TripleStores now support "in" operator. 
        For example: if (s, p, o) in store: print "Found ", s, p, o

        Added APIs/object for working at level of a Resource. NOTE:
        This functionality is still experimental

        Consecutive Collections now parse correctly.
        
2002/08/06
        RELEASE 0.9.5

        Added support for rdf:parseType="Collection"

        Added items generator for getting items in a Collection

        Renamed rdflib.triple_store to rdflib.TripleStore to better follow
        python style conventions.
        
        Added an Identifier Class
        
        Moved each node into its own Python module.

        Added rdflib.util with a first and uniq function.

        Added a little more to example.py

        Removed generate_uri since we have BNodes now.

        
2002/07/29
        RELEASE 0.9.4

        Added support for proposed rdf:nodeID to both the parser and
        serializer.

        Reimplemented serializer which now nests things where
        possible.

        Added partial support for XML Literal parseTypes.

        
2002/07/16
        RELEASE 0.9.3

        Fixed bug where bNodes where being created for nested property
        elements when they where not supposed to be.

        Added lax mode that will convert rdf/xml files that contain bare
        IDs etc. Also, lax mode will only report parse errors instead of
        raising exceptions.

        Added missing check for valid attribute names in the case of
        production 5.18 of latest WD spec.

        
2002/07/05
        RELEASE 0.9.2
        
        Added missing constants for SUBPROPERTYOF, ISDEFINEDBY.

        Added test case for running all of the rdf/xml test cases.

        Reimplemented rdf/xml parser to conform to latest WD.


2002/06/10
        RELEASE 0.9.1

        There is now a remove and a remove_triples (no more overloaded
        remove).

        Layer 2 has been merged with layer 1 since there is no longer a
        need for them to be separate layers.

        The generate_uri method has moved to LoadSave since triple stores
        do not have a notion of a uri. [Also, with proper bNode support on
        its way the need for a generate_uri might not be as high.]

        Fixed bug in node's n3 function: URI -> URIRef.

        Replaced string based exceptions with class based exceptions.

        Added PyUnit TestCase for parser.py

        Added N-Triples parser.

        Added __len__ and __eq__ methods to store interface.
        
        
2002/06/04
        RELEASE 0.9.0

        Initial release after being split from redfootlib.


