Version 2.6.1

• Old test corpora deleted
• README updated
• S inside CP-REL fixed

Version 2.6.0

• Switched from GNU GPLv3 to MIT license, in accordance with the requirements of the Icelandic Government's 5-Year Language Technology Programme
• Python 3.6 is now a requirement; Python 3.5 is no longer supported
• Renamed repository from ReynirPackage to GreynirPackage
• Many enhancements to the context-free grammar
• Type annotations added
• Added circuit breaker to abandon the parsing of very complex and time-consuming sentences, via a ParseError exception
• Documentation additions and formatting improvements
• Added force_number parameter to NounPhrase class
• Added error attribute to the _Sentence class
• Many other smaller enhancements

Version 2.5.0

• Lots of type annotations added
• Adapted to Tokenizer 2.1.0 which no longer splits a final period off an abbreviation that ends a sentence
• Significant additions to vocabulary; minor additions to grammar
• Added ability to dump and load _Sentence instances, including tokens, to and from JSON

Version 2.4.0

• Added test for foreign sentences, i.e. sentences where less than 60% of the words are found in BÍN (or resolved by the composite word algorithm). Such sentences are now marked by an error code instead of being parsed.
• More flexibility in specifying the maximum length of sentences to be parsed. The (overridable) default is now a maximum of 90 tokens in a sentence.
• Added and enhanced functions for generating lemmas from parsed sentences. New properties include _Sentence.lemmas_and_cats and _Sentence.categories, and the method Greynir.parse_tokens() has been added.
• Grammar and vocabulary improvements.
• Better handling of abbreviations and multi-word prepositions.
• Improved type annotations in the main Greynir API.
• Added tests.
• New features documented and examples added.

Version 2.3.1

• Added type annotations to ReynirPackage's public API; now compatible with the mypy static type checker
• Added BIN_Db.lookup_lemma() method in bindb.py
• Enhanced pattern matching functionality in matcher.py and simpletree.py
• Various grammar and vocabulary additions

Version 2.2.0

• Added progress_func parameter to Greynir.submit() and Greynir.parse() functions, for progress update callbacks while a parse is ongoing
• Performance regression under PyPy 7.3 fixed by refactoring token/terminal matching code in binparser.py.
• Split matcher.py and moved SimpleTree class to simpletree.py.
• Allowed category of word forms denoting prepositions to be restricted via Phrases.conf.
• Switched to new-style CFFI callbacks from C++ code to Python for better performance and reliability

Version 2.1.0

• Added NounPhrase class, allowing noun phrases to be easily encapsulated and inflected in various forms
• Additions to vocabulary in ord.compressed
• Updated documentation and README
• Updated copyright notices

Version 2.0.1

• Changed name of main class to Greynir (with Reynir still being available as an alias)
• Updated documentation to use Greynir name instead of Reynir
• Branding and styling update of Sphinx-based documentation, added custom.css style sheet
• No change in functionality

Version 2.0.0

• Adaptation to Tokenizer 2.0.0
• Better handling of hyphenated words, including þingmenn og -konur, málfræði-greining, etc.
• Added terminal types for USERNAME, SERIALNUMBER and MOLECULE tokens
• Various bug fixes and additions to test suite

Version 1.9.0

• Many improvements to grammar and vocabulary
• The gender neutral pronoun hán is now supported in the grammar
• Parse trees are now annotated with accumulative node scores
• sequence terminals added, matching any of 1,2,3..., a,b,c..., i,ii,iii...