0.2.3-beta
* Handle single-record MARC21XML files with "record" as the root element

0.1.1-alpha
* Add File_MARC_Record::toXML() method for generating MARCXML output
* Add File_MARCXML class for reading MARCXML source
* Add tests for MARCXML methods

0.1.0-alpha
* Split each class out into its own file
* Do not return anything from constructors

0.0.9-alpha
* Separate getFields() from getField(), getSubfields() from getSubfield()
  to avoid forcing users to test is_array() after every call
* Add addWarnings() / getWarnings() for records to avoid throwing an
  exception for a non-fatal error
* Fix examples, touch up phpdoc in preparation for call for votes

0.0.8-alpha
* Switch to PEAR_Exception for error handling

0.0.7-alpha
* Implement useful key() overrides for key=>value iteration through
  fields and subfields 
* Adjust to new Structures_LinkedList_Double names

0.0.6-alpha
* Remove package globals, define class constants & static vars instead
* Change addField/Subfield() to append..(), prepend...(), and insert...()

0.0.5-alpha
* Work towards a more consistent API (delete getAllSubfields)
* Make PCRE expressions in getFields() and deleteFields() optional.
* Make duplicate() actually return a deep copy of a record.
* Stronger, better, faster (now with typehints)
* Iterate with foreach() everywhere now

0.0.4-alpha
* Adjust to Structures_Linked_List package name change and minor API changes
* Adhere to PEAR CS (thanks PHP_CodeSniffer!)
* Correct sloppy use of references (thanks E_STRICT!)
* Okay, this time real error handling using PEAR_ErrorStack
* Prepare first package for PEPR

0.0.3-alpha
* Split MARC into separate File_MARC and Structure_Linked_List packages (with corresponding renaming of classes and constants)
* Adopt PEAR naming conventions (s/MARC/File_MARC/)
* Initial stab at PEAR_ErrorStack error handling

0.0.2-alpha
* Fix marc_004.phpt: explicitly compare object references with === operator
* Document all constants.
* Fix MARC_Field::deleteSubfield() function
* Add this ChangeLog

0.0.1-alpha
* First publicly available release, based on MARC decoding algorithm from
the emilda.org php-marc package with a completely new API and class hierarchy
