Changes

2.5 (unreleased)

Nothing changed yet.

2.4 (2019-10-09)

Added an option to pass pairs of (element, attr) as unique attributes for tree matching. Exposed this option on the command line, too.

2.3 (2019-02-27)

Added a simple xmlpatch command and API.
Multiple updates to documentation and code style

2.2 (2018-10-12)

A workaround for dealing with top level comments and the xml formatter

2.1 (2018-10-03)

Changed the substitution unicode character area to use the Private Use Area in BMP(0), to support narrow Python builds
Added --unique-attributes argument.

2.1b1 (2018-10-01)

Added options for faster node comparisons. The "middle" option is now default, it had very few changes in matches, but is much faster.
Implemented a Fast Match algorithm for even faster diffing.
Speed improvements through caching
Fixed a bug where MoveNode actions sometimes was in the wrong order
Added an InsertComment action, as comments require different handling, so it's easier to deal with them this way. You can still use DeleteNode and UpdateTextIn for them with no special handling.
When renaming tags the XMLFormatter will mark them with "diff:rename" instead of making a new tag and deleting the old.
Tags will now be moved first, and updated and renamed later, as the new tag name or attributes might not be valid in the old location.

2.0 (2018-09-25)

A complete, bottom-up, pure-python rewrite
New easy API
100% test coverage
New output formats:
- A new default output format with new actions
- A format intended to be parseable by anyone parsing the old format.
- XML with changes marked though tags and attributes
xmldiff 2.0 is significantly slower than xmldiff 0.6 or 1.0, the emphasis so far is on correctness, not speed.