- Update to 4.2.4 (2018-08-03)
+ Features added
* GH#259: Allow using ``pkg-config`` for build configuration.
Patch by Patrick Griffis.
+ Bugs fixed
* LP#1773749, GH#268: Crash when moving an element to another document with
``Element.insert()``.
Patch by Alexander Weggerle.
- Update to 4.2.3
+ Bugs fixed
* Reverted GH#265: lxml links against zlib as a shared library again.
- Update to 4.2.2
+ Bugs fixed
* GH#266: Fix sporadic crash during GC when parse-time schema validation is used
and the parser participates in a reference cycle.
Original patch by Julien Greard.
* GH#265: lxml no longer links against zlib as a shared library, only on static builds.
Patch by Nehal J Wani.