Nokogiri version 1.8.4 has been released!
This release fixes a memory leak related to creating namespaced nodes which
was introduced waaaaay back in v1.5.7 (March 2013). If you're building or
modifying XML documents by inserting nodes with namespaces, it's probably
worth upgrading.
Thanks to @paddor for finding this memory leak!
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# 1.8.4 / 2018-07-03
## Bug fixes
* [MRI] Fix memory leak when creating nodes with namespaces. (Introduced in
v1.5.7) [#1771]