News in 4.0.0, 2018-03-10
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* GtkSourceView class: respect the GtkTextView:accepts-tab property.
* New syntax highlighting definition file for: Groovy and Tera templates.
* Improvements to the syntax highlighting of: Erlang and Fortran.
* Provide an Uncrustify configuration file for the GtkSourceView C coding style.
* Various other improvements and small fixes.
* Translation updates.