Version 2.48.0

- The following is a summary of changes between 2.46.x and 2.48.0.
  For full details, please see the 2.47.x release notes below.

- This release requires at least Rust 1.39.

- #379 - New API, rsvg_handle_set_stylesheet(), to set a CSS
  stylesheet independent of the SVG document.

- #510 - support opacity in patterns.

- Librsvg's XML parser now supports namespaces (xmlns), and is
  stricter than before about it.  Files may fail to parse if there are
  attributes or elements with namespace prefixes (e.g. foo:bar instead
  of plain bar), but without a corresponding namespace declaration
  (e.g. xmlns:foo="http://example.com/foo").

  This may happen especially with incorrectly-written SVGs that use
  xlink:href or xi:include attributes without the corresponding
  namespace declarations.  If you run into this, just add the
  following to your toplevel SVG element:

      <svg xmlns="http://www.w3.org/2000/svg"
           xmlns:xlink="http://www.w3.org/1999/xlink"
	   xmlns:xi="http://www.w3.org/2001/XInclude">
           ^^^^^^^^^ these ones

- Librsvg no longer depends on libcroco, and now does all CSS
  processing using Rust crates from Mozilla Servo.  As a result,
  librsvg can now handle much more complex CSS selectors than before.

- Link-time optimization (LTO) is disabled by default on release
  builds, as this increased build time too much.  Downstream
  distributors may want to turn it back on in the toplevel Cargo.toml.

- #515 (CVE-2019-20446) - Librsvg now has limits on the number of
  loaded XML elements, and the number of referenced elements within an
  SVG document.  This is to mitigate malicious SVGs which try to
  consume all memory, and those which try to consume an exponential
  amount of CPU time.

- Many bugfixes; please see the 2.47.x release notes below.

Version 2.47.4

- (#240) - Fix rsvg-convert's multipage PDF output when the zoom
  option is used (Sven Neumann).

- (#547) - Do not stop rendering if an <image> element references a
  nonexistent file.  This fixes a number of Open Clipart cases.

- (#558) - Compute the font-size cascade correctly when there are "em"
   #and "ex" units involved.

- Updated the man page for rsvg-convert (Sven Neumann).