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Items</a></li> <li class="toctree-l3"><a class="reference internal" href="#removed-core-image-function">Removed Core Image Function</a></li> </ul> </li> <li class="toctree-l2"><a class="reference internal" href="4.1.1.html">4.1.1</a></li> <li class="toctree-l2"><a class="reference internal" href="4.1.0.html">4.1.0</a></li> <li class="toctree-l2"><a class="reference internal" href="4.0.0.html">4.0.0</a></li> <li class="toctree-l2"><a class="reference internal" href="3.4.0.html">3.4.0</a></li> <li class="toctree-l2"><a class="reference internal" href="3.3.2.html">3.3.2</a></li> <li class="toctree-l2"><a class="reference internal" href="3.3.0.html">3.3.0</a></li> <li class="toctree-l2"><a class="reference internal" href="3.2.0.html">3.2.0</a></li> <li class="toctree-l2"><a class="reference internal" href="3.1.2.html">3.1.2</a></li> <li class="toctree-l2"><a class="reference internal" href="3.1.1.html">3.1.1</a></li> <li class="toctree-l2"><a class="reference internal" 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href="../_sources/releasenotes/4.2.0.rst.txt" rel="nofollow"> View page source</a> </li> </ul> <hr/> </div> <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article"> <div itemprop="articleBody"> <div class="section" id="id1"> <h1>4.2.0<a class="headerlink" href="#id1" title="Permalink to this headline">¶</a></h1> <div class="section" id="added-complex-text-rendering"> <h2>Added Complex Text Rendering<a class="headerlink" href="#added-complex-text-rendering" title="Permalink to this headline">¶</a></h2> <p>Pillow now supports complex text rendering for scripts requiring glyph composition and bidirectional flow. This optional feature adds three dependencies: harfbuzz, fribidi, and raqm. See the <a class="reference external" href="../installation.html">install documentation</a> for further details. This feature is tested and works on Unix and Mac, but has not yet been built on Windows platforms.</p> </div> <div class="section" id="new-optional-parameters"> <h2>New Optional Parameters<a class="headerlink" href="#new-optional-parameters" title="Permalink to this headline">¶</a></h2> <ul class="simple"> <li><code class="xref py py-meth docutils literal notranslate"><span class="pre">PIL.ImageDraw.floodfill()</span></code> has a new optional parameter: threshold. This specifies a tolerance for the color to replace with the flood fill.</li> <li>The TIFF and PDF image writers now support the <code class="docutils literal notranslate"><span class="pre">append_images</span></code> optional parameter for specifying additional images to create multipage outputs.</li> </ul> </div> <div class="section" id="new-decompressionbomb-warning"> <h2>New DecompressionBomb Warning<a class="headerlink" href="#new-decompressionbomb-warning" title="Permalink to this headline">¶</a></h2> <p><a class="reference internal" href="../reference/Image.html#PIL.Image.Image.crop" title="PIL.Image.Image.crop"><code class="xref py py-meth docutils literal notranslate"><span class="pre">PIL.Image.Image.crop()</span></code></a> now may raise a DecompressionBomb warning if the crop region enlarges the image over the threshold specified by <code class="xref py py-attr docutils literal notranslate"><span class="pre">PIL.Image.MAX_PIXELS</span></code>.</p> </div> <div class="section" id="removed-deprecated-items"> <h2>Removed Deprecated Items<a class="headerlink" href="#removed-deprecated-items" title="Permalink to this headline">¶</a></h2> <p>Several deprecated items have been removed.</p> <ul class="simple"> <li>The methods <code class="xref py py-meth docutils literal notranslate"><span class="pre">PIL.ImageWin.Dib.fromstring()</span></code>, <code class="xref py py-meth docutils literal notranslate"><span class="pre">PIL.ImageWin.Dib.tostring()</span></code> and <code class="xref py py-meth docutils literal notranslate"><span class="pre">PIL.TiffImagePlugin.ImageFileDirectory_v2.as_dict()</span></code> have been removed.</li> <li>Before Pillow 4.2.0, attempting to save an RGBA image as JPEG would discard the alpha channel. From Pillow 3.4.0, a deprecation warning was shown. From Pillow 4.2.0, the deprecation warning is removed and an <code class="xref py py-exc docutils literal notranslate"><span class="pre">IOError</span></code> is raised.</li> </ul> </div> <div class="section" id="removed-core-image-function"> <h2>Removed Core Image Function<a class="headerlink" href="#removed-core-image-function" title="Permalink to this headline">¶</a></h2> <p>The unused function <code class="docutils literal notranslate"><span class="pre">Image.core.new_array</span></code> was removed. This is an internal function that should not have been used by user code, but it was accessible from the python layer.</p> </div> </div> </div> </div> <footer> <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation"> <a href="4.1.1.html" class="btn btn-neutral float-right" title="4.1.1" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right"></span></a> <a href="4.2.1.html" class="btn btn-neutral float-left" title="4.2.1" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left"></span> Previous</a> </div> <hr/> <div role="contentinfo"> <p> © Copyright 1995-2011 Fredrik Lundh, 2010-2018 Alex Clark and Contributors </p> </div> Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/rtfd/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>. </footer> </div> </div> </section> </div> <script type="text/javascript"> jQuery(function () { SphinxRtdTheme.Navigation.enable(true); }); </script> </body> </html>