>

<p>
In Go 1, the <code>NewWriterXxx</code> functions in
<a href="/pkg/compress/flate"><code>compress/flate</code></a>,
<a href="/pkg/compress/gzip"><code>compress/gzip</code></a> and
<a href="/pkg/compress/zlib"><code>compress/zlib</code></a>
all return <code>(*Writer, error)</code> if they take a compression level,
and <code>*Writer</code> otherwise. Package <code>gzip</code>'s
<code>Compressor</code> and <code>Decompressor</code> types have been renamed
to <code>Writer</code> and <code>Reader</code>. P