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-<sect1 id="release-5-00">
- <title>Release notes for version 5.00 (April 2001)</title>
-
- <sect2>
- <title>User-visible compiler changes</title>
- <itemizedlist>
- <listitem>
- <para>GHCi, the new interactive environment on top of GHC, has
- been added (<xref linkend="ghci">).</para>
- </listitem>
- <listitem>
- <para>New <option>––make</option> flag added (<xref
- linkend="make-mode">).</para>
- </listitem>
- <listitem>
- <para>The native code generator now supports Sparc in addition
- to x86.</para>
- </listitem>
- <listitem>
- <para>We now make it clear which options can be placed in an
- OPTIONS pragma. See <xref
- linkend="static-dynamic-flags">.</para>
- </listitem>
- <listitem>
- <para><option>-fglasgow-exts</option> no longer implies
- <option>-package lang</option>.</para>
- </listitem>
- <listitem>
- <para><option>-noC</option> is no more.</para>
- </listitem>
- <listitem>
- <para><option>-hi</option> and <option>-nohi</option> are no more.</para>
- </listitem>
- <listitem>
- <para>The concept of “packages” has been
- generalised and extended. Packages may be installed or
- removed from an existing GHC installation using the new
- <command>ghc-pkg</command> tool. See <xref
- linkend="packages">.</para>
- </listitem>
- <listitem>
- <para>Initial unicode support: the <literal>Char</literal>
- type is now 31 bits. We don't yet have support for unicode
- I/O.</para>
- </listitem>
- <listitem>
- <para><option>-v</option> now takes an optional numeric
- argument indicating the level of verbosity (<xref
- linkend="options-help">). <option>-dshow-passes</option> has
- been removed.</para>
- </listitem>
- <listitem>
- <para>Parallel list comprehensions added. See <xref
- linkend="parallel-list-comprehensions">.</para>
- </listitem>
- <listitem>
- <para>Functional dependencies are now fully implemented.
- </para>
- </listitem>
- <listitem>
- <para>Profiling: please use
- <literal>{-# SCC ".." #-}</literal>
- rather than <literal>_scc_ "..."</literal>. The latter
- will be phased out in due course.</para>
- </listitem>
- <listitem>
- <para>A new experimental optimisation, SpecConstr, is turned
- on with <literal>-O2</literal>.</para>
- </listitem>
- <listitem>
- <para>Please report bugs using the <ulink
- url="http://sourceforge.net/projects/ghc/">SourceForge bug
- tracker</ulink> instead of
- <email>glasgow-haskell-bugs@haskell.org</email> if
- possible.</para>
- </listitem>
- <listitem>
- <para>Documentation changes: there's now a useful Flag
- Reference section, see <xref linkend="flag-reference">.</para>
- </listitem>
- <listitem>
- <para>Many, many, bugfixes.</para>
- </listitem>
- </itemizedlist>
- </sect2>
-
- <sect2>
- <title>New experimental features</title>
-
- <itemizedlist>
- <listitem>
- <para>A “front panel” for GHC-compiled programs
- displays real-time graphs of memory behaviour in a GTK+
- window. You need to recompile the RTS with front panel
- support to use this.</para>
- </listitem>
- </itemizedlist>
- </sect2>
-
- <sect2>
- <title>FFI changes</title>
- <itemizedlist>
- <listitem>
- <para><command>hsc2hs</command> added (<xref linkend="hsc2hs">).</para>
- </listitem>
- <listitem>
- <para>FFI libraries have been updated to the latest proposal
- from the FFI task force. Too many changes to list here, see
- the docs: <xref linkend="Foreign">.</para>
- </listitem>
- </itemizedlist>
- </sect2>
-
- <sect2>
- <title>User-visible library changes</title>
- <itemizedlist>
- <listitem>
- <para><function>putMVar</function> now blocks if the
- <literal>MVar</literal> is already full. The
- <literal>PutFullMVar</literal> exception no longer exists.
- A non-blocking version of <function>putMVar</function>,
- <function>tryPutMVar</function>, has been added (<xref
- linkend="MVars">).</para>
- </listitem>
- <listitem>
- <para>The <literal>Int</literal> and
- <literal>Integer</literal> types now have instances of
- <literal>Bits</literal> (<xref linkend="Bits">).</para>
- </listitem>
- <listitem>
- <para>Package <literal>hssource</literal> has been added. It
- contains a Haskell 98 abstract syntax, parser, lexer and pretty
- printer. No documentation yet.</para>
- </listitem>
- <listitem>
- <para>The methods <literal>fromInt</literal> and
- <literal>toInt</literal>, which used to be in class
- <literal>Num</literal> but exported from module
- <literal>Int</literal>, are no longer in class
- <literal>Num</literal>. They're still available from module
- <literal>Int</literal>, however.</para>
-
- <para>In most cases, there should be no benefit from using
- <literal>fromInt</literal> instead of
- <literal>fromIntegral</literal>, which is specialised for all
- integral types.</para>
- </listitem>
- <listitem>
- <para>New modules: DiffArray (<xref linkend="DiffArray">),
- StorableArray (<xref linkend="StorableArray">),
- MonadList, MonadCont (no documentation yet).</para>
- </listitem>
- </itemizedlist>
- </sect2>
-
- <sect2>
- <title>Build system changes</title>
-
- <itemizedlist>
- <listitem>
- <para>The <literal>WithGhcHc</literal> setting in
- <literal>build.mk</literal> has been replaced by the
- <literal>––with-ghc=<replaceable>ghc</replaceable></literal>
- option to <literal>configure</literal>. The new option
- <emphasis>must</emphasis> be used if you intend to use
- anything except “<literal>ghc</literal>” to
- bootstrap GHC, in order that the build system can figure out
- what version of GHC you're using.</para>
- </listitem>
- <listitem>
- <para>Source distributions are now made by doing <literal>make
- distclean</literal> in a build tree, instead of requiring a
- linked build tree.</para>
- </listitem>
- </itemizedlist>
- </sect2>
-
- <sect2>
- <title>Internal changes</title>
- <itemizedlist>
- <listitem>
- <para>Many internal compiler changes: too many to list
- here.</para>
- </listitem>
- <listitem>
- <para>The old perl driver has been removed and replaced by a
- driver in the compiler proper.</para>
- </listitem>
- <listitem>
- <para>We now use GMP 3 instead of GMP 2 for
- arbitrary-precision integer support.</para>
- </listitem>
- <listitem>
- <para>Several libraries rewritten to use the FFI.</para>
- </listitem>
- </itemizedlist>
- </sect2>
-
-</sect1>
-
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