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<p class=MsoNormal style='margin-bottom:0in;margin-bottom:.0001pt;line-height:
normal'><span style='font-size:12.0pt;font-family:"Segoe UI","sans-serif"'>Hello
IronPython Community,<br>
<br>
We have just released IronPython 2.0 Alpha 3. This release is a snapshot of the
on-going progress with IronPython 2.0 and the DLR. The most significant changes
in this release include more work to use dynamic sites from IronPython and
improved evaluation mode support. This release is also timed to closely
coincide with the IronRuby release and provides a near-identical DLR release.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-bottom:0in;margin-bottom:.0001pt;line-height:
normal'><span style='font-size:12.0pt;font-family:"Segoe UI","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-bottom:0in;margin-bottom:.0001pt;line-height:
normal'><span style='font-size:12.0pt;font-family:"Segoe UI","sans-serif"'>The
improved support for dynamic sites from IronPython has resulted in a
performance improvement for a number of scenarios including method lookup,
indexing operations, and member access. We expect future releases to continue
with this trend to get improved performance in future versions. There are no
significant changes to the underlying dynamic site infrastructure in this release
but we expect some changes there which will also improve performance in future
releases.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-bottom:0in;margin-bottom:.0001pt;line-height:
normal'><span style='font-size:12.0pt;font-family:"Segoe UI","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-bottom:0in;margin-bottom:.0001pt;line-height:
normal'><span style='font-size:12.0pt;font-family:"Segoe UI","sans-serif"'>This
release also contains near complete support for evaluation support. There are
now only a handful of corner cases where evaluation support is incomplete. Evaluation
support enables the DLR to interpret code instead of compiling it and executing
it resulting in faster run times for code that is executed once or rarely
executed at all.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-bottom:0in;margin-bottom:.0001pt;line-height:
normal'><span style='font-size:12.0pt;font-family:"Segoe UI","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-bottom:0in;margin-bottom:.0001pt;line-height:
normal'><span style='font-size:12.0pt;font-family:"Segoe UI","sans-serif"'>There
are also a number of small tweaks to the underlying DLR infrastructure as it
continues to evolve. None of the changes in this release are radical and most
external language implementations should be able to easily move from Alpha 2 to
Alpha 3.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-bottom:0in;margin-bottom:.0001pt;line-height:
normal'><span style='font-size:12.0pt;font-family:"Segoe UI","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-bottom:0in;margin-bottom:.0001pt;line-height:
normal'><span style='font-family:"Segoe UI","sans-serif"'>Note: Again due to
dependencies upon APIs that are not present in Silverlight 1.1 Alpha (released
at MIX) you won’t be able to re-build this release for use with
Silverlight. As both products stabilize more we expect better compatibility
between releases.</span><span style='font-size:12.0pt;font-family:"Segoe UI","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal style='margin-bottom:0in;margin-bottom:.0001pt;line-height:
normal'><span style='font-size:12.0pt;font-family:"Segoe UI","sans-serif"'><br>
You can download IronPython v2.0 Alpha 3 at <a
href="http://www.codeplex.com/IronPython/Release/ProjectReleases.aspx?ReleaseId=3749">http://www.codeplex.com/IronPython/Release/ProjectReleases.aspx?ReleaseId=3749</a>
<o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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