I saw this on the Cloud Party page.

Second Life and Virtual Worlds
I saw this on the Cloud Party page.

Lots of bits and pieces are coming out. CHUI has made it to the main viewer. That is allowing lots of things to move forward. The Materials System now has a Project Viewer (link in left column – currently alpha version per Oz Linden – if used to edit existing content it may break it). We are seeing Third Party Viewers come out with Server Side Appearance (Baking). See Kokua 3.5.1 now with CHUI and SSA. The HTTP package is moving forward and the Interest List updates are everywhere.
Honour has a post about things changing in Group Management.

Today there will be no rollout to the main channel. None of the Release Candidates made it past testing. So, those packages are getting updates Wednesday and will run for another week.
Blue Steal and Le Tigre will continue to run the package with the new scripting functions for animation overriding. There are some changes to improve how these functions work with other scripted items, such as pose balls.*
Magnum had the update to HTTP Protocols. That package gets some bug fixes and will continue to run on Magnum.
Drax apparently went to Rust and was so impressed he had to make a short video.
I think it is pretty neat.
[youtube 1X7OBGSxaJM]
There are rumors that the new Materials System will push objects that use the new materials into the Land Impact Accounting system. Some have found that when playing with Materials the Land Impact can escalate radically on physics cost. When using Alpha Masking the new materials can drive the Land Impact WAY UP. Plus a single prim, even phantom, can cost 500+ Physics LI. The image below shows a flattened sphere that costs 560 LI.

Andrew said some things that suggest items using Materials are planned to use the Land Impact Cost Accounting system. So, I would guess part of the reason we have this Alpha version viewer is to find problems they have missed. The Land Impact one is a big one.
I’ve updated some of the software that runs this site. The big differences are in the spam blockers for comments. Let me know if something has changed or stopped working. Thanks.
In Late January I posted about the Materials System and gave an example of what the Build Panel might look like. See: Second Life Materials System 2013-4.

As it turns out this example is pretty accurate. Back in August 2012 I was explaining what Normal and Specular Maps do. See: Second Life Materials System Announced.