Thanks to grand effort of Shyotl, in this version we add support for Server Side Appearance. This, also known as Server Side Baking, is an upcoming system in Second Life which changes how avatars are displayed. Viewers which do not support this system will soon no longer be able to display other avatars, and users running such viewers will also not look proper to everyone else.

This release lays the groundwork for a number of technologies which will be with us for time to come. Feedback on this release will be important to make sure our next release, for server-side baking support, is widely compatible and works smoothly.

This time, no new features. We tried our best not to break anything and only fix prevalent crash issues.

This release concentrates on performance and stability of the viewer, with enhancements by Shyotl and myself. Can't quite promise to be as good as in good old times, but we do hope it got a bit better! Also new:

After a super long wait, we present you the most often requested feature ever, ability to wear multiple of the same clothes layer. Most useful for alpha layers, which you'll need if you wear multiple rigged meshes! Right now we're the one and only viewer with V1 based UI to make it in the most future-proof and Viewer 3 compatible manner - Current Outfit Folder is fully supported and you can change between other modern viewers and Singularity without messing up your looks! The bulk of this work has been done by Shyotl. Also in this release:

I have received two reports that the advertisement box on the left, below the donation button, would contain a fake generic download button. This would make people think, that's where they could download Singularity. Instead, they got a load of spyware - people would be asked to download 7Zip installer which has multiple instances of spyware in it. Note, original 7Zip installer from 7zip.org is clean and does NOT contain any spyware, so it has been added extra by malicious people. We are not responsible for the contents of advertisement boxes, the advertisements are chosen for us by Google. There are two possibilities of what could have happened:

This release is more experimental than usually, because of being in development for 4 months without intermediate releases and most changes being under the hood. Besides, it is missing all of the wished-for V2/V3 functionality except for Mesh display, in particular Mesh upload isn't there yet. Internally, work to support multiple clothes per layer, MOAP, and region Windlight is on its way and slowly making their way into the codebase. Again, Shyotl did the bulk of the incredible amount of work on this version, contributing almost 68000 new lines of code! I believe we were the first to publish source code of Mesh support on a V1-UI viewer in beginning of August, and Mesh builds of Astra and Fronteer viewers were directly based on that. Short list of changes:

• Mesh, visible and wearable! Does not require hardware skinning unlike Phoenix and CoolVL! Suitable for integrated GPUs.
  
• Renderer updated yet again to move from mixed-pipeline to shader-only pipeline on capable hardware, analogous to V3, by Shyotl.
• Editor support for more LSL/OSSL functions, extra WindLight presets, by Fritigern
• A texture fetch and bake bug fix, based on code by Robin Cornelius, improvements in settings and notecard editor, based on code by Henri, and some more original fixes contributed by Player
• Collapse button in inventory, new web-browser look based on idea by McCabe, by myself, Tigh and Shyotl
• New grid list editor, experimental megaregion support by Revolution.
  

So, we have new contributors! Fritigern Gothly, Revolution Smythe and Player Dagostino, welcome :) Also, i intend to switch to a rapid release schedule again, so we can address incoming bug reports quickly. And don't let anyone tell you we're dead, we haven't been dead for a single day!

Version 1.6.0(1) fixes insta-crash on GPU drivers without GL Shading Language support (e.g. low end Intel on Windows) and apparent inability to add OpenSim grids.

Version 1.6.0(2) fixes the bulk of the graphics glitches.

Version 1.6.0(3) fixes a few dozen various bugs and adds complete French translation by Nomade Zhao and Selvone Franizzi

It's now out for all three systems. This was supposed to be a bug-fix release, unfortunately it seems to have new bugs too as of 1.5.10(1), so it will again be a rolling release, updated as it gets fixed.

So here it is. We have NO intention of letting this viewer die. We will have mesh - can't promise it'll be quite in time, but it will be there soon. As for other changes which can impact viewer functionality - if it's moderately easy, we'll fix it as soon as the problem appears. If not, we wait for a few days to figure out what Lindens are doing and whether we can expect them to fix it on their end, but in general, expect us to figure out a solution to any upcoming problem, with perhaps a few days of pain in between.

Here is a more elaborate write-up on this topic.

Some users report that their anti-virus barks at file SLPlugin.exe in Singularity 1.5.9(1) for Windows. There is certainly no virus in there, it's a False Positive.

Here and here are automated scan results of this file from multiple anti-viruses. Draw your own conclusions.