Notes from the Simulator User Group meeting summarising the Nectarine deployment problem at the network layer, status of game_control and viewer plans, continued Lua compatibility work, region-crossing test plans, and in-world object-grab discussion.
These notes form a summary of the items discussed, and are not intended to be a full transcript.
A video of the meeting by Pantera is embedded at the end of this summary – my thanks to her for providing it.
They are more brainstorming / general discussion sessions.
# Meeting snapshot Tuesday, September 29, 2026. This brief consolidates the technical points covered in the session and the immediate follow-ups engineers are pursuing.
ObjectUpdate UDP messages. The bug can affect viewers, including the 26.4 viewer. Reproducing the issue reliably has been difficult, which has slowed finalising a fix. At the time of the meeting, a decision on the best fix route was pending and a candidate fix was likely to reach RC channels on September 30.
Leviathan reported approval to include game_control in the 26.5 viewer, expected to be the last viewer release of 2026 once it surfaces. The game_control code still needs merging into the 26.5 branch. Game_control enables standard game controller use in Second Life: avatar movement, camera control, vehicles, and similar functions. It does not extend to advanced features like virtual keyboards or full LSL control for complex controller inputs.
Related UX items Leviathan is considering:
A fix for viewer-side problems tied to the Nectarine ObjectUpdate messages (affecting 26.4) is also on the work list.
Rider Linden is back on-call and looking into a couple of simulator crashers reported recently. Harold Linden (Lua) is focused on backwards compatibility with script serialization, aiming to prevent breaking rolls when future Lua updates deploy. The work intends to reduce the chance that a scripting update will break existing scripts on regions.
Engineering is assembling a selection of regions specifically for region-crossing tests, likely delivered as a Snack RC channel (a mini set of regions for focused testing). That effort has been delayed while the Nectarine network issue remains the priority.
Pepper Linden has a proposal to patch region-crossing code to remove an avenue for a performance exploit caused by misbehaving clients. That proposal is part of the region-crossing conversation and is intended to reduce server-side risks when testing or deploying crossing improvements.
Leviathan Office Hour: Tuesday, October 6, 2026. Formal SUG meeting: Tuesday, October 13, 2026.
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