2026.12

2026.12 — July 2, 2026

Enhancements

• scott — Added new Tip of the Day info for recent release updated items
• derwin12 — Sequencer: add "Select Effects incl SubModels" to model right-click menu (#6618)
• derwin12 — Lua automation: expose all video export formats (High Quality MP4, Lossless RGB, ProRes 4444, HD ProRes) via exportModel / exportModelWithRender
• scott — Moving Head effect: new Pattern tab generates pan/tilt from parametric shapes (Circle, Eight, Diamond, Lissajous, etc.) modeled on QLC+ EFX, with a value-curve-animatable rotation
• scott — Moving Head effect: Enable Shutter checkbox (in the Control tab, for both RGB and color wheel) holds the shutter open at the model's Shutter On Value; Auto Shutter still takes over when active. Check Sequence warns if a shutter channel has a Shutter On Value of 0
• derwin12 — Effect sequence wizard now adds a default New Timing track (#6612)
• derwin12 — Add Timing Track option to Single Strand chase (cycles per timing mark) (#4771)
• derwin12 — Allow timeline to zoom out to see any effects outside the duration (#6528)
• derwin12 — Sync smart remote type across port block for controllers requiring it (#3468)
• scott — First run with no show folder set: offer to create and use a default show folder at Documents/xLights (or pick one)
• scott — Update dialog can download the new release installer from GitHub and run it (instead of opening a browser)
• scott — Show the active OpenGL backend (ANGLE vs native) in the About dialog and startup log
• cybercop23 — Add set default option for sequence duration and fps (#5233)
• cybercop23 — Sequencer timeline fits the full sequence to the viewport width on load, keep same width for 20/40 fps.
• jessica12ryan — Show last input/output dates in the controller properties (#5728)
• cybercop23 — Add cylinder shape and offset to cube model (#4369)
• neil — Add ability to link props into "sets" so they move as one (#3703)
• derwin12 — House Preview: right-click "Keep on Top" keeps the popped-out window above other apps (#5533)
• AlexB — During a multi-effect drag, only the colliding ghost effects turn red instead of all of them (#6553)
• neil — Bulk Edit Rotate skips models whose type doesn't support that axis and reports the skipped models (#6521)
• derwin12 — Grey out Symmetrize/Combine Strands in the SubModels menu when they don't apply (#6554)
• dkulp — Crash reports now record the C++ exception type (demangled) and message, including the error code and file paths for filesystem/system errors

Bug Fixes

• derwin12 — Fix uploadFPPConfig/uploadSequence LUA commands failing with a hostname instead of a numeric IP
• derwin12 — Fix video/image/shader filenames containing commas being truncated when saved (#6638)
• derwin12 — Wheel of Effects was not honoring the Reset Effects on Effect change nor setting defaults
• derwin12 — Fix floating sequencer panes shifting position on macOS after switching to the Layout tab and back (#6631)
• dkulp — Wait for renders to abort before deleting models/groups so a render worker can't crash on freed model data
• dkulp — Fix waveform render crash when the audio/zoom view list is rebuilt mid-paint (stale view index)
• dkulp — Fix crash hovering the layout preview in 3D mode when the model list contains a null entry
• dkulp — Fix crash mousing over the sequencer grid when a row's effect layer is momentarily unavailable
• dkulp — Fix crash selecting a controller in the Setup list when the named controller could not be found
• dkulp — Fix intermittent crash with a 3Dconnexion mouse when motion/button events referenced a window being destroyed on the main thread
• dkulp — Fix ColorWash/Bars/Shockwave/Spirals crash writing past the pixel buffer when rendered into a variable/oversized sub-buffer
• dkulp — Fix crash loading a malformed OBJ mesh that references vertex/normal/texcoord data it does not contain
• dkulp — Fix crash hovering the 3D layout preview while placing a new model before its nodes are populated
• dkulp — Fix crash/heap corruption opening a sequence while a render from the previous sequence was still finishing
• dkulp — Fix crash saving-with-render or changing sequence timing while a render is still running (sequence data was freed out from under the render threads)
• derwin12 — Allow multiple timing tracks to be active simultaneously in master view (was limited to one)
• derwin12 — Fix missing video display and re-render in Select Videos panel
• derwin12 — Fix State/Face effect dropdowns resetting on icon click (#6595)
• cybercop23 — Ensure channels are recalculated when merging base models to show models
• derwin12 — Fix corrupted Export House Preview on Windows with odd dimensions
• derwin12 — Crash in Check Sequence with Models that had extra Layers
• derwin12 — Missing video files now show in red in the Select Videos panel with Re-select/Bulk Find options
• agfazio — Auto scroll during the drag + copy on drag operations
• derwin12 — Spinner model with large hollow was not dimensionally correct (#6558)
• agfazio — Fix shader dynamic parameters not persisting (#6567)
• cybercop23 — Restore the ability to slide multiple effects with shift key (#6576)
• dkulp — Fix crash closing/switching sequences with a Moving Head effect selected (programmatic default reset fired live update handlers that dereferenced a stale model)
• dkulp — Fix crash clicking a sequencer row heading when the visible row information was momentarily unavailable
• charlie — Fix crash when pressing Escape to cancel a polyline drag during creation that leaves the model with a single point
• dkulp — Fix crash importing/downloading a DmxServo3Axis model (factory didn't recognize the legacy type alias); unrecognized/malformed model files now cancel the import with an error instead of crashing
• dkulp — Don't crash drawing when a Metal pipeline fails to compile (e.g. older macOS); skip the draw instead
• dkulp — Fix crash drawing a texture on the OpenGL backend (Windows/Linux) when the vertex accumulator or texture was null; skip the draw instead, matching the existing drawPrimitive guards
• dkulp — Fix crash logging an OpenGL shader compile/link failure when the "opengl" logger was never registered (e.g. on the iPad/Metal-only path); fall back to the default logger
• derwin12 — Linux: fix Controllers/Layout property panes permanently freezing (no repaint) after editing a dropdown-style property (#6215, #4175)
• cybercop23 — Fix model rename in Layout not preserving position in non-master Display Element views (#6574)
• cybercop23 — Fix Export Faces/States/SubModels from Layout right-click menu creating ghost duplicate submodels instead of replacing same-name entries; extra faces/states/submodels unique to the target model now survive (#6587)
• cybercop23 — Fix Sort By Name/Location in the model group panel incorrectly adding a blank entry at the top (#6588)
• agfazio — Fix Double click to expand on group
• neil — Fix Replace Model "keep position and size" being ignored for locked, base-linked, and two-point models; base-linked models are now blocked as replace targets (#6548)
• derwin12 — Fix possible crash in the Moving Head effect panel when recalling/loading settings
• derwin12 — Fix crash writing the preview GIF for a preset
• agfazio — Fix crash with CUDA/NVDEC hardware decoded video (#6560)
• derwin12 — Linux: fix crash on startup from a Moving Head panel resize before it is shown on screen (#6586)
• derwin12 — Refresh the Display Elements panel after renaming a model so the new name shows immediately
• agfazio — Sequencer drag now clamps effects flush against blocking neighbors instead of bouncing back; group stays selected after drop; Ctrl+drag adds to selection (#6556)
• agfazio — Fix being unable to move effects on timing/lyric tracks after the ghost drag-to-move change (#6620)
• derwin12 — Windows: graceful exit instead of crash on Snapdragon/ARM when OpenGL 3.x is unavailable, without blocking resize repaints (#6630)

Changes

• dkulp — Windows installer and executables are now Authenticode signed (Azure Trusted Signing), reducing SmartScreen/antivirus false positives
• derwin12 — Remove Keep Channel Numbers for FPP devices (#5459)
• scott — Preferences dialog (Windows/Linux) uses a list of pages on the left with icons instead of tabs across the top