This is OrcaSlicer V1.9.0-alpha Release.

What's Changed

• New smooth spiral vase mode by @andrewboktor in https://github.com/SoftFever/OrcaSlicer/pull/3091
  It's no secret that OrcaSlicer, as well as other Slic3r forks, has struggled with spiral vase mode, especially with models featuring sloped surfaces and large line widths. This new PR, introduced by @andrewboktor, presents an improved smooth spiral vase mode inspired by Ultimaker Cura. It effectively eliminates visible seams in spiral vases.
  
  

• Port PrusaSlicer's Measure & Cut gizmos by @Noisyfox in https://github.com/SoftFever/OrcaSlicer/pull/2603 Originally developed by the PrusaSlicer team and beloved by many users, the Measure & Cut gizmos have now been ported to OrcaSlicer, thanks to @Noisyfox.
  

• Port Emboss & SVG gizmo from PrusaSlicer by @Noisyfox in https://github.com/SoftFever/OrcaSlicer/pull/2819
  

• Add option to "Reverse only internal perimeters" under the reverse on odd feature to reduce part warping by @igiannakas in https://github.com/SoftFever/OrcaSlicer/pull/2722
  This "Reverse only internal perimeters" option is an extension to reverse on odd reversal is not executed on external perimeters. The primary use case for this PR is to greatly reduce part stresses as they are now distributed in alternating directions, which should reduce warping, while maintaining external wall quality. This can be very useful for warp prone material, like ABS/ASA and also for elastic filaments like TPU and Silk PLA.
  
  

• Show used filament length and weight per line type by @Noisyfox in https://github.com/SoftFever/OrcaSlicer/pull/3246
  

• Add "Cancel Objects" support for Prusa/Marlin/RRF firmware by @SoftFever in https://github.com/SoftFever/OrcaSlicer/pull/3164
  

• Alternate extra wall by @igiannakas in https://github.com/SoftFever/OrcaSlicer/pull/3196
  This setting adds an extra wall every other layer. This way the infill gets caught between the walls, resulting in:

• Theoretically, stronger prints due to better infill anchoring.
• Allows for the infill/wall overlap to be set to low values without compromising object strength while maintaining external surface quality.
• It may contribute to improving water tightness of models as the gaps between the top and bottom layers and the walls are overlapping.
  

• QoL: Make sidebar collapsible, resizable, movable, floatable and dockable by @Noisyfox in https://github.com/SoftFever/OrcaSlicer/pull/2972
  

• Add ColPic encoding for thumbnails(;gimage/;simage) as metadata. This will enable showing preview images on QIDI/Elegoo/etc machines. QidiSlicer's implementation of this format is referenced. by @SoftFever

• Adds rotate on stl import by @iitsalex in https://github.com/SoftFever/OrcaSlicer/pull/3116
  

• Adds overview for custom gcodes like pause, change filament, custom #2191 by @niklasb22 in https://github.com/SoftFever/OrcaSlicer/pull/2728
  

• Added a new handy model: Stanford bunny This model is remixed by myself to make it 3d printable. Original model can be found at: https://graphics.stanford.edu/data/3Dscanrep/
  

• Add a new option "emit_machine_limits_to_gcode" by @SoftFever in https://github.com/SoftFever/OrcaSlicer/pull/3236

• Fixed an bug that old bed texture was not cleard when switching to printer without texture assigned by @SoftFever in https://github.com/SoftFever/OrcaSlicer/pull/3259

• Fix PNG build plate texture not rendering on AMD GPUs by @Noisyfox in https://github.com/SoftFever/OrcaSlicer/pull/2780

• Show wireframe in MMU painter gizmo by @Noisyfox in https://github.com/SoftFever/OrcaSlicer/pull/2808

• Fix crash when closing application by @igiannakas in https://github.com/SoftFever/OrcaSlicer/pull/2904

• Fuzzy skin fixes + on/off for first layer by @andrewboktor in https://github.com/SoftFever/OrcaSlicer/pull/2903

• Change the how to manage show/hide gcode window by @Noisyfox in https://github.com/SoftFever/OrcaSlicer/pull/2704

• Add option to disable emitting M73 gcode (#2114) by @Noisyfox in https://github.com/SoftFever/OrcaSlicer/pull/2940

• Add zhop to PA pattern by @stew675 in https://github.com/SoftFever/OrcaSlicer/pull/2952 Fixed a regression issue that wrong accel was used for PA Line by @SoftFever

• Fix unicode path for nanosvg by @SoftFever in https://github.com/SoftFever/OrcaSlicer/pull/3179

• Fixed a bug that caused curled edge detection not to work as expected for left facing edges when using Arachne. Enabled fan speed control for curled overhangs by @igiannakas in https://github.com/SoftFever/OrcaSlicer/pull/3034

• Updated PA test to address crash when default line width was zero by @igiannakas in https://github.com/SoftFever/OrcaSlicer/pull/3055

• make fan percentages a float by @lbibass in https://github.com/SoftFever/OrcaSlicer/pull/3087

• Fix "Extra length on restart" setting is ignored when wipe is enabled by @igiannakas in https://github.com/SoftFever/OrcaSlicer/pull/3065

• Eliminating many very tiny extrusion segments which led to blemishes in thin-wall models sliced with Arachne by @sethml in https://github.com/SoftFever/OrcaSlicer/pull/3014

• Updated wipe logic to respect retraction speed during wiping by @igiannakas in https://github.com/SoftFever/OrcaSlicer/pull/3094

• Do not limit the max window size by @Noisyfox in https://github.com/SoftFever/OrcaSlicer/pull/3149

• Bug fix: VFA Test fix by @igiannakas in https://github.com/SoftFever/OrcaSlicer/pull/3230

• Fix tutk logs location (#3209) by @Noisyfox in https://github.com/SoftFever/OrcaSlicer/pull/3248

• Fix macOS deps build issues by @Ocraftyone in https://github.com/SoftFever/OrcaSlicer/pull/2541

• Rework Github Build Actions by @Ocraftyone in https://github.com/SoftFever/OrcaSlicer/pull/2566

• Fix toolbar rendering on Windows by @Noisyfox in https://github.com/SoftFever/OrcaSlicer/pull/2784

• Update README.md by @eltociear in https://github.com/SoftFever/OrcaSlicer/pull/2815

• Another fix to the preview shell by @Noisyfox in https://github.com/SoftFever/OrcaSlicer/pull/2821

• Fix cmake error by @jbroadus in https://github.com/SoftFever/OrcaSlicer/pull/2871

• Update BuildLinux.sh by @Ocraftyone in https://github.com/SoftFever/OrcaSlicer/pull/2919

• QOL: Dev 1.9 - Regroup Advanced Quality Options by @igiannakas in https://github.com/SoftFever/OrcaSlicer/pull/2962

• Only regenerate bed triangles if actually changed by @Noisyfox in https://github.com/SoftFever/OrcaSlicer/pull/3039

• Fix value passed to SPEED in air-filteration.md macro. by @IntenseWiggling in https://github.com/SoftFever/OrcaSlicer/pull/3133

• Do not limit the max window size (#2889) by @Noisyfox in https://github.com/SoftFever/OrcaSlicer/pull/3142

• Fix window maximize when task bar is on the left. by @Noisyfox in https://github.com/SoftFever/OrcaSlicer/pull/3148

• Use windows API to copy files by @Noisyfox in https://github.com/SoftFever/OrcaSlicer/pull/2923

• Fix color blending of preview shells by @Noisyfox in https://github.com/SoftFever/OrcaSlicer/pull/2799

• Various infill improvements by @Noisyfox in https://github.com/SoftFever/OrcaSlicer/pull/2716

• Set PointerAlignment to Left by @Ocraftyone in https://github.com/SoftFever/OrcaSlicer/pull/2948

• Fix build error with CGAL 5.6 with -std=gnu++17 on Fedora by @jbroadus in https://github.com/SoftFever/OrcaSlicer/pull/3045

• Disable the cooling moves for snapmaker printers by @macdylan in https://github.com/SoftFever/OrcaSlicer/pull/3081

• Fix btt tft thumbnail regression by @SoftFever in https://github.com/SoftFever/OrcaSlicer/pull/3056

• fix pwsh variable in CICD by @Ocraftyone in https://github.com/SoftFever/OrcaSlicer/pull/3188

• Trigger task progress update on paint event as well by @Noisyfox in https://github.com/SoftFever/OrcaSlicer/pull/3237

• Fix crash on MacOS when clicking filament dropdown in object list by @Noisyfox in https://github.com/SoftFever/OrcaSlicer/pull/3205

Printer profiles:

• the layer height should be 0.24 not 0.2 by @pellcorp in https://github.com/SoftFever/OrcaSlicer/pull/2779
• Adding new nozzle profiles for the Creality Ender-5 Pro (2019) by @pwschattenberg in https://github.com/SoftFever/OrcaSlicer/pull/2817
• Update Snapmaker profiles - includes disruptive changes by @macdylan in https://github.com/SoftFever/OrcaSlicer/pull/2939
• Initial add of Neptune 4 Plus profile by @Kalooth in https://github.com/SoftFever/OrcaSlicer/pull/2980
• Update snapmaker files by @macdylan in https://github.com/SoftFever/OrcaSlicer/pull/3009
• add bed models for voron 2.4 variants by @agravelot in https://github.com/SoftFever/OrcaSlicer/pull/3075
• FIX: K1/Max profiles use consistently higher accelerations by @StdVectorBool in https://github.com/SoftFever/OrcaSlicer/pull/3052
• New profile for Creality Ender 3 V3 KE by @bistory in https://github.com/SoftFever/OrcaSlicer/pull/3216
• Additional Nozzles for the Creality Ender-5 Pro (2019) by @pwschattenberg in https://github.com/SoftFever/OrcaSlicer/pull/2964
• New profile for Creality Ender 3 V3 SE by @bistory in https://github.com/SoftFever/OrcaSlicer/pull/3180
• Fixed Ender 3 V3's default materials by @bistory in https://github.com/SoftFever/OrcaSlicer/pull/3218
• Update QIDI profile to display preview images on printer's monitor
• Neptune4 profile updates, support preview image and some setting changes(need firmware changes)
• Fixed an issue that Qidi ABS-GF10 is visible for all vendors
• Fixed Prusa MK4 bed texture

localization:

• kor_translation update by @crwusiz in https://github.com/SoftFever/OrcaSlicer/pull/2794
• Russian translation update OrcaSlicer V1.8.0 Release. by @AndylgTom in https://github.com/SoftFever/OrcaSlicer/pull/2873
• Update OrcaSlicer_fr.po by @discip in https://github.com/SoftFever/OrcaSlicer/pull/2874
• fix typo "Improt Preset" and add new de for 1.9dev by @hliebscher in https://github.com/SoftFever/OrcaSlicer/pull/2968
• Update OrcaSlicer_ru.po by @Armaelius in https://github.com/SoftFever/OrcaSlicer/pull/3007
• Italian translation update by @FabioForcina in https://github.com/SoftFever/OrcaSlicer/pull/3006
• kor translation update by @crwusiz in https://github.com/SoftFever/OrcaSlicer/pull/2991
• French language update by @bistory in https://github.com/SoftFever/OrcaSlicer/pull/3019
• Update OrcaSlicer_tr.po by @olcayoren in https://github.com/SoftFever/OrcaSlicer/pull/3017
• Turkish language sentences were added for web wizard. by @olcayoren in https://github.com/SoftFever/OrcaSlicer/pull/3047
• Turkish words were edited. by @olcayoren in https://github.com/SoftFever/OrcaSlicer/pull/3161
• fix de and other localization files by @hliebscher in https://github.com/SoftFever/OrcaSlicer/pull/3159
• Update OrcaSlicer_fr.po by @bistory in https://github.com/SoftFever/OrcaSlicer/pull/3177
• Turkish words were edited. by @olcayoren in https://github.com/SoftFever/OrcaSlicer/pull/3184
• Italian translation update by @FabioForcina in https://github.com/SoftFever/OrcaSlicer/pull/3185
• Turkish translation update by @olcayoren in https://github.com/SoftFever/OrcaSlicer/pull/3197
• kor translation update by @crwusiz in https://github.com/SoftFever/OrcaSlicer/pull/3199
• Update Spanish translation by @tadeu2 in https://github.com/SoftFever/OrcaSlicer/pull/3231
• kor translation update by @crwusiz in https://github.com/SoftFever/OrcaSlicer/pull/3163
• fix Bamabu to Bambu by @hliebscher in https://github.com/SoftFever/OrcaSlicer/pull/3166
• Update Spanish translation by @tadeu2 in https://github.com/SoftFever/OrcaSlicer/pull/3212

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