Bug fixes:

    Fixed regression in Quick Slice and Slice to SVG commands (#2122)
    Fixed regression in cut
    Fixed regression causing variable layer heights to be ignored (#2136)
    Workaround for upstream library bug causing Combine STL files to crash

New features:

    New algorithm for single-width thin walls, now faster and more accurate
    New algorithm for linear gap fill: no more shaking and adaptive extrusion width!
    New option for turning autocentering off in the plater
    Ability to set per-object and per-region settings
    New object editor window for composing multi-part objects (no need to use AMF files anymore)
    Support for modifier meshes to apply distinct local settings by intersecting them with the main model
    Import/export entire configuration bundles
    Per-region settings are now written to AMF files and read back in (they could be even assigned from a CAD)
    New option for generating internal interface shells between multi-part objects (useful for translucent objects or manually-designed support material)
    New pillars support material for saving time and material and easier removal

Improvements:

    Huge internal refactoring for better modularity and less memory usage
    More detailed thumbnails in plater
    Prevent user from saving a preset named "- default -" which could lead to confusion
    Real-time validation for most config options

Changes:

    The Spiral Vase option is now more strict because it will require user to set other options in a compatible way for it to work. This might change again in the future.
    The Fill Density option is now expressed as a percentage and uses a combobox

New features:

    Ability to cut models in two with a slicing plane (resulting parts can be also exported)
    Support material is automatically excluded below successful bridges and only added where strictly needed in order to make anchors for potential bridges; this results in much lighter support material for parts having flat overhanging areas

Improvements:

    Support material distance from object was reduced and made more consistent
    A base flange is added below pillars support material in order to connect them on the build plate
    Spiral vase mode is prevented automatically for multi-island layers (#1938)

Bug fixes:

    Fixed an upstream bug in the Clipper library causing some random perimeter segments to be swapped in order (#1834)
    Bridge detection was choosing bad orientation in some cases
    Sometimes islands were not completed fully before moving onto the next one (#1137)
    Gap fill was not inserted in the corrected order before leaving an island (#1907)
    A regression caused the Default Extrusion Width option to be ignored (#1958)
    The [timestamp] placeholder in filename was not updated at every single job (#1957 #1995)
    A regression caused bad loading of multi-extruder values in GUI (#1984)
    Fixed regression and ambiguity about multi-value placeholders like [first_layer_temperature_1] (#1899)
    Fixed regression causing random lack of hole perimeters on Windows (#1950)
    Fixed random crash when closing the Object Settings window

This is an experimental release. Help us testing!
For the full list of new features see also the release notes for 1.1.0, 1.1.2 and 1.1.3.
-
Improvements:

    Holes in object footprint are now ignored when generating raft to make it more continuous

Changes:

    Retract on layer change is automatically disabled with Spiral vase is enabled
    The command line --save option will now only save the options that were explicitely specified on command line, without the implicit defaults

Bug fixes:

    Fixed a bug in an upstream library causing crashes or missing perimeter segments in rare situations (#2028)
    Fixed a crash when skirt was contained in brim area (#2058)
    Fixed a regress causing bridge flow to be incorrect when a default extrusion width was specified (#2027)
    M73 was exceeding 100% when multiple objects were printed together (only for Makerware/Sailfish) (#1912)