Klayout

* Enhancement: %GITHUB%/issues/1869 Adding a new option, -to or --top-output to strmxor
* Bug: %GITHUB%/issues/1870 Do not allow editing on invalid layers
* Bug: %GITHUB%/issues/1874 Crash when copying a cell to another layout
* Bug: %GITHUB%/issues/1877 Rounding introduces DRC error in LEF/DEF via
* Bug: %GITHUB%/issues/1880 Enhancing GDS2 writer float conversion such that less rounding occurs
* Bug: %GITHUB%/issues/1885 --subst-char option in strm2oas was not accepting "do not substitute"
* Bug: %GITHUB%/issues/1886 Small documentation fix
* Bug: %GITHUB%/issues/1887 Small documentation fix
* Bug: %GITHUB%/issues/1899 Adding global operators for QPoint on Qt6 and more
* Enhancement: %GITHUB%/issues/1900 Help/about dialog content selectable
* Bug: %GITHUB%/issues/1902 Two potential memory issues fixed
* Bugfix: LEF/DEF reader recognizes existing layers by name now
This happened to be an issue if you were reloading a LEF/DEF layout as
name layers got added as duplicates.
* Bugfix: In DRC, with '+' as target layout, maintain the original active cell view
This way, DRC can be re-run on the original layout, but each time generating a new output cellview.

* Bug: %GITHUB%/issues/1864 Copy & paste allows creating a recursive hierarchy
* Bug: %GITHUB%/issues/1860 A bug about layer undo
* Bug: %GITHUB%/issues/1857 Crash when closing application with property dialog open
* Bug: %GITHUB%/issues/1853 Cell.write and Layout.write are very slow on Windows if there are gigantic polygons in the cell
* Bug: %GITHUB%/issues/1847 Little problem with File::Setup/Application::Customize Menu
* Bug: %GITHUB%/issues/1840 "start" and "finish" became reserved names in PCells in version 0.29.5
* Enhancement: %GITHUB%/issues/1836 Allow the usage of Cell.shapes(LayerInfo(...))
* Bug: %GITHUB%/issues/1835 Single PCell file cannot be read
* Bug: %GITHUB%/issues/1832 Netlist device combination / simplify requests
* Enhancement: Print file name before warnings and add to errors (good when reading multiple files from command line)
* Bugfix: Disallow empty filenames or writing to directories as this has severe side effects
* Bugfix: Further trying to improve stability when debugging PCells in the IDE (still not perfect)
* Enhancement: More variants of Layoutproperties_id, added Layoutproperties_hash and Layoutproperties_array
* Enhancement: DRC - more variants for Layerinsert, such as Texts and integer-type shapes
* Bugfix: Properties dialog did not apply some changes when switching the object node
* Bugfixes: Mute diagnostic warnings on Python 3.12 debug builds, fixed a potential crash during Python module cleanup
* Bugfix: Fixed a crash in the properties editor happening while selecting object type nodes in certain cases
* Enhancement: Cleaned up and enhanced documentation of LayoutToNetlist class
* Enhancement: Less agressive polygon splitting in deep mode DRC/LVS by default
"max_area_ratio" can be a negative value now, which means that skinny diagonals
are not split into a large number of triangles. This is the default.

* Bug: %GITHUB%/issues/1814 Application freezes on Ctrl+Select
* Bug: %GITHUB%/issues/1816 interacting operation between EdgePairs and Region (or edges)
EdgePair layers in DRC can now tested for interacting with edges and polygons
(includes: inside, outside). New methods for EdgePairs: EdgePairsinside etc.
* Bug: %GITHUB%/issues/1819 Discrete soft small rendering
* Bug: %GITHUB%/issues/1823 "Select all" was not working as expected for texts, API "select_all" was not working at all.
* Bugfix: Typo: ParameterStateicon was named 'tooltip'
* Enhancement: Allowing RBA::Net objects for DRCLayernets as well
* Enhancement: const versions of Layoutcell and Layouttop_cell(s)
* Enhancement: Generic GSI method and _const_cast to make a const
reference into a non-const one (use with care)
* Bugfix: 'netter' function in DRC wasn't working as described - it raised an error
* Enhancement: Provide a warning message when closing the window while an operation is ongoing
* Bugfix: Avoid a segfault in the property editor due to invalid array access
* Bugfix: Properties dialog: stop handling 'Enter' key - use 'Ok' to close it
* Enhancement: Some improvements on Ascend and Descend:
- Ascend now walks up the unspecific tree too
- Descend enters cell if selected transiently
- New feature "Descend into" which also selects the child cell
as current top

* Bug: %GITHUB%/issues/1784 Spice throws error at midline semicolon comments
* Enhancement: %GITHUB%/issues/1790 Support for recursive PCell instances
* Bug: %GITHUB%/issues/1804 Instantation path highlight mismatch with view window
* Bug: %GITHUB%/issues/1768 Change "angle constraint" of box and ellipse ruler templates to "any angle" by default
* Enhancement: %GITHUB%/issues/1776 Undo/redo from List
* Enhancement: %GITHUB%/issues/1779 Marker Browser: make the state of the "By Cell" or "By Category" tree persistent
* Bug: %GITHUB%/issues/1799 Can't set cell properties by script
* Bug: %GITHUB%/issues/1794 MetaInfo with (gigantic) size makes klayout write a faulty gds
* Bug: %GITHUB%/issues/1793 inconsistent results in width_check when calling by keyword argument
* Bug: %GITHUB%/issues/1782 Internal error on "nan" values in PCells
* Enhancement: GDS2 writer now observes limitations of the file format
and raises more errors on value over- or underflows. This should specifically
avoid issues writing certain large arrays which are legal inside KLayout, but
illegal in GDS2.
* Bugfix: Small bugfix: 'Delete selected stacks' was not working from stack tech component editor's context menu
* Enhancement: Trying to improve "grab" behavior of partial selection.
In certain situations is was difficult to grab the partial selected edges.
Instead other edges would be selected. Now, it is enough to click inside the
bounding box of the partial selection.
* Bugfix: Including more GeneratorExit and StopAsyncIteration in the ignored exceptions for Python.
These exception now do not make the debugger stop any longer.
* Bugfix: Properly transferring ownership for variant to Python/Ruby translation.
This is required for some Python and Ruby bindings, when objects are
transferred through generic arrays.
* Enhancement: Added Regionbeing_shapes_rec and Regionbegin_merged_shapes_rec.
Mainly for being able to retrieve shapes with properties from Regionnets
* Enhancement: Convenience methods Shapeproperties, Layoutproperties, Cellproperties, Instanceproperties.
These method will obtain all properties as a hash.
* Enhancement: Added Netlisttop_circuit and Netlisttop_circuits convenience methods.
These methods will deliver the single top circuit or a list of top circuits.
* Enhancement: "Copy cells" now has an option to mute the dialog (shallow/deep)
and the dialog is only shown if there are subcells
* Enhancement: Added Shapesbreak_polygons, Layoutbreak_polygons, Regionbreak_polygons.
These methods split large polygons into smaller pieces.

* Bug: %GITHUB%/issues/1780 Crash on deleting multiple selected shapes or items

* Bug: %GITHUB%/issues/1774 ImportError: cannot import name '__version__' from 'klayout'
* Bug: %GITHUB%/issues/1771 Python exception formatting: backtrace missing for Python >=3.11.7
* Bug: %GITHUB%/issues/1757 Fixed memory issue
* Enhancement: %GITHUB%/issues/1756 Configure timeout for HTTP(S) requests
A new environment variable has been introduced to configure the
HTTP(S) timeout: KLAYOUT_HTTP_TIMEOUT (timeout value in seconds,
default is 10s)
* Bug: %GITHUB%/issues/1769 Typo fixed
* Bug: %GITHUB%/issues/1751 Code sanity issue fixed
* Bug: %GITHUB%/issues/1750 Code sanity issue fixed
* Enhancement: %GITHUB%/issues/1747 Transformations on negative floats/ints
* Bug: %GITHUB%/issues/1743 strmxor shows no difference, klayout xor shows 85
* Enhancement: %GITHUB%/issues/1741 Tooltip strings for PCell parameters
* Bug: %GITHUB%/issues/1733 Instance selecion in object properties does not match with view port object highlight
* Enhancement: %GITHUB%/issues/1655 Marker object lifetime management
* Enhancement: DRC - step-wise size with "inside" and "outside" constraint
This feature is handy for implementing latch-up rules more efficiently.
* Bugfix: OASIS reader - avoiding slight rounding of DBU In python read/write cycle (discussion-2526)
* Bugfix: Proper tracking of references of RecursiveShapeIterator.
Related to issue 1742, but not directly.
* Bugfix: Symlinks in the salt paths might have lead to macro duplication
* Bugfix: Ruby binding - "return" inside block was behaving like "break".
Now, "return" will leave the current function.
* Enhancement: LVS layer naming now also accepts an optional layer/datatype information.
* Enhancement: XOR performance enhanced in deep mode for "almost same" inputs.
* Bugfix: Macro debugger now does not prevent paint events and
screen refresh should work while debugging. In addition, the debugger
does not deadlock the desktop when using the help browser's search
function. Side effects are yet unknown - maybe debugging Qt event
handlers now becomes less stable.
Issue 1770 addresses a problem introduced during this effort and also
fixed in this release.
* Bugfix: During modal dialogs, the debugger's run/stop and step buttons were not working.
* Enhancement: DRC size/sized now also accepts sizing mode as string.
For example "layer.sized(1.um, 'square_limit')" will work now.
Previously, this argument has been ignored. This will make the GF180 DRC deck work properly.