v1.45.0

Added

• Add support for circular networks in sankey traces [#3406, #3535, #3564]
• Add matching axes behavior to cartesian axes via new axis attribute and
  new splom attribute dimensions attribute matches [#3506, #3565]
• Add attributes alignmentgroup and offsetgroup to bar, histogram, box
  and violin traces to make cross-trace positioning easier [#3529]
• Add support for orthographic projections in gl3d subplots via new attribute
  scene.camera.projection.type [#3550]
• Add cmid and zmid colorscale attributes to pick the middle of the color
  range during the auto-colorscale computations [#3549]
• Add support for sankey grouping via new attribute groups [#3556]
• Add support for sankey concentration colorscales [#3501]
• Add support for hovertemplate for all gl3d traces, contour,
  heatmap, histogram*, parcats, scattercarpet and splom traces [#3530]
• Add hovertext attribute to all traces that support hover 'text',
  for consistency with traces that already have an hovertext attribute [#3553]
• Add support for layout meta templating in trace name,
  rangeselector, updatemenus and sliders labels as well as
  within hovertemplate [#3548]
• Add support for opacity to isosurface traces [#3545]
• Add mapbox.layers attributes: minzoom, maxzoom, line.dash and symbol.placement [#3399]

Changed

• More consistency pass down WebGL pixel ratio to gl3d renderers,
  this leads to better axis line and error bar rendering on some hardwares [#3573]
• Performance boost for isosurface trace generation [#3521]
• Export template string regex of Lib [#3548]
• Do no cluster points in scattergl trace with less than 1e5 data pts,
  this fixes reported "missing data points" scenarios [#3578]

Fixed

• Fix selection outline clearing during cartesian axis-range relayout calls
  (bug introduced in 1.42.0) [#3577]
• Fix modebar interactions on graphs with scatter3d traces with
  marker colorscales (bug introduced in 1.44.0) [#3554]
• Fix axis automargin for superimposed subplots (bug introduced in 1.44.3) [#3566]
• Fix polar angular tick labels placement [#3538]
• Fix scattergl updates after selections for trace with on-graph text [#3575]
• Fix responsive: true config option for graph with WebGL traces [#3500]
• Fix modebar.bgcolor for vertical modebars with wrapped buttons [#3500]
• Fix ohlc and candlestick auto-range computations [#3544]