v1.31.1

Fixed

• Fix IE and Edge SVG toImage support [#2068]
• Return empty set during selections of visible: false traces [#2081]
• Fix scroll glitch in table traces [#2064]
• Fix handling of 1D header values in table [#2072]
• Fix table line style defaults [#2074]
• Do not attempt to start drag on right-click [#2087]
• Phase out alignment-baseline attributes in SVG text nodes [#2076]
• Listen to document events on drag instead of relying on cover-slip node [#2075]

v1.31.0

Added

• Add table trace type [#2052]
• Add geo.center making geo views fully reproducible using layout attributes [#2030]
• Add lasso and select-box drag modes to scattergeo and choropleth traces [#2030]
• Add lasso and select-box drag modes to bar and histogram traces [#2045]
• Add scale option to Plotly.toImage and Plotly.downloadImage [#1979]
• Add plot-schema.json to dist/[#1999]

Changed

• Throttle lasso and select-box events for smoother behavior [#2040]
• Harmonize gl3d and gl2d zoom speed with cartesian behavior [#2041]

Fixed

• Fix numerous restyle and relayout bugs [#1999]
• Fix handling of extreme off-plot data points in scatter lines [#2060]
• Fix hoverinfo array support for scattergeo, choropleth, scatterternary and scattermapbox traces [#2055]
• Fix Plotly.plot MathJax promise chain resolution [#1991]
• Fix legend double-click trace isolation behavior for graphs with visible: false traces [#2019]
• Fix legend visibility toggling for traces with groupby transforms [#2019]
• Fix single-bin histogram edge case [#2028]
• Fix autorange for bar with base zero [#2050]
• Fix annotations arrow rendering when graph div is off the DOM [#2046]
• Fix hover for graphs with scattergeo markers outside 'usa' scope [#2030]
• Fix handling of cross anti-meridian geo lonaxis ranges [#2030]
• Fix miter limit for lines on geo subplots [#2030]
• Fix marker.opacity handling for scattergeo bubbles [#2030]
• Fix layout animation of secondary axes [#1999]
• Fix sankey hover text placement for empty link.label items [#2016]
• Fix sankey rendering of nodes with very small values [#2017, #2021]
• Fix sankey hover label positioning on pages that style the 'svg-container' div node [#2027]
• Fix aggregation transforms restyle calls [#2031]

v1.30.1

Fixed

• Fix shapes on overlaid axes [#1975]
• Correctly clear cartesian axis titles on full axis updates [#1981]
• Make cartesian hover spikes work when no tick labels are present [#1980]

v1.30.0

Added

• Add aggregate transform [#1924]
• Add constraintext attribute for bar traces [#1931]
• Add axis layer attribute to ternary axes [#1952]
• Add cross-trace matching auto-binning logic to histogram traces [#1944]
• Add data/layout/config api to Plotly.toImage to generate a static
  graph without having to render an interactive graph first [#1939]
• Add nameformat attribute to groupby transforms to set pattern by which
  grouped traces are named [#1919]

Fixed

• Fix hover label exponents [#1932, #1949]
• Fix scatter fill with isolated endpoints [#1933]
• Fix parcoords axis tick scale when ticktext is unordered [#1945]
• Fix sankey with 4 multi-links or more [#1934]
• Fix exponent labels beyond SI prefixes [#1930]
• Fix image generation for marker gradient legend items [#1928]
• Fix parcoords image generation when multiple parcoords graphs
  are present on page [#1947]
• Ignore bare closing tags in pseudo-html string inputs [#1926]

v1.29.3

Fixed

• Fix groupby / filter interactions when filter includes target data [#1892]

v1.29.2

Fixed

• Add fallback for ArrayBuffer.isView fixing gl2d and gl3d rendering
  in environments that don't support it (e.g. RStudio) [#1915]

v1.29.1

Fixed

• Fix axis line rendering when showticklabels is false (bug introduced in 1.29.0) [#1910]
• Fix histogram auto bin restyle [#1901]
• Fix colorbar edge case that caused infinite loops [#1906]

v1.29.0

Added

• Add touch interactions to cartesian, gl2d and ternary subplots including for
  select and lasso drag modes [#1804, #1890]
• Add support for contour line labels in contour and contourcarpet traces [#1815]
• Add support for select and lasso drag modes on scattermapbox traces [#1836]
• Add double click interactions to mapbox subplots [#1883]
• Add reset view and toggle hover mode bar buttons to mapbox subplots [#1883]
• Add support for array marker.opacity settings in scattermapbox traces [#1836]
• Add namelength layout and trace attribute to control the trace name's
  visible length in hover labels [#1822]
• Add cliponaxis attribute to scatter and scatterternary traces to allow
  markers and text nodes to be displayed above their subplot's axes [#1861]
• Add axis layer attribute with 'above traces' and 'below traces' values [#1871]
• Add granular editable configuration options [#1895]
• Expanded traces generated by transforms now have unique colors [#1830]

Fixed

• Fix axis line width, length, and positioning for coupled subplots [#1854]
• Fix alignment of cartesian tick labels [#1854]
• Fix rendering and updates of overlaying axis lines [#1855]
• Fix hover for 2D traces with custom colorbar tickvals [#1891]
• Fix hover and event data for heatmapgl and contourgl traces [#1884]
• Fix event data for pie and sankey traces [#1896]
• Fix drag mode 'pan'in IE and Edge [#1871]
• Fix bar, error bar and box point scaling on scroll zoom [#1897]
• Fix shading issue in surface trace in iOS [#1868]
• Fix lasso and select drag modes for scatterternary traces [#1831]
• Fix cases of intersecting contour lines on log axes [#1856]
• Safer construction of popup click handler [#1888]
• Fix animation of annotations, shapes and images [#1315]
• Fix histogram bin computation when more than 5000 bins are needed [#1887]
• Fix tick label rendering when more than 1000 labels are present [#1898]
• Fix handling of empty transforms item [#1829]

v1.28.3

Fixed

• Fix deselect on double-clicking for gl2d traces [#1811]
• Fix Plotly.purge for gl2d and gl3d subplots
  (bug introduced in 1.28.0, leading to memory leaks) [#1821]
• Fix hover labels for ohlc and candlestick traces
  (bug introduced in 1.28.0) [#1808]
• Fix event data for scattergeo traces [#1819]
• Fix support of HTML entity number in pseudo-html inputs [#1820]

v1.28.2

Fixed

• Fix IE rendering error (node.children doesn't work on SVG nodes in IE) [#1803]