Holoviews

**May 1, 2019**

This is a minor release with a number of important bug fixes and a
small number of enhancements. Many thanks to our users for reporting
these issues, and special thanks to our internal developers
philippjfr, jlstevens and jonmease and external contributors
including ahuang11 and arabidopsis for their contributions to the
code and the documentation.

Enhancements:

- Add styles argument to draw tool streams to allow cycling colors
and other styling when drawing glyphs
([3612](https://github.com/pyviz/holoviews/pull/3612))
- Add ability to define alpha on (data)shade operation
([3611](https://github.com/pyviz/holoviews/pull/3611))
- Ensure that categorical plots respect Dimension.values order
([3675](https://github.com/pyviz/holoviews/pull/3675))

Compatibility:

- Compatibility with Plotly 3.8
([3644](https://github.com/pyviz/holoviews/pull/3644))

Bug fixes:

- Ensure that bokeh server plot updates have the exclusive Document
lock ([3621](https://github.com/pyviz/holoviews/pull/3621))
- Ensure that Dimensioned streams are inherited on `__mul__`
([3658](https://github.com/pyviz/holoviews/pull/3658))
- Ensure that bokeh hover tooltips are updated when dimensions change
([3609](https://github.com/pyviz/holoviews/pull/3609))
- Fix DynamicMap.event method for empty streams
([3564](https://github.com/pyviz/holoviews/pull/3564))
- Fixed handling of datetimes on Path plots
([3464](https://github.com/pyviz/holoviews/pull/3464),
[3662](https://github.com/pyviz/holoviews/pull/3662))
- Ensure that resampling operations do not cause event loops
([3614](https://github.com/pyviz/holoviews/issues/3614))

Backward compatibility:

- Added color cycles on Violin and BoxWhisker elements due to earlier
regression ([3592](https://github.com/pyviz/holoviews/pull/3592))

**April 10, 2019**

This is a minor release that pins to the newly released Bokeh 1.1 and
adds support for parameter instances as streams:

Enhancements:

- Add support for passing in parameter instances as streams
([3616](https://github.com/pyviz/holoviews/pull/3616))

**April 2, 2019**

This release provides a number of exciting new features as well as a set
of important bug fixes. Many thanks to our users for reporting these
issues, and special thanks to ahuang11, jonmmease, poplarShift,
reckoner, scottclowe and syhooper for their contributions to the code
and the documentation.

Features:

- New plot options for controlling layouts including a responsive mode
as well as improved control over aspect using the newly updated bokeh
layout engine ([3450](https://github.com/pyviz/holoviews/pull/3450),
[3575](https://github.com/pyviz/holoviews/pull/3575))
- Added a succinct and powerful way of creating DynamicMaps from
functions and methods via the new `.apply` method
([3554](https://github.com/pyviz/holoviews/pull/3554),
[3474](https://github.com/pyviz/holoviews/pull/3474))

Enhancements:

- Added a number of new plot options including a clabel param for
colorbars ([3517](https://github.com/pyviz/holoviews/pull/3517)),
exposed Sankey font size
([3535](https://github.com/pyviz/holoviews/pull/3535)) and added a
radius for bokeh nodes
([3556](https://github.com/pyviz/holoviews/pull/3556))
- Switched notebook output to use an HTML mime bundle instead of
separate HTML and JS components
([3574](https://github.com/pyviz/holoviews/pull/3574))
- Improved support for style mapping constant values via
`dim.categorize`
([3578](https://github.com/pyviz/holoviews/pull/3578))

Bug fixes:

- Fixes for colorscales and colorbars
([3572](https://github.com/pyviz/holoviews/pull/3572),
[3590](https://github.com/pyviz/holoviews/pull/3590))
- Other miscellaneous fixes
([3530](https://github.com/pyviz/holoviews/pull/3530),
[3536](https://github.com/pyviz/holoviews/pull/3536),
[3546](https://github.com/pyviz/holoviews/pull/3546),
[3560](https://github.com/pyviz/holoviews/pull/3560),
[3571](https://github.com/pyviz/holoviews/pull/3571),
[3580](https://github.com/pyviz/holoviews/pull/3580),
[3584](https://github.com/pyviz/holoviews/pull/3584),
[3585](https://github.com/pyviz/holoviews/pull/3585),
[3594](https://github.com/pyviz/holoviews/pull/3594))

**February 25, 2019**

This is the last micro-release in the 1.11 series providing a number
of important fixes. Many thanks to our users for reporting these
issues and poplarShift and henriqueribeiro for contributing a number
of crucial fixes.

Bug fixes:

- All unused Options objects are now garbage collected fixing the last
memory leak ([3438](https://github.com/pyviz/holoviews/pull/3438))
- Ensured updating of size on matplotlib charts does not error
([3442](https://github.com/pyviz/holoviews/pull/3442))
- Fix casting of datetimes on dask dataframes
([3460](https://github.com/pyviz/holoviews/pull/3460))
- Ensure that calling redim does not break streams and links
([3478](https://github.com/pyviz/holoviews/pull/3478))
- Ensure that matplotlib polygon plots close the edge path
([3477](https://github.com/pyviz/holoviews/pull/3477))
- Fixed bokeh ArrowPlot error handling colorbars
([3476](https://github.com/pyviz/holoviews/pull/3476))
- Fixed bug in angle conversion on the VectorField if invert_axes
([3488](https://github.com/pyviz/holoviews/pull/3488))
- Ensure that all non-Annotation elements support empty constructors
([3511](https://github.com/pyviz/holoviews/pull/3511))
- Fixed bug handling out-of-bounds errors when using tap events on
datetime axis
([3519](https://github.com/pyviz/holoviews/pull/3519))

Enhancements:

- Apply Labels element offset using a bokeh transform allowing Labels
element to share data with original data
([3445](https://github.com/pyviz/holoviews/pull/3445))
- Allow using datetimes in xlim/ylim/zlim
([3491](https://github.com/pyviz/holoviews/pull/3491))
- Optimized rendering of TriMesh wireframes
([3495](https://github.com/pyviz/holoviews/pull/3495))
- Add support for datetime formatting when hovering on Image/Raster
([3520](https://github.com/pyviz/holoviews/pull/3520))
- Added Tiles element from GeoViews
([3515](https://github.com/pyviz/holoviews/pull/3515))

**January 28, 2019**

This is a minor bug fix release with a number of small but important
bug fixes. Special thanks to darynwhite for his contributions.

Bug fixes:

- Compatibility with pandas 0.24.0 release
([3433](https://github.com/pyviz/holoviews/pull/3433))
- Fixed timestamp selections on streams
([3427](https://github.com/pyviz/holoviews/pull/3427))
- Fixed persisting options during clone on Overlay
([3435](https://github.com/pyviz/holoviews/pull/3435))
- Ensure cftime datetimes are displayed as a slider
([3413](https://github.com/pyviz/holoviews/pull/3413))

Enhancements:

- Allow defining hook on backend load
([3429](https://github.com/pyviz/holoviews/pull/3429))
- Improvements for handling graph attributes in Graph.from_networkx
([3432](https://github.com/pyviz/holoviews/pull/3432))