Holoviews

**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))

**January 17, 2019**

This is a minor bug fix release with a number of important bug fixes,
enhancements and updates to the documentation. Special thanks to
ahuang11, garibarba and Safrone for their contributions.

Bug fixes:

- Fixed bug plotting adjoined histograms in matplotlib
([3377](https://github.com/pyviz/holoviews/pull/3377))
- Fixed bug updating bokeh RGB alpha value
([3371](https://github.com/pyviz/holoviews/pull/3371))
- Handled issue when colorbar limits were equal in bokeh
([3382](https://github.com/pyviz/holoviews/pull/3382))
- Fixed bugs plotting empty Violin and BoxWhisker elements
([3397](https://github.com/pyviz/holoviews/pull/3397),
[3405](https://github.com/pyviz/holoviews/pull/3405))
- Fixed handling of characters that have no uppercase on Layout and
Overlay objects
(([3403](https://github.com/pyviz/holoviews/pull/3403))
- Fixed bug updating Polygon plots in bokeh
([3409](https://github.com/pyviz/holoviews/pull/3409))

Enhancements:

- Provide control over gridlines ticker and mirrored axis ticker by
default ([3398](https://github.com/pyviz/holoviews/pull/3377))
- Enabled colorbars on CompositePlot classes such as Graphs, Chords
etc. ([3397](https://github.com/pyviz/holoviews/pull/3396))
- Ensure that xarray backend retains dimension metadata when casting
element ([3401](https://github.com/pyviz/holoviews/pull/3401))
- Consistently support clim options
([3382](https://github.com/pyviz/holoviews/pull/3382))

Documentation:

- Completed updates from .options to .opts API in the documentation
([3364]((https://github.com/pyviz/holoviews/pull/3364),
[3367](<(https://github.com/pyviz/holoviews/pull/3367)>)