Tensorboard

before doing `pip install tensorboard`. See "Known Issues" below if you run into
problems using TensorBoard after upgrading.

The 1.6 minor series tracks TensorFlow 1.6.

Highlights

- (Beta) New Profile dashboard, which provides a suite of tools for inspecting
TPU performance. See for details:
https://github.com/tensorflow/tensorboard/tree/1.6/tensorboard/plugins/profile
- (Alpha) New Debugger dashboard, which provides a visual interface to `tfdbg`,
the TensorFlow debugger. See for details:
https://github.com/tensorflow/tensorboard/tree/1.6/tensorboard/plugins/debugger

Known issues

- Package `tensorboard` is installed but command and/or module are missing or
have the wrong version - this may be due to conflicts with other packages that
provide `tensorboard` scripts or modules. Please uninstall *all* such packages
including `tensorboard`, `tensorflow-tensorboard` and `tb-nightly` and then
reinstall `tensorboard`.
- Bazel 0.9.0+ required to build from source - this change was necessary in order
to add support for building at Bazel 0.10.0 and above. Please update Bazel.

NOTICE: TensorBoard 1.6.0+ will move to the `tensorboard` package name on PyPI,
instead of using `tensorflow-tensorboard`. Only bugfix updates on 1.5.x will be
applied to the old package name. To upgrade to TensorBoard 1.6.0+ please *first*
`pip uninstall tensorflow-tensorboard` before doing `pip install tensorboard`.

The 1.5 minor series tracks TensorFlow 1.5.

Bug fixes

- 554 - line charts no longer "shrink" after run changes on other tabs
- 889 - fixed xComponentsCreationMethod default in vz-line-chart
- 898 - fixed offset of checkbox label in projector dashboard - thanks marcj
- 903 - disabled margin plot smoothing to avoid line going out of bounds
- 916 - made `futures` dependency py2-only to avoid install failures
- 924 - fixed graph dashboard bug causing blank PNG download and minimap
- 926 - made projector plugin API available in pip package

Documentation updates

- Custom scalars documentation now documents margin plots feature (878)
- FAQ updated to describe custom scalars plugin use cases

The 1.5 minor series tracks TensorFlow 1.5.

Highlights

- New Custom Scalars dashboard, which can display configurable custom line and
margin charts based on the same data as the regular Scalars dashboard. See
for details: https://github.com/tensorflow/tensorboard/tree/1.5/tensorboard/plugins/custom_scalar
- Many projector plugin enhancements thanks to francoisluus, which enable
cognitive-assisted labeling via semi-supervised t-SNE
- t-SNE specific features: semi-supervision (811) plus perturb (705) and
pause/resume (691) buttons
- general features: metadata editor (753), selection edit mode (697), edit
box for neighbors slider (733), 2D sprite element zooming (696)

Features

- Image dashboard brightness and constrast sliders (771) - thanks edmundtong
- Top-level dashboard tabs now scroll when there are too many to fit (730)
- Settable browser window title with --window_title flag (804) - thanks tkunic
- Tag filters are now reflected in the URL, making them saveable (787)
- Pane-based dashboards now only load charts from first two panes by default,
which should improve responsiveness (643 defaults tag filter search string
to empty, and 871 makes first two panes open by default)
- Lower latency to serve TensorBoard HTML thanks to preloading in memory (708)
- Lazy imports ("import tensorboard as tb") now work for summary APIs (778)
- PR curve summaries now have pb (633) and raw_data_pb (646) versions

Bug fixes

- 265 - fixed `--logdir` to handle Windows drive letters - thanks shakedel
- 784 - fixed bug in find similar subgraph algo - thanks trisolaran
- Graph plugin fixed to
- correctly render function nodes (817)
- pan to nodes more reliably (824, 837)
- rebuild hierarchy if callbacks change to avoid race in rendering (879)

The 0.4 minor series tracks TensorFlow 1.4.

Features

- PR Curve plugin has a full-featured new dashboard (387, 426, many others)
- PR Curve plugin has new streaming and raw summary-writing ops (520, 587)
- Graph plugin has a new "Functions" scene group to show function libraries and
links to function calls (394, 395, 497, 551, others)
- Graph plugin metanodes are now colored more helpfully (467)
- Graph plugin selected run is now persisted to URL (505)
- Standard dashboard card header UI is more compact and readable (430)
- Pagination limit can now be configured in settings (535)
- Text plugin now has op and pb summary writing methods (510)
- Reduced boilerplate and cleaner API hooks for custom plugins (611, 620)
- Faster initial loads due to improved active plugin detection (621, 663)
- Reuse of TCP connections with switch to using HTTP/1.1 (617)

Bug fixes

- 477 - fixed URLs to properly URI-encode run and tag names
- 610 - fixed smoothing algorithm initial value bias - thanks alexirpan
- 647 - fixed text plugin decoding error that led to bad markdown processing