Major Features and Improvements
* Introduced `tft.experimental.approximate_vocabulary` analyzer that is an
approximate version of `tft.vocabulary` which is more efficient with smaller
number of unique elements or `top_k` threshold.
Bug Fixes and Other Changes
* Raise a RuntimeError if order of analyzers in traced Tensorflow Graph is
non-deterministic in TF2.
* Fix issue where a `tft.experimental.ptransform_analyzer`'s output dtype
could be propagated incorrectly if it was a primitive as opposed to
`np.ndarray`.
* Depends on `apache-beam[gcp]>=2.34,<3`.
* Depends on
`tensorflow>=1.15.2,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,<2.8`.
* Depends on `tensorflow-metadata>=1.5.0,<1.6.0`.
* Depends on `tfx-bsl>=1.5.0,<1.6.0`.
Breaking Changes
* N/A
Deprecations
* N/A