v2.9.0

What's new

Added 🎉

• Added Python 3.9 to the testing matrix

Changed ⚠️

• Following a breaking change in the NLTK API, we now depend on the most recent version only.
• Added Tensorboard callbacks to the RC models

Removed 👋

• Removed the dependency on the overrides package
• Removed Tango components, since they now live at https://github.com/allenai/tango

Commits

8c5f4d0 Gives more accurate LERC instructions. (#320)
9fb6c09 Bump mypy from 0.930 to 0.931 (#319)
a36aed5 Removes stuff that now lives in the tango repo (#313)
eb3994e Bump mypy from 0.910 to 0.930 (#318)
9f32599 Update mkdocs-material requirement from <8.1.0,>=5.5.0 to >=5.5.0,<8.2.0 (#314)
b6923c3 Model updates (#315)
4866862 Add option to use scheduled sampling in CopyNet (#309)
8644437 Update mkdocs-material requirement from <7.4.0,>=5.5.0 to >=5.5.0,<8.1.0 (#310)
1aff4cc Python 3.9 (#312)
1591777 Remove dependency on the overrides package (#311)
05dd4e6 Update nltk requirement from <3.6.5 to <3.6.6 (#307)
6c4daca Update mkdocs-material requirement from <7.3.0,>=5.5.0 to >=5.5.0,<7.4.0 (#303)