  docs.
🆙 Improved the machinery behind st.file_uploader, so it's much more
  performant now! Also increased the default upload limit to 200MB
  (configurable via server.max_upload_size).
🔒 The server.address config option now binds the server to that address
  for added security.
📄 Even more details added to error messages for @st.cache for easier
  debugging.
Version 0.56.0
Release date: February 15, 2020
Highlights:
📄 Improved error messages for st.cache. The errors now also point to the new
  caching docs we just released. Read more
  here!
Breaking changes:
🐍 As announced last month,
  Streamlit no longer supports Python 2. To use Streamlit you'll need
  Python 3.5 or above.
Version 0.55.0
Release date: February 4, 2020
Highlights:
📺 Ability to record screencasts directly from Streamlit! This allows
