Tesseract Core v1.11.0 released

Announcements
1

Release v1.11.0

Highlights

Optional lz4 compression for array payloads

Arrays serialized via the json+base64 and json+binref encodings can now be lz4-compressed, reducing payload sizes for large arrays. Compression is opt-in via the new TESSERACT_COMPRESSION config variable (set to lz4, unset by default).

TESSERACT_COMPRESSION only controls how a Tesseract encodes its output — inputs are always decoded correctly whether compressed or not, since each array carries its own compression field. This means you can pipe a compressed output straight into another Tesseract without configuring the receiver.

Since it’s a runtime config var, forward it into the container with -e when using tesseract run:

tesseract run -e TESSERACT_COMPRESSION=lz4 vectoradd apply -f json+binref -o /tmp/out @inputs.json

Two things to note:

  • lz4 is now a runtime dependency of all Tesseract builds.
  • The binref buffer spec is extended from <path>:<offset> to <path>:<offset>:<compressed_size> for compressed arrays. This is backward compatible — uncompressed buffers keep the old two-part format.

Other changes

  • Fixed several tesseract_requirements.txt / conda requirement-handling bugs: ../ relative paths, local packages with extras (./mypackage[extra]), and pip: ./mypackage under the conda provider now work as intended (#644).
  • Fixed random port binding collisions that could cause intermittent tesseract serve failures; FastAPI now always serves on port 8000 inside containers unless --network host is used (#649).
  • New pipeline guide and documentation for tesseract run test (#642), a learned-closure demo and Tesseract-Torch docs (#626), and an Enzyme integration demo with accompanying blog post (#542).
  • CLI reference docs are now rendered with sphinxcontrib-typer instead of sphinx-click (#634).

What’s Changed

Features

  • Add optional lz4 compression support for arrays passed via base64 or binref encoding (#579)

Bug Fixes

  • Squash all requirement handling bugs (#644)
  • Random port binding collisions (#649)

Documentation

  • Replace sphinx-click with sphinxcontrib-typer (#634)
  • Add learned closure demo, add T-torch to landing page + docs (#626)
  • Add enzyme integration demo + blog post (#542)
  • Add pipeline guide and document tesseract run test (#642)

Full diff: Comparing v1.10.0...v1.11.0 · pasteurlabs/tesseract-core · GitHub