> ## Documentation Index
> Fetch the complete documentation index at: https://docs.learningcommons.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Release notes

<Update label="May 7, 2026" tags={["Purpose", "SDK"]}>
  ## Purpose Evaluator

  Released the Purpose Evaluator, which analyzes how clearly a text communicates its central purpose.

  ## TypeScript SDK

  Added Purpose evaluator support.
</Update>

<Update label="March 20, 2026" tags={["Conventionality", "SDK"]}>
  ## Conventionality Evaluator

  Released the Conventionality Evaluator, which analyzes whether language is literal and explicit or relies on figurative, abstract, or implied meaning that requires interpretation.

  ## TypeScript SDK

  Added Subject Matter Knowledge and Conventionality evaluator support.
</Update>

<Update label="March 13, 2026" tags={["SDK", "Subject Matter Knowledge", "Playground"]}>
  ## TypeScript SDK

  Released a TypeScript SDK for Grade Level Appropriateness, Vocabulary, and Sentence Structure evaluators.

  ## Subject Matter Knowledge Evaluator

  Released the Subject Matter Knowledge qualitative text complexity evaluator, which identifies key concepts in a text and evaluates background knowledge demands by grade level.

  ## Playground

  Introduced the Playground, an interactive environment for testing evaluators without setup or integration. Paste text, select a grade, and view results.
</Update>

<Update label="Feb 19, 2026" tags={["Vocabulary"]}>
  ## Vocabulary Evaluator

  Expanded grade support to include grades 5–12.
</Update>

<Update label="Feb 18, 2026" tags={["Sentence Structure"]}>
  ## Sentence Structure Evaluator

  Expanded grade support to include grades 5–12.
</Update>

<Update label="Sept 23, 2025" tags={["Grade Level Appropriateness", "Vocabulary", "Sentence Structure"]}>
  ## Grade Level Appropriateness Evaluator

  Released the Grade Level Appropriateness Evaluator.

  ## Vocabulary Evaluator

  Released the Vocabulary Evaluator with support for grades 3–4.

  ## Sentence Structure Evaluator

  Released the Sentence Structure Evaluator with support for grades 3–4.
</Update>