> ## 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

> Release notes for Student-Facing Text, Feedback, Academic Standards, and Durable Skills evaluators, plus TypeScript and Python SDK version updates.

<Update label="September 3, 2026" tags={["Durable Skills evaluators"]}>
  ## Introducing Durable Skills evaluators

  Released [Durable Skills evaluators](/evaluators/durable-skills-evaluators/introduction) to rate student work against a construct's indicators, with evidence and reasoning for every judgment:

  |                                                                              |                                                                                                     |
  | :--------------------------------------------------------------------------- | :-------------------------------------------------------------------------------------------------- |
  | [Critical Thinking](/evaluators/durable-skills-evaluators/critical-thinking) | Rates a student's source-based argumentative essay for critical thinking across 5 rubric indicators |
</Update>

<Update label="July 29, 2026" tags={["Student-Facing Text evaluators", "Feedback evaluators"]}>
  ## Added Student-Facing Text evaluator

  |                                                                                                 |                                                                                                 |
  | :---------------------------------------------------------------------------------------------- | :---------------------------------------------------------------------------------------------- |
  | [Organizational Structure](/evaluators/student-facing-text-evaluators/organizational-structure) | Assesses how demanding a text's organizational structure is for students at a given grade level |

  ## Added Feedback evaluators

  |                                                                              |                                                                                                                  |
  | :--------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------- |
  | [Tone Appropriateness](/evaluators/feedback-evaluators/tone-appropriateness) | Assesses whether teacher feedback strikes a tone that is appropriate and constructive for the student            |
  | [Withholding Answers](/evaluators/feedback-evaluators/withholding-answers)   | Assesses whether teacher feedback guides the student toward a revision without doing the cognitive work for them |
</Update>

<Update label="June 30, 2026" tags={["Academic Standards evaluators"]}>
  ## Introducing Academic Standards evaluators

  Released [Academic Standards evaluators](/evaluators/academic-standards-evaluators/introduction) to measure how aligned educational content is to [U.S. academic standards](/knowledge-graph/datasets/standards/us-academic-standards):

  |                                                                                                |                                                                                                                                                                   |
  | :--------------------------------------------------------------------------------------------- | :---------------------------------------------------------------------------------------------------------------------------------------------------------------- |
  | [Math Standards Alignment](/evaluators/academic-standards-evaluators/math-standards-alignment) | Checks a math question against an academic standard’s corresponding [learning components](/knowledge-graph/datasets/learning-components/math-learning-components) |
</Update>

<Update label="June 24, 2026" tags={["Feedback evaluators", "Student-Facing Text evaluators"]}>
  ## Introducing Feedback evaluators

  Released [Feedback evaluators](/evaluators/feedback-evaluators/introduction) to assess the quality of AI-generated or teacher feedback:

  |                                                                                              |                                                                                                                                   |
  | :------------------------------------------------------------------------------------------- | :-------------------------------------------------------------------------------------------------------------------------------- |
  | [Strength Acknowledgement](/evaluators/feedback-evaluators/strength-acknowledgement)         | Assesses whether feedback names something specific and authentic the student did well, distinct from generic or unanchored praise |
  | [Revision Actionability](/evaluators/feedback-evaluators/revision-actionability)             | Assesses whether feedback gives a clear, usable next step the student can act on without additional clarification                 |
  | [Student Response Specificity](/evaluators/feedback-evaluators/student-response-specificity) | Assesses whether feedback is clearly based on the student's specific response                                                     |
  | [Revision Accuracy](/evaluators/feedback-evaluators/revision-accuracy)                       | Assesses whether feedback correctly identifies whether the student needed to revise                                               |
  | [Revision Manageability](/evaluators/feedback-evaluators/revision-manageability)             | Assesses whether the amount of feedback is manageable for the student                                                             |

  ## Added Student-Facing Text evaluator

  |                                                                                                       |                                                                                              |
  | :---------------------------------------------------------------------------------------------------- | :------------------------------------------------------------------------------------------- |
  | [Reference Knowledge Demands](/evaluators/student-facing-text-evaluators/reference-knowledge-demands) | Assesses what a text assumes you've already encountered and then builds on to create meaning |
</Update>

<Update label="May 22, 2026" tags={["SDK", "Python", "TypeScript"]}>
  ## Introducing the Python SDK

  Released a [Python SDK](https://github.com/learning-commons-org/evaluators/tree/main/sdks/python) ↗ with support for the following [Student-Facing Text evaluators](/evaluators/student-facing-text-evaluators/introduction):

  * [Vocabulary Complexity](/evaluators/student-facing-text-evaluators/vocabulary-complexity)
  * [Meaning Directness](/evaluators/student-facing-text-evaluators/meaning-directness)

  ## Expanded TypeScript SDK support

  Added [`--bypass-row-limit`](/evaluators/sdk-api-reference/typescript/batch-evaluator#options) option for the [batch evaluator](/evaluators/sdk-api-reference/typescript/batch-evaluator).
</Update>

<Update label="May 7, 2026" tags={["Student-Facing Text evaluators", "SDK", "TypeScript"]}>
  ## Added Student-Facing Text evaluator

  |                                                                               |                                                              |
  | :---------------------------------------------------------------------------- | :----------------------------------------------------------- |
  | [Purpose Clarity](/evaluators/student-facing-text-evaluators/purpose-clarity) | Analyzes how clearly a text communicates its central purpose |

  ## Expanded TypeScript SDK support

  * [Purpose Clarity](/evaluators/student-facing-text-evaluators/purpose-clarity)
</Update>

<Update label="March 20, 2026" tags={["Student-Facing Text evaluators", "SDK", "TypeScript"]}>
  ## Added Student-Facing Text evaluator

  |                                                                                     |                                                                                                                                      |
  | :---------------------------------------------------------------------------------- | :----------------------------------------------------------------------------------------------------------------------------------- |
  | [Meaning Directness](/evaluators/student-facing-text-evaluators/meaning-directness) | Analyzes whether language is literal and explicit or relies on figurative, abstract, or implied meaning that requires interpretation |

  ## Expanded TypeScript SDK support

  * [Background Knowledge Demands](/evaluators/student-facing-text-evaluators/background-knowledge-demands)
  * [Meaning Directness](/evaluators/student-facing-text-evaluators/meaning-directness)
</Update>

<Update label="March 13, 2026" tags={["SDK", "TypeScript", "Learning Commons Platform", "Student-Facing Text evaluators"]}>
  ## Introducing the TypeScript SDK

  Released a [TypeScript SDK](https://github.com/learning-commons-org/evaluators/tree/main/sdks/typescript) ↗ with support for the following [Student-Facing Text evaluators](/evaluators/student-facing-text-evaluators/introduction):

  * [Grade Level Appropriateness](/evaluators/student-facing-text-evaluators/grade-level-appropriateness)
  * [Vocabulary Complexity](/evaluators/student-facing-text-evaluators/vocabulary-complexity)
  * [Sentence Structure](/evaluators/student-facing-text-evaluators/sentence-structure)

  ## Introducing the Evaluators playground

  Released the [Evaluators playground](https://platform.learningcommons.org/apps/evaluators/playground) ↗, an interactive environment for testing evaluators without setup or integration

  ## Added Student-Facing Text evaluator

  |                                                                                                         |                                                                                             |
  | :------------------------------------------------------------------------------------------------------ | :------------------------------------------------------------------------------------------ |
  | [Background Knowledge Demands](/evaluators/student-facing-text-evaluators/background-knowledge-demands) | Identifies key concepts in a text and evaluates background knowledge demands by grade level |
</Update>

<Update label="Feb 19, 2026" tags={["Literacy evaluators"]}>
  ## Expanded Vocabulary Complexity support

  Expanded support for [Vocabulary Complexity](/evaluators/student-facing-text-evaluators/vocabulary-complexity) to include grades 5–12
</Update>

<Update label="Feb 18, 2026" tags={["Student-Facing Text evaluators"]}>
  ## Expanded Sentence Structure support

  Expanded support for [Sentence Structure](/evaluators/student-facing-text-evaluators/sentence-structure) to include grades 5–12
</Update>

<Update label="Sept 23, 2025" tags={["Student-Facing Text evaluators"]}>
  ## Introducing Student-Facing Text evaluators

  Released [Student-Facing Text evaluators](/evaluators/student-facing-text-evaluators/introduction):

  |                                                                                                       |                                                                                                                                     |
  | :---------------------------------------------------------------------------------------------------- | :---------------------------------------------------------------------------------------------------------------------------------- |
  | [Grade Level Appropriateness](/evaluators/student-facing-text-evaluators/grade-level-appropriateness) | Determines whether AI-generated text is suitable for a grade band and suggests scaffolding that can support instruction of the text |
  | [Vocabulary Complexity](/evaluators/student-facing-text-evaluators/vocabulary-complexity)             | Measures how challenging vocabulary in informational texts may be for students in grades 3–4                                        |
  | [Sentence Structure](/evaluators/student-facing-text-evaluators/sentence-structure)                   | Assesses the complexity of sentence structure in informational texts for grades 3–4                                                 |
</Update>

## Related topics

<CardGroup cols={2}>
  <Card title="Support" icon="envelope" href="/evaluators/resources/support">
    Report issues or ask questions about a recent release.
  </Card>
</CardGroup>
