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

# 30 September 2025

> Precise timeline rendering, editable subtitles, strengthened metadata permissions, and stability improvements.

## Overview

This release improves **precision editing**, **subtitle workflows**, and **permission controls**. It also delivers smoother rendering and more consistent playback across devices.

***

## What's new

### Selective timeline rendering on the editor

Export only what is needed—avoid rendering the entire video. This lets you export multiple outputs from the same timeline.

<Steps>
  <Step title="Create a draft or open an existing one">
    Start a new **Draft** from the **Library** and add your video to the
    timeline, or open an existing one.
  </Step>

  <Step title="Mark In/Out points">
    Use <kbd>I</kbd> and <kbd>O</kbd> to set start and end for the segment you
    want to export.

    <Frame caption="Segment marked in the timeline">
      <img
        src="https://mintcdn.com/tessact/auD1eHP7LfQNMHiZ/images/changelog/2025-09-30/selective-timeline-rendering.jpg?fit=max&auto=format&n=auD1eHP7LfQNMHiZ&q=85&s=4c8ca915ab06b87daa347854661713b9"
        alt="Selective rendering in
editor"
        width="2070"
        height="974"
        data-path="images/changelog/2025-09-30/selective-timeline-rendering.jpg"
      />
    </Frame>

    <Info>
      You can clear your selection anytime by pressing <kbd>Esc</kbd>.
    </Info>
  </Step>

  <Step title="Render the selection">
    Click **Render** button on the action bar to export only the marked segment.

    <Frame caption="Render button on the action bar with the selected time">
      <img
        src="https://mintcdn.com/tessact/auD1eHP7LfQNMHiZ/images/changelog/2025-09-30/render-button.jpg?fit=max&auto=format&n=auD1eHP7LfQNMHiZ&q=85&s=1c7b2f57350f59ffa509c0b336deece0"
        alt="Render button on the action
bar"
        width="1202"
        height="632"
        data-path="images/changelog/2025-09-30/render-button.jpg"
      />
    </Frame>
  </Step>
</Steps>

***

### Editable subtitles

Subtitles are now **fully editable in the editor**—no external tools or re‑uploads. Fix transcription errors, refine phrasing, or localise content directly. Updates save instantly and are embedded on render.

<Steps>
  <Step title="Select a clip on the timeline">
    Select a clip on the timeline and open the **Properties** panel, go to the
    **Subtitles** tab. Generate auto-subtitles if not already enabled.

    <Frame caption="Subtitles tab in the Properties panel">
      <img
        src="https://mintcdn.com/tessact/auD1eHP7LfQNMHiZ/images/changelog/2025-09-30/subtitle-panel.jpg?fit=max&auto=format&n=auD1eHP7LfQNMHiZ&q=85&s=5b075d080e2713e68bd389b69480e402"
        alt="Subtitles tab in the Properties
panel"
        width="1132"
        height="806"
        data-path="images/changelog/2025-09-30/subtitle-panel.jpg"
      />
    </Frame>
  </Step>

  <Step title="Scroll down to edit captions">
    Scroll down to see time-stamped captions that you can click on to edit.

    <Frame caption="Time-stamped captions in the Properties panel">
      <img
        src="https://mintcdn.com/tessact/auD1eHP7LfQNMHiZ/images/changelog/2025-09-30/subtitle-edit.jpg?fit=max&auto=format&n=auD1eHP7LfQNMHiZ&q=85&s=a4fb62f1a0f9f160da30d542675c99ef"
        alt="Time-stamped captions in the Properties
panel"
        width="1106"
        height="582"
        data-path="images/changelog/2025-09-30/subtitle-edit.jpg"
      />
    </Frame>
  </Step>

  <Step title="Render with updates">
    Save your changes to apply updated subtitles to your draft. This will
    reflect in any renders as well.
  </Step>
</Steps>

***

## Enhancements

* Read‑only metadata permissions — Metadata fields now respect **user‑level permissions**, making selected fields visible but uneditable for restricted users.
* Numeric font‑size tooltips — Subtitle font sizes now display **numeric values** for precise adjustment.
* Metadata export improvements — Template exports now include **prompt columns** in CSV files for clearer downstream data entry and automation.

***

## Fixes & Stability

* Login redirects — Fixed an issue where logging out and then logging back in sometimes redirected to old URLs, causing access‑denied errors.
* Tree node messaging — Clearer messaging when **rename** or **cut** actions are disabled on Connected Folders.
* Subtitles in editor — Corrected bottom offset alignment; fixed overlaps when trimming from the start; resolved colour‑picker inconsistencies.
* Face‑tracked video rendering — Fixed rendering glitches for face‑tracked content in the editor.
* Mobile video playback — Vertical videos now maintain correct proportions after HLS transcoding.

***