# Clarification on Changelog

**URL:** <https://devforum.zoom.us/t/clarification-on-changelog/52650>\
**Category:** Web\
**Created:** [June 17, 2021, 12:55pm UTC](https://devforum.zoom.us/t/clarification-on-changelog/52650 "2021-06-17T12:55:23Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![ephraimwwt](https://avatars.discourse-cdn.com/v4/letter/e/779978/32.png) [@ephraimwwt](https://devforum.zoom.us/u/ephraimwwt)\
**Post date:** [June 17, 2021, 12:55pm UTC](https://devforum.zoom.us/t/clarification-on-changelog/52650/1 "2021-06-17T12:55:23Z")

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In your changelog you mention a few new features for 1.1.0.

`Local audio and video track APIs to preview audio/video before joining a session`  
and  
`APIs for controlling and managing Web Video SDK sessions`

I am not noticing any extra methods or return types or anything that would expose these new API’s. Could you clarify where we could find this new functionality? Thanks.

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**Author:** ![vic.yang](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/vic.yang/32/24656_2.png) [@vic.yang](https://devforum.zoom.us/u/vic.yang)\
**Post date:** [June 18, 2021, 1:53am UTC](https://devforum.zoom.us/t/clarification-on-changelog/52650/2 "2021-06-18T01:53:44Z")

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Hey @ephraimwwt

Thanks for your feedback.

1. To use local audio and video track :

```auto
import ZoomVideo from '@zoom/videosdk';
const testCamera = async () => {
  const devices = await ZoomVideo.getDevices();
  const videoDevices = devices.filter(function (device) {
    return device.kind === "videoinput";
  });
  const selectedCameraId = videoDevices[0].deviceId;
  const localVideoTrack = ZoomVideo.createLocalVideoTrack(selectedCameraId);
  await localVideoTrack.start(VideoElement);
  // stop render local video
  await localVideoTrack.stop();
}

```

We will improve the documentation soon.

1. We added an addition parameter to `leave` method to control whether end the session. [https://marketplace.zoom.us/docs/sdk/video/web/essential/create-join-session](https://marketplace.zoom.us/docs/sdk/video/web/essential/create-join-session)

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<div class="post-metadata">

**Author:** ![ephraimwwt](https://avatars.discourse-cdn.com/v4/letter/e/779978/32.png) [@ephraimwwt](https://devforum.zoom.us/u/ephraimwwt)\
**Post date:** [June 18, 2021, 2:33pm UTC](https://devforum.zoom.us/t/clarification-on-changelog/52650/3 "2021-06-18T14:33:25Z")

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Perfect, thank you Vic!

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**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\
**Post date:** [June 21, 2021, 6:40pm UTC](https://devforum.zoom.us/t/clarification-on-changelog/52650/4 "2021-06-21T18:40:38Z")

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Thanks @vic.yang !

Let us know if you have any other questions @ephraimwwt ! 🙂

-Tommy

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**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\
**Post date:** [July 22, 2021, 4:41am UTC](https://devforum.zoom.us/t/clarification-on-changelog/52650/5 "2021-07-22T04:41:27Z")

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