# Undocumented 5.7.1 changes

**URL:** <https://devforum.zoom.us/t/undocumented-5-7-1-changes/55788>\
**Category:** Meeting SDK\
**Created:** [August 14, 2021, 3:46am UTC](https://devforum.zoom.us/t/undocumented-5-7-1-changes/55788 "2021-08-14T03:46:09Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![jeremy.provost](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jeremy.provost/32/12182_2.png) [@jeremy.provost](https://devforum.zoom.us/u/jeremy.provost)\
**Post date:** [August 14, 2021, 3:46am UTC](https://devforum.zoom.us/t/undocumented-5-7-1-changes/55788/1 "2021-08-14T03:46:09Z")

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**Description**  
In case this is helpful for anyone else, there are changes to the latest SDK that do not appear in the changelog. I’ve found two so far.

MobileRTCAuthDelegate  
Used to have a delegate method named onMobileRTCLoginReturn. (This part is marked as removed in the release notes)  
Now has a delegate method named onMobileRTCLoginResult.

MobileRTCChatGroup  
Used to have an enum value named MobileRTCChatGroup\_SilentModeUsers.  
Now has an enum value named MobileRTCChatGroup\_WaitingRoomUsers.

This is in addition to an apparent change to custom meeting UI where that no longer works at all. See here: [Custom UI no longer available - #2 by IDevDev](https://devforum.zoom.us/t/custom-ui-no-longer-available/55787/2)

Would love to know if you find any other undocumented changes.

**Which Mobile Meeting SDK version?**  
iOS SDK 5.7.1

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**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\
**Post date:** [August 17, 2021, 7:59pm UTC](https://devforum.zoom.us/t/undocumented-5-7-1-changes/55788/2 "2021-08-17T19:59:13Z")

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Hey @jeremy.provost,

Thanks for using the dev forum!

I agree, undocumented changes are not acceptable. We are looking into the custom UI issue now, will provide updates as we have them.

Stay tuned.

Thanks!  
Michael

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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:** [September 17, 2021, 5:59am UTC](https://devforum.zoom.us/t/undocumented-5-7-1-changes/55788/3 "2021-09-17T05:59:56Z")

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