Microsoft has released a preview of its April release on 1^st Feb 2019 that allows us the flexibility to explore the features, adoption of all changes and the user experience updates for Dynamics 365 and the Power Platform which will be enabled by default in April 2019.

Note: Once you enable the April 2019 update, it can’t be turned-off.

How to enable the April 2019 updates:

Step1: Go to Power platform Admin center https://admin.powerplatform.microsoft.com , choose the environment to enable the April 2019 updates.

Step2: On selecting, it will go to environment’s hub, where click on manage.

Step3: Click on Active now, it will take you to confirm screen.

Step4: Enter your environment name and click on continue.

It will take a while to activate the April 2019 update. Once it’s done same will be notified as “April 2019 update is now active” and April 2019 update is On now in update section on the bottom or right hand side.

Hope it helps!

As we know, Unified Client Interface is introduced in Dynamic 365 Customer Engagement, where dynamics folks were busy to look its new features and how Unified Interface distinct from Web Client.

I also did some analysis of comparison between UCI and Web.

Here, Properties are listed below:

S.No.	Field Properties	UCI	Web
1.	Composite Name/Address field	No	Yes*
2.	Turn-off Automatic resolution in field	No	Yes
3.	Disable most recently used items for this field	Yes	No
4.	Available on Phone	Yes	No
5.	Display search box in Lookup dialog	No	Yes
6.	Inline View Search Match highlight	Yes**	No
7.	Lookup View Columns	Yes***	Yes***

Note*: Composite Name Field

Composite Address Field:

Note**: Inline View Search Match highlight

 Note***: UCI shows 2 columns until click on expand arrow where Web client shows 3 columns at its max.

S.No.	Section Properties	UCI	Web Client
1.	Section Columns	Yes	Yes
2.	Field Label Width	No	Yes
3.	Field Label Position	No	Yes*
4.	Field Label Alignment	No	Yes
5.	Available on Phone	Yes	No
6.	Show the label of this section on the form	Yes	Yes

Note*: Field Label Position

S.No.	Sub Grid Properties	UCI	Web Client
1.	Display Search Box	Yes	Yes
2.	Panel Header Color	No	Yes
3.	Show Chart Only	No	Yes
4.	Display Index	Yes	Yes
5.	Automatically Expand to use available space	Yes*	Yes*

Note*: Sub grid get expend till its height then start paging with Index.

S.No.	Tab Properties	UCI	Web Client
1.	Show the label of this tab on the form	No	Yes
2.	Expand this tab by default	No	Yes
3.	Visible by default	Yes	Yes
4.	Tab Layout	Yes	Yes
5.	Tab Column Width	Yes	Yes

Hope it helps!