Recognize the If-None-Match HTTP header in download.aspx

Modern lists/libraries have controls to render all fields in a modern view - specifically the hard ones like people picker and taxonomy picker.

Exposing these as re-usable modules in a SPFx web part via for example react would be very useful. I'd be happy just having the field renderer, and I can deal with labels etc myself.

Allow REST clients to retrieve all list item versions with all available metadata for each version. This idea is the same as recently implemented for CSOM:
https://sharepoint.uservoice.com/forums/329220-sharepoint-dev-platform/suggestions/15147150-provide-items-version-history-with-csom

I'd like to have the option for an admin to 1) load upp the script and other resources in a customer owned or managed CDN location and 2) allow the admin to specify that location when adding the .sppkg file into the app catalog.
This would allow for more flexible usage of SPFx applications and also allow enterprises to have better governance of the script resources - which would increase the adoption of SPFx and also allow ISV's to create more solutions.

Web description and user id are both strangely missing from the page context. It would be great of they were available.

You can already localize using SetValueForUICulture() for TitleResource or NameResource and DescriptionResource properties of Web, List, ContentType, and Field. What is missing is the ability to do this for NavigationNode and maybe CommandUIExtension to make localization complete.

The SharePoint "fine grain permissions" best practices document recommends using this method as a way to help prevent performance penalties when unique permissions are applied. However, we need this capability in JSOM and CSOM since AddToCurrentScopeOnly is currently only available for use on-premises using the server-side object model.

When updating an item using REST API it is currently supported to update a managed metadata column if we'd like to add only one term.
It would be very useful if we could update a managed metadata column to add several terms when updating an item using REST API

Enable Graph endpoints for external users (Microsoft accounts). More info here on the restriction-
https://developer.microsoft.com/en-us/graph/docs/concepts/permissions_reference

This may require some more security controls for the admins as well.

A useful feature would be to change the SharePoint collection home page to a subsite. There is the option to Make Homepage for the site under the Page tab however this doesn't work.

Hello,

How to make the Command Set extension to work for all types of Lists? What value need to be given for RegistrationType in elements.xml? We don't want the entries to be added for each and every listtype. Just RegistrationType=List should be sufficient for all list types. Please suggest.
Thanks!

Please update the documentation from "Use the createSPList verb to create a new SharePoint list."
to something like
"Use the createSPList verb to create a new SharePoint list or update an existing list"

as it is not clear from the documentation at the minute..

We need the ability to modify application principals via an API so we can give Workflow a greater scope than just a web in an automated fashion. This could be used for fixing broken permissions too.

All of the scaffolding solutions you have tutorials for require the ability to package and deploy using SharePoint Apps uploader & deployer. That step is by definition not client-side because SharePoint administrators must upload it to their App system which resides on the server-side.

What if I need to scaffold solutions locally then move them into an on-premises SharePoint 2013 site that does not permit Apps? Am I just going to have to undo all the work you have done by recodingit into the older fashion deployment for the script editor?

/api/web/tenantappcatalog/add endpoints returns SP.File object, but it shoud be return Microsoft.SharePoint.Marketplace.CorporateCuratedGallery.CorporateCatalogAppMetadata (same as /api/web/tenantappcatalog/availableapps/getbyid).\
After I added a solution package, I can't deploy it because App ID is unknown. Certainly,I can get App ID by ListItemAllFIelds.UniqueId but I think it is very confusing.

OfficeJs Addin Forward current message: Header and Body as an attachment.

Can you please create an API endpoint that will allow a developer to forward the current message Header and Body as an attachment to an address. At the current Moment I believe when we try to forward a message as an attachment we have a message body with no header.

Please give us the option to hide webparts on a site level from the webpart toolbox. E.g. if I don't want my users to use the twitter webpart or any other custom or OOTB webparts. Currently there is no way to control what webpart is visibile on what sites. We could do this in classic by adding/removing webparts from the webpart gallery. Some webparts just don't make sense on certain sites. Some webparts don't work on certain sites. There are so many reasons, this is just a must-have!

A ph app installed with reasonable permissions can t access people managerm.
We need a csom command to get current user timezone to get bias and daylight values.

When review the version history in a list it good be nice to have the possibility to filter by column name. It would be like a kind of track changes by column.