A good thing my iPad stopped upgrading at 9.3.5. John M.
On Mon, Sep 18, 2017 at 3:48 PM, Michael B. Smith <[email protected]> wrote: > Yes, it’ll jack up wherever the external connection is. Since 2016 proxies > to 2010 in your case, the 2016’s are acting as CAS frontends and will cause > the problem. > > > > *From:* [email protected] [mailto:listsadmin@lists. > myitforum.com] *On Behalf Of *Senter, John > *Sent:* Monday, September 18, 2017 3:39 PM > *To:* [email protected] > *Subject:* [Exchange] RE: iOS 11 is scheduled for release tomorrow... > > > > Will this only affect mailboxes on Exch 2016 or will it also affect users > that are on Exch 2010 with 2016 in front? We are about to place 2016 in > front of 2010 to start the migration process and need to know if that is > going to jack up the users still on Exch 2010. > > > > > > *From:* [email protected] [mailto:listsadmin@lists. > myitforum.com <[email protected]>] *On Behalf Of *Michael B. > Smith > *Sent:* Monday, September 18, 2017 3:07 PM > *Subject:* [Exchange] RE: iOS 11 is scheduled for release tomorrow... > > > > Further information on [1], as Microsoft and Apple release additional > details. > > > > [1] *This only occurs when Exchange Server 2016 is installed on Windows > Server 2016*. It actually will impact any web app on Windows Server 2016 > to which an iOS 11 device attempts to connect. The issue occurs because iOS > 11 improperly negotiates a HTTP/2 TLS connection, and HTTP/2 is the default > on Windows Server 2016 and iOS 11. > > > > While this is not an Exchange issue per se, Exchange is the application > most likely to be affected. Microsoft offers a workaround, described in > this article, by disabling HTTP/2 thus forcing a fallback to HTTP/1.1: > > > > https://support.microsoft.com/en-us/help/4032720/how-to- > deploy-custom-cipher-suite-ordering-in-windows-server-2016 > > > > (If you find the article title to be irrelevant – well, so do I.) > > > > And a new item: > > > > [3] Yammer and Dynamics CRM apps have not yet been updated for iOS 11. > There are a wide variety of Intune changes/impacts with iOS 11: > > > > https://blogs.technet.microsoft.com/intunesupport/ > 2017/09/12/support-tip-intune-support-for-ios-11/ > > > > Perhaps the two things most notable to your users: [3a] An updated Company > Portal and Managed Browser are required for iOS 11, and [3b] Drag-and-drop > (a new feature of iOS 11) is disabled when a device is enrolled with Intune. > > > > *From:* Michael B. Smith > *Sent:* Monday, September 18, 2017 2:22 PM > *Subject:* iOS 11 is scheduled for release tomorrow... > > > > And that may not be a good thing in all cases… > > > > Known issues to be aware of: > > > > [1] Exchange ActiveSync is broken under certain configurations. Apple is > aware of the issue and pursuing a fix. > > > > [2] The default picture format for iPhones 7/8/X is changing. As a > Microsoft employee wrote earlier today: > > > > The new photo and video formats result in files about 1/2 size of the old > JPEG and video formats, while having better quality. The problem is that > new files will likely not open properly outside of your phone until > everything that you use to work with photos updates to work with new HEIF > formats. > > > > To check if your iOS 11 phone uses the new format, go to Settings > Camera > > Formats. "High Efficiency" is new and "Most Compatible" is the old / > current. > > > > I do not suggest to just turn this off; hey - getting files half the size > is super cool. Just realize that if you use the photos outside of your > phone that there might be temporary issues with viewing. > > > > Windows and OneDrive do not yet support the new formats. > > > > h/t ninob > > > > You may wish to suggest to your user communities that they delay upgrades > because of the EAS issue. >
