Istanbul release notes The ServiceNow, Inc. Istanbul release contains new functionality and fixes to existing functionality. Patch releases and hotfixes provide problem fixes and are released on an as-needed schedule. Features and changes by productReview the new features and changes in this release by product.Available versions (Istanbul)The Istanbul family includes Enterprise patches and hot fixes, as well as releases for Password Reset, ODBC, and Mobile.Upgrade to IstanbulThe upgrade process moves your instance to a new ServiceNow release version. Understand the difference between upgrading and patching, release definitions, rollback and backup options, and how to test your non-production and production instance upgrades.Upgrade to Istanbul from GenevaWhen you upgrade from the Geneva release to the Istanbul release, understand the fixes in each release version, notable changes for the user interface, browser support, plugin updates, and each feature's upgrade and migration tasks if applicable.Changes to plugins in the Istanbul releaseThis table lists new plugins in the Istanbul release and existing plugins that were deprecated, renamed, or changed in some way.Browser supportBrowser support varies for each version of the user interface (UI). Most major browsers are supported.Accessibility 508 complianceThe instance includes features that support several specifications in Section 508 of the US compliance code to make the interface accessible to users with disabilities.