Qlik Sense September 2019 release notes 18
Upgrading from Qlik Sense 2.x to 3.x will modify the repository database. The upgraded 3.x database is no
longer compatible with Qlik Sense 2.x. It is important that you take a backup of the Qlik Sense 2.x site before
upgrading to Qlik Sense 3.x so that a rollback can be carried out if required.
Starting with the February 2018 release, the following endpoints changed
/qrs/about/api/default/content -> /qrs/about/api/default/app/content
/qrs/about/api/default/datasegment -> /qrs/about/api/default/app/datasegment
/qrs/about/api/default/internal -> /qrs/about/api/default/app/internal
/qrs/about/api/default/object -> /qrs/about/api/default/app/object
/qrs/about/api/default/detail ->
/qrs/about/api/default/executionresult/detail
/qrs/about/api/default/analyzeraccessgroup ->
/qrs/about/api/default/license/analyzeraccessgroup
/qrs/about/api/default/analyzeraccesstype ->
/qrs/about/api/default/license/analyzeraccesstype
/qrs/about/api/default/analyzeraccessusage ->
/qrs/about/api/default/license/analyzeraccessusage
/qrs/about/api/default/loginaccesstype ->
/qrs/about/api/default/license/loginaccesstype
/qrs/about/api/default/loginaccessusage ->
/qrs/about/api/default/license/loginaccessusage
/qrs/about/api/default/professionalaccessgroup ->
/qrs/about/api/default/license/professionalaccessgroup
/qrs/about/api/default/professionalaccesstype ->
/qrs/about/api/default/license/professionalaccesstype
/qrs/about/api/default/professionalaccessusage ->
/qrs/about/api/default/license/professionalaccessusage
/qrs/about/api/default/useraccessgroup ->
/qrs/about/api/default/license/useraccessgroup
/qrs/about/api/default/useraccesstype ->
/qrs/about/api/default/license/useraccesstype
/qrs/about/api/default/useraccessusage ->
/qrs/about/api/default/license/useraccessusage
Upgrading from Qlik Sense 3.1 SR2 to Qlik Sense June 2017 or later
Please refer to the online help for instructions: Qlik Sense upgrades and updates
Change of supported characters for virtual proxy prefix
Starting with the Qlik Sense June 2017 release, a change has been introduced regarding which characters
may be used in a virtual proxy prefix. This entails that some users may need to change virtual proxy prefixes
in existing Qlik Sense installations
Qlik Sense supports all unreserved characters specified in https://tools.ietf.org/html/rfc3986 in lower case as
proxy prefix. "/" is allowed but not as start or end of the prefix.
This means that the following characters are allowed:
"a-z", "0-9", "-", ".", "_", "~" and "/"
This is enforced by a _pattern regex attribute in the object schema which means that both QMC and QRS use
the same validation.
Please refer to the online help for instructions: Editing a virtual proxy.
Perform a database cleaning before migrating to 3.x
We recommend that customers with a large number of users or applications perform a database cleanup
before migrating from 2.0.x to 3.x.
After performing an upgrade in a multi-node environment, it can take a very long time for newly created
database items (such as sheets, applications, bookmarks, or tags) to appear on all nodes. This is caused by
long synchronization queues between the nodes, as a result of the upgrade. All new items will be at the end of
these queues. From Sense 2.2, the repository database is stored in RAM to improve the performance, for
users with very large databases the database can become larger than the available RAM on the server which