docs: Update upgrade guide for 1.1.0

UPGRADE.md

@@ -139,6 +139,16 @@ Do you want the latest features and patches without work and hassle? Are you loo
 secure deployment with zero effort? We can run it for you! If you're interested,
 [contact us now](mailto:[email protected])!
 
+## 1.1.0
+
+Several indices have been added to the SQL Migrations. There are no backwards incompatible changes in this release
+but we advise to do a test-run of the SQL Migrations before applying them, as they might lock some tables which
+may cause downtimes.
+
+> Make a backup of your database before applying this change.
+
+After applying these SQL Migrations, several queries and endpoints will be much faster than before.
+
 ## 1.0.9
 
 ### Schema Changes

go.mod

@@ -24,8 +24,6 @@ require (
 	github.com/mattn/go-runewidth v0.0.4 // indirect
 	github.com/meatballhat/negroni-logrus v0.0.0-20170801195057-31067281800f
 	github.com/mendsley/gojwk v0.0.0-20141217222730-4d5ec6e58103
-	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
-	github.com/modern-go/reflect2 v1.0.1 // indirect
 	github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826
 	github.com/oleiade/reflections v1.0.0
 	github.com/olekukonko/tablewriter v0.0.1