chore(changelog): updates for beta-15 (#19041)

CHANGELOG.md

@@ -1,4 +1,8 @@
-## v2.0.0-beta.15 [unreleased]
+## v2.0.0-beta.15 [2020-07-23]
+
+### Breaking
+1. [19004](https://github.com/influxdata/influxdb/pull/19004): Removed the `migrate` command from the `influxd` binary.
+1. [18921](https://github.com/influxdata/influxdb/pull/18921): Restricted UI variable names to not clash with Flux reserved words
 
 ### Features
 
@@ -7,12 +11,17 @@
 1. [18912](https://github.com/influxdata/influxdb/pull/18912): Drop deprecated influx pkg command tree
 1. [18997](https://github.com/influxdata/influxdb/pull/18997): Add telegraf management commands to influx CLI
 1. [19030](https://github.com/influxdata/influxdb/pull/19030): Enable dynamic destination for the influx CLI configs file
+1. [19029](https://github.com/influxdata/influxdb/pull/19029): Navigating away from a dashboard cancels all pending queries
+1. [19003](https://github.com/influxdata/influxdb/pull/19003): Upgrade to Flux v0.74.0
 
 ### Bug Fixes
 
 1. [18891](https://github.com/influxdata/influxdb/pull/18891): Allow 0 to be the custom set minimum value for Y Domain
 1. [18969](https://github.com/influxdata/influxdb/pull/18969): Single Stat cells should render properly in Safari again
 1. [18974](https://github.com/influxdata/influxdb/pull/18974): Limit variable querying when submitting queries to used variables
+1. [19039](https://github.com/influxdata/influxdb/pull/19039): Fix an issue where switching orgs was not redirecting correctly
+1. [18989](https://github.com/influxdata/influxdb/pull/18989): Stopped fetching tags in the advanced builder
+
 
 ## v2.0.0-beta.14 [2020-07-08]