new images for regex color and negative y transform

docs/sources/guides/whats-new-in-v2-1.md

+---
+page_title: What's New in Grafana v2.1
+page_description: What's new in Grafana v2.1
+page_keywords: grafana, new, changes, features, documentation
+---
+
+#What's new in Grafana v2.1
+
+##More Dynamic Dashboards
+The Templating system is one of the most powerful and well-used features of Grafana. The 2.1 release brings numerous improvements that make Dashboards more dynamic than ever before.
+
+
+### Multi-Value Template Select
+Multi-Value Select allows for the selection of multiple template variables.
+These variables can be used in any Panel to make them more dynamic, and automatically show only the desired data.
+Multi-Value Select is also a basis for enabling Repeating Rows and Repeating Panels.
+
+![Multi-Value Select](/img/v2/multi-select.gif "Multi-Value Select")
+<br/><br/>
+
+### Repeating Rows and Panels
+It’s now possible to create a Dashboard that automatically adds (and removes) both Rows and Panels based on which Template variables you have selected.
+Any Row or Any Panel can be configured to repeat (duplicate itself) based on the Multi-Value Template variables selected.
+
+![Repeating Rows and Panels](/img/v2/panel-row-repeat.gif "Repeating Rows and Panels")
+<br/><br/>
+
+### Dashboard Links
+To support better navigation between Dashboarads, it is possible to create custom and dynamic links from individual Panels to appropriate Dashboards (1888)
+
+![Dashboard Links](/img/v2/panel-link.png "Dashboard Links")
+<br/><br/>
+
+### Better local Dashboard support
+Grafana can now index Dashboards saved locally as JSON from a given directory.
+
+> ***Note:*** Saving local dashboards back the folder is not supported; this feature is meant for statically generated JSON dashboards.
+
+- - -
+
+## Improved authentication engine
+
+### LDAP support
+
+### Basic Auth support
+You can now authenticate against the Grafana API utilizing a simple username and password with basic HTTP authentication.
+
+> ***Note:*** This can be useful for provisioning and config management systems that need to utilize the API without having to create an API key.
+
+
+### User authentication utilizing headers
+You can now authenticate utilizing a header (eg. X-Authenticated-User, or X-WEBAUTH-USER)
+
+> ***Note:*** this can be useful in situations with reverse proxies.
+
+
+### New “Read-only Editor” User Role
+There is a new User role available in this version of Grafana: “Read-only Editor”. This role disables the query editor for the user and puts him in a read-only sandbox of sorts.
+
+> ***Note:*** Even with this role assigned, Read-only Editors still have access to ALL metrics from that Datasource. This is not a way to achieve a true multitenant segregated environment with Grafana.
+
+- - -
+
+##Improved data source support
+
+### Improved Data Sources
+We continue to make progress on fully supporting InfluxDB 0.9, but it has proven to be a bit of a moving target. This Grafana release brings a much improved query editor for InfluxDB 0.9
+
+![InfluxDB Support](/img/v2/influx-query.gif "InfluxDB Support")
+<br/><br/>
+
+
+### OpenTSDB Data Source improvements
+Grafana now supports template variable values lookup queries, as well as limiting tags by metric
+
+> ***Note:*** OpenTSDB config option tsd.core.meta.enable_realtime_ts must enabled for OpenTSDB lookup api)
+
+
+### New Data Source: KairosDB
+Experimental support for the KairosDB is now shipping in Grafana. Thank you to < > for their hard work in getting it to this point.
+
+- - -
+
+## Panel Improvements
+
+### Graph Panel
+Define series color using regex rule    
+![Define series color using regex rule  ](/img/v2/regex_color.gif "Define series color using regex rule  ")
+
+New series style override, negative-y transform and stack groups
+![Negative-y Transform](/img/v2/negative-y.png "Negative-y Transform")
+
+![Negative-y Transform](/img/v2/negative-y-form.png "Negative-y Transform")
+
+### Singlestat Panel
+Now support string values - read more about [Singlestat Panels](../reference/singlestat.md)