⚠️ Breaking Change
Impact Score: 7/10
Grafana v4.5.1 — Release Notes & Engineering Impact
Source available — automated, not human-reviewed
Component: grafana · Channel: stable. Automated analysis, not a compatibility certification. How this works.
Analysis updated: 2026-11-01.
Breaking-change evidence from the source
Breaking change * **InfluxDB/Elasticsearch**: The panel & data source option named "Group by time interval" is now named "Min time interval" and does now always define a lower limit for the auto group by time. Without having to use `>` prefix (that prefix still works). This should in theory have close to zero actual impact on existing dashboards. It does mean that if you used this setting to define a hard group by time interval of, say "1d", if you zoomed to a time range wide enough the time range could increase above the "1d" range as the setting is now always considered a lower limit.
⚡ Executive Summary (TL;DR)
Grafana v4.5.1. Source highlight: Download Page
Who Does This Impact? (Role-Based Analysis)
💻 Software Engineers & Devs
Check the source notes against the package and APIs you use before upgrading.
📊 Product & Engineering Leads
Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.
⚙️ DevOps & Security
Verify the target version, runtime requirements and rollback procedure in the official documentation.
⚠️ Breaking Changes & Deprecations (1)
- Breaking change * **InfluxDB/Elasticsearch**: The panel & data source option named "Group by time interval" is now named "Min time interval" and does now always define a lower limit for the auto group by time. Without having to use `>` prefix (that prefix still works). This should in theory have close to zero actual impact on existing dashboards. It does mean that if you used this setting to define a hard group by time interval of, say "1d", if you zoomed to a time range wide enough the time range could increase above the "1d" range as the setting is now always considered a lower limit.
✨ New Features & Capabilities (6)
- **Table panel**: Render cell values as links that can have an url template that uses variables from current table row. #3754
- **Elasticsearch**: Add ad hoc filters directly by clicking values in table panel #8052.
- **MySQL**: New rich query editor with syntax highlighting
- **Prometheus**: New rich query editor with syntax highlighting, metric & range auto complete and integrated function docs. #5117
- **Graphite**: Added new graphite 1.0 functions, available if you set version to 1.0.x in data source settings. New Functions: mapSeries, reduceSeries, isNonNull, groupByNodes, offsetToZero, grep, weightedAverage, removeEmptySeries, aggregateLine, averageOutsidePercentile, delay, exponentialMovingAverage, fallbackSeries, integralByInterval, interpolate, invert, linearRegression, movingMin, movingMax, movingSum, multiplySeriesWithWildcards, pow, powSeries, removeBetweenPercentile, squareRoot, time
- **InfluxDB**: Added paranthesis around tag filters in queries #9131
⚡ Performance & Enhancements (3)
- **GitHub OAuth**: Support for GitHub organizations with 100+ teams. #8846, thx @skwashd
- **Graphite**: Calls to Graphite api /metrics/find now include panel or dashboad time range (from & until) in most cases, #8055
- **Elasticsearch**: Ad-hoc filters now use query phrase match filters instead of term filters, works on non keyword/raw fields #9095.
🔧 Bug Fixes & Patches (6)
- **Modals**: Maintain scroll position after opening/leaving modal #8800
- **Templating**: You cannot select data source variables as data source for other template variables #7510
- **MySQL/Postgres**: Fix for max_idle_conn option default which was wrongly set to zero which does not mean unlimited but means zero, which in practice kind of disables connection pooling, which is not good. Fixes #8513
- **Security**: Security fix for api vulnerability (in multiple org setups).
- **Shortcuts**: Adds shortcut for creating new dashboard #8876 thx @mtanda
- **Graph**: Right Y-Axis label position fixed #9172
📄 View Raw Release Notes (Original Developer Log)
[Download Page](https://grafana.com/grafana/download/4.5.1)
[Installation Guide](http://docs.grafana.org/installation/)
[Release Notes](https://community.grafana.com/t/release-notes-for-grafana-v4-5-0/2573)
## New Features
* **Table panel**: Render cell values as links that can have an url template that uses variables from current table row. [#3754](https://github.com/grafana/grafana/issues/3754)
* **Elasticsearch**: Add ad hoc filters directly by clicking values in table panel [#8052](https://github.com/grafana/grafana/issues/8052).
* **MySQL**: New rich query editor with syntax highlighting
* **Prometheus**: New rich query editor with syntax highlighting, metric & range auto complete and integrated function docs. [#5117](https://github.com/grafana/grafana/issues/5117)
## Enhancements
* **GitHub OAuth**: Support for GitHub organizations with 100+ teams. [#8846](https://github.com/grafana/grafana/issues/8846), thx [@skwashd](https://github.com/skwashd)
* **Graphite**: Calls to Graphite api /metrics/find now include panel or dashboad time range (from & until) in most cases, [#8055](https://github.com/grafana/grafana/issues/8055)
* **Graphite**: Added new graphite 1.0 functions, available if you set version to 1.0.x in data source settings. New Functions: mapSeries, reduceSeries, isNonNull, groupByNodes, offsetToZero, grep, weightedAverage, removeEmptySeries, aggregateLine, averageOutsidePercentile, delay, exponentialMovingAverage, fallbackSeries, integralByInterval, interpolate, invert, linearRegression, movingMin, movingMax, movingSum, multiplySeriesWithWildcards, pow, powSeries, removeBetweenPercentile, squareRoot, timeSlice, closes [#8261](https://github.com/grafana/grafana/issues/8261)
- **Elasticsearch**: Ad-hoc filters now use query phrase match filters instead of term filters, works on non keyword/raw fields [#9095](https://github.com/grafana/grafana/issues/9095).
### Breaking change
* **InfluxDB/Elasticsearch**: The panel & data source option named "Group by time interval" is now named "Min time interval" and does now always define a lower limit for the auto group by time. Without having to use `>` prefix (that prefix still works). This should in theory have close to zero actual impact on existing dashboards. It does mean that if you used this setting to define a hard group by time interval of, say "1d", if you zoomed to a time range wide enough the time range could increase above the "1d" range as the setting is now always considered a lower limit.
## Changes
* **InfluxDB**: Change time range filter for absolute time ranges to be inclusive instead of exclusive [#8319](https://github.com/grafana/grafana/issues/8319), thx [@Oxydros](https://github.com/Oxydros)
* **InfluxDB**: Added paranthesis around tag filters in queries [#9131](https://github.com/grafana/grafana/pull/9131)
## Bug Fixes
* **Modals**: Maintain scroll position after opening/leaving modal [#8800](https://github.com/grafana/grafana/issues/8800)
* **Templating**: You cannot select data source variables as data source for other template variables [#7510](https://github.com/grafana/grafana/issues/7510)
## Bug Fixes
* **MySQL/Postgres**: Fix for max_idle_conn option default which was wrongly set to zero which does not mean unlimited but means zero, which in practice kind of disables connection pooling, which is not good. Fixes [#8513](https://github.com/grafana/grafana/issues/8513)
# 4.5.0 (2017-09-14)
## Fixes & Enhancements since beta1
* **Security**: Security fix for api vulnerability (in multiple org setups).
* **Shortcuts**: Adds shortcut for creating new dashboard [#8876](https://github.com/grafana/grafana/pull/8876) thx [@mtanda](https://github.com/mtanda)
* **Graph**: Right Y-Axis label position fixed [#9172](https://github.com/grafana/grafana/pull/9172)
* **General**: Improve rounding of time intervals [#9197](https://github.com/grafana/grafana/pull/9197), thx [@alin-amana](https://github.com/alin-amana)
# 4.5.1 (2017-09-15)
## Bug Fixes
* **MySQL**: Fixed issue with query editor not showing [#9247](https://github.com/grafana/grafana/issues/9247)