0.3.0 / 2016-07-08

• [CHANGE] Alerts are purely in memory and no longer persistent across restarts
• [FEATURE] Add SMTP LOGIN authentication mechanism

0.2.1 / 2016-06-23

• [ENHANCEMENT] Allow inheritance of route receiver
• [ENHANCEMENT] Add silence cache to silence provider
• [BUGFIX] Fix HipChat room number in integration URL

0.2.0 / 2016-06-17

This release uses a new storage backend based on BoltDB. You have to backup
and wipe your former storage path to run it.

• [CHANGE] Use BoltDB as data store.
• [CHANGE] Move SMTP authentification to configuration file
• [FEATURE] add /-/reload HTTP endpoint
• [FEATURE] Filter silenced alerts in web UI
• [ENHANCEMENT] reduce inhibition computation complexity
• [ENHANCEMENT] Add support for teams and tags in OpsGenie integration
• [BUGFIX] Handle OpsGenie responses correctly
• [BUGFIX] Fix Pushover queue length issue
• [BUGFIX] STARTTLS before querying auth mechanism in email integration

0.1.1 / 2016-03-23

• [BUGFIX] Fix global database lock issue
• [ENHANCEMENT] Improve SQLite alerts index
• [ENHANCEMENT] Enable debug endpoint

0.1.0 / 2016-02-23

This version is a full rewrite of the Alertmanager with a very different
feature set. Thus, there is no meaningful changelog.

Changes with respect to 0.1.0-beta2:

• [CHANGE] Expose same data structure to templates and webhook
• [ENHANCEMENT] Show generator URL in default templates and web UI
• [ENHANCEMENT] Support for Slack icon_emoji field
• [ENHANCEMENT] Expose incident key to templates and webhook data
• [ENHANCEMENT] Allow markdown in Slack 'text' field
• [BUGFIX] Fixed database locking issue

0.1.0-beta2 / 2016-02-04

• [BUGFIX] Properly set timeout for incoming alerts with fixed start time
• [ENHANCEMENT] Send source field in OpsGenie integration
• [ENHANCEMENT] Improved routing configuration validation
• [FEATURE] Basic instrumentation added

0.1.0-beta1 / 2016-01-08

• [BUGFIX] Send full alert group state on each update. Fixes erroneous resolved notifications.
• [FEATURE] HipChat integration
• [CHANGE] Slack integration no longer sends resolved notifications by default

0.1.0-beta0 / 2016-01-03

Bump version to 0.1.0-beta0

0.0.4 / 2015-09-09

• [BUGFIX] Fix version info string in startup message.
• [BUGFIX] Fix Pushover notifications by setting the right priority level, as
  well as required retry and expiry intervals.
• [FEATURE] Make it possible to link to individual alerts in the UI.
• [FEATURE] Rearrange alert columns in UI and allow expanding more alert details.
• [FEATURE] Add Amazon SNS notifications.
• [FEATURE] Add OpsGenie Webhook notifications.
• [FEATURE] Add -web.external-url flag to control the externally visible
  Alertmanager URL.
• [FEATURE] Add runbook and alertmanager URLs to PagerDuty and email notifications.
• [FEATURE] Add a GET API to /api/alerts which pulls JSON formatted
  AlertAggregates.
• [ENHANCEMENT] Sort alerts consistently in web UI.
• [ENHANCEMENT] Suggest to use email address as silence creator.
• [ENHANCEMENT] Make Slack timeout configurable.
• [ENHANCEMENT] Add channel name to error logging about Slack notifications.
• [ENHANCEMENT] Refactoring and tests for Flowdock notifications.
• [ENHANCEMENT] New Dockerfile using alpine-golang-make-onbuild base image.
• [CLEANUP] Add Docker instructions and other cleanups in README.md.
• [CLEANUP] Update Makefile.COMMON from prometheus/utils.

0.0.3 / 2015-06-10

• [BUGFIX] Fix email template body writer being called with parameters in wrong order.