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## 2.4.0-rc.0 / 2018-09-06
This release includes multiple bugfixes and features. Further, the WAL implementation has been re-written so the storage is not backward compatible. Prometheus 2.3 storage will work on 2.4 but not vice-versa.
* [CHANGE] Reduce remote write default retries #4279
* [CHANGE] Remove /heap endpoint #4460
* [FEATURE] Persist alert 'for' state across restarts #4061
* [FEATURE] Add API providing per target metric metadata #4183
* [FEATURE] Add API providing recording and alerting rules #4318 #4501
* [ENHANCEMENT] Brand new WAL implementation for TSDB. Backwards incompatible with previous WAL.
* [ENHANCEMENT] Show rule evaluation errors in UI #4457
* [ENHANCEMENT] Throttle resends of alerts to Alertmanager #4538
* [ENHANCEMENT] Send EndsAt along with the alert to Alertmanager #4550
* [ENHANCEMENT] Limit the samples returned by remote read endpoint #4532
* [ENHANCEMENT] Limit the data read in through remote read #4239
* [ENHANCEMENT] Coalesce identical SD configuations #3912
* [ENHANCEMENT] `promtool` : Add new commands for debugging and querying #4247 #4308 #4346 #4454
* [ENHANCEMENT] Update console examples for node_exporter v0.16.0 #4208
* [ENHANCEMENT] Optimize PromQL aggregations #4248
* [ENHANCEMENT] Remote read: Add Offset to hints #4226
* [ENHANCEMENT] `consul_sd` : Add support for ServiceMeta field #4280
* [ENHANCEMENT] `ec2_sd` : Maintain order of subnet_id label #4405
* [ENHANCEMENT] `ec2_sd` : Add support for custom endpoint to support EC2 compliant APIs #4333
* [ENHANCEMENT] `ec2_sd` : Add instance_owner label #4514
* [ENHANCEMENT] `azure_sd` : Add support for VMSS discovery and multiple environments #4202 #4569
* [ENHANCEMENT] `gce_sd` : Add instance_id label #4488
* [ENHANCEMENT] Forbid rule-abiding robots from indexing #4266
* [ENHANCEMENT] Log virtual memory limits on startup #4418
* [BUGFIX] Wait for service discovery to stop before exiting #4508
* [BUGFIX] Render SD configs properly #4338
* [BUGFIX] Only add LookbackDelta to vector selectors #4399
* [BUGFIX] `ec2_sd` : Handle panic-ing nil pointer #4469
* [BUGFIX] `consul_sd` : Stop leaking connections #4443
* [BUGFIX] Use templated labels also to identify alerts #4500
* [BUGFIX] Reduce floating point errors in stddev and related functions #4533
* [BUGFIX] Log errors while encoding responses #4359
## 2.3.2 / 2018-07-12
* [BUGFIX] Fix various tsdb bugs #4369
Goutham Veeramachaneni
6 years ago
committed by