Preparing release v0.8.0.

Author: Anton Kucherov

CHANGELOG.md

@@ -7,6 +7,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 ### Changed
+
+### Added
+
+### Fixed
+
+## [0.8.0]
+### Changed
 - [PMM-3511](https://jira.percona.com/browse/PMM-3511): Switched to [mongo-go-driver](https://github.com/mongodb/mongo-go-driver).
 - [PMM-4168](https://jira.percona.com/browse/PMM-4168): Updated all dependencies including `github.com/prometheus/golang_client`.
 - Moved `opcounters`, `opcountersRepl` to `common_collector` (#146), thx [@nikita-b](https://github.com/nikita-b).
@@ -127,7 +134,8 @@ with source code locations.
 ### Added
 - First tagged version.
 
-[Unreleased]: https://github.com/percona/mongodb_exporter/compare/v0.7.1...HEAD
+[Unreleased]: https://github.com/percona/mongodb_exporter/compare/v0.8.0...HEAD
+[0.8.0]: https://github.com/percona/mongodb_exporter/compare/v0.7.1...v0.8.0
 [0.7.1]: https://github.com/percona/mongodb_exporter/compare/v0.7.0...v0.7.1
 [0.7.0]: https://github.com/percona/mongodb_exporter/compare/v0.6.3...v0.7.0
 [0.6.3]: https://github.com/percona/mongodb_exporter/compare/v0.6.2...v0.6.3

VERSION

@@ -1 +1 @@
-0.7.1
+0.8.0