diff --git a/CHANGELOG.md b/CHANGELOG.md
index 96cd71e54..8666d46e3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,78 @@
+## 0.15.0rc1 / 2015-06-24
+BREAKING CHANGES:
+
+- The default storage directory has been changed from `/tmp/metrics` to `data`
+  in the local directory.
+- The `rule_checker` tool has been replaced by `promtool` with different flags and more functionality.
+- Empty labels are now removed upon ingestion into the storage. Matching empty labels is
+  now equivalent to matching unset labels (`mymetric{label=""}` now matches
+  series that don't have `label` set at all).
+- If you are using Consul for service discovery, it will now choose Consul's
+  `ServiceAddress` field for the instance address instead of the `Address`
+  field, if it is present.
+- The special `__meta_consul_tags` label in Consul service discovery now
+  starts and ends with tag separators to enable easier regex matching.
+- The default scrape interval has been changed back from 1 minute to 10 seconds.
+
+ALL CHANGES:
+
+- [ENHANCEMENT] Prettify flag help output even more.
+- [CLEANUP] Use new v1 HTTP API for querying and graphing.
+- [FEATURE] Add optional `RUNBOOK` field to alert statements.
+- [FEATURE] Add `hashmod` relabel action to allow for horizontal sharding of Prometheus servers.
+- [BUGFIX] Fix shutdown deadlock in Consul SD code.
+- [BUGFIX] Periodically refresh services in Consul to recover from missing events.
+- [CLEANUP] Improve and simplify Dockerfile build steps.
+- [CLEANUP] Switch human-readable times on web UI to UTC.
+- [ENHANCEMENT] Show original configuration file contents on status page instead of serialized YAML.
+- [ENHANCEMENT] Improve UI of `/alerts` page.
+- [CLEANUP] Clean up initialization of remote storage queues.
+- [CLEANUP] Use `templates.TemplateExpander` for all page templates.
+- [ENHANCEMENT] Improve target URL handling and display.
+- [FEATURE] Add basic federation support on `/federate`.
+- [FEATURE] Add `honor_labels` scrape configuration option to not overwrite any labels exposed by the target.
+- [FEATURE] Allow configuring query parameters when scraping metrics endpoints.
+- [ENHANCEMENT] README.md updates.
+- [BUGFIX] Increment dirty counter metric in storage only if `setDirty(true)` is called.
+- [CHANGE] Remove `rule_checker` tool and add generic `promtool` CLI tool which allows checking rules and configuration files.
+- [CHANGE] Improve label matching performance and treat unset labels like empty labels in label matchers.
+- [BUGFIX] Fix consoles "Prometheus" link to point to /
+- [CHANGE] Change default storage directory to `data` in the current working directory.
+- [CHANGE] Use Consul's `ServiceAddress` instead of `Address` as the instance address when the former is set.
+- [FEATURE] Add version information endpoint under `/version`.
+- [FEATURE] Support Zookeeper Serversets as a service discovery mechanism.
+- [CLEANUP] Refactor main, flag handling, and web package.
+- [FEATURE] Allow individual ingested metrics to be relabeled.
+- [ENHANCEMENT] Always show selected graph range, regardless of available data.
+- [ENHANCEMENT] Change expression input field to multi-line textarea.
+- [ENHANCEMENT] Start HUP signal handler earlier to not exit upon HUP during startup.
+- [ENHANCEMENT] Raise error on unknown config parameters.
+- [CHANGE] Deprecate `keeping_extra` modifier keyword, rename it to `keep_common`.
+- [BUGFIX] Validate presence of regex field in relabeling configurations.
+- [CLEANUP] Improve and simplify build infrastructure, use go-bindata for web assets. Allow building without git.
+- [FEATURE] Allow scalar expressions in range queries, improve error messages.
+- [ENHANCEMENT] Improve display of target labels on status page.
+- [BUGFIX] Prevent overwrite of default global config when loading a configuration.
+- [FEATURE] Add pre-relabel target labels to status page.
+- [FEATURE] Added initial stable API version 1 under `/api/v1`, including ability to delete series and query more metadata.
+- [CLEANUP] General cleanup of rules and query language code.
+- [CLEANUP] Remove unused methods from `Rule` interface.
+- [BUGFIX] Validate label names in JSON target groups.
+- [CLEANUP] Simplify default config handling.
+- [CHANGE] Surround `__meta_consul_tags` value with tag separators.
+- [ENHANCEMENT] Improve initialization and routing functionality of web service.
+- [BUGFIX] Do not panic in `StringToDuration()` on wrong duration unit.
+- [BUGFIX] Exit on invalid rule files on startup.
+- [BUGFIX] Properly lex `\r` as whitespace in expression language.
+- [FEATURE] Allow deleting time series via the new v1 API.
+- [FEATURE] Allow loading rule files from an entire directory.
+- [CHANGE] Restore default ScrapeInterval of 1 minute instead of 10 seconds.
+- [CLEANUP] Move all utility packages into common `util` subdirectory.
+- [ENHANCEMENT] Updated vendored dependencies.
+- [ENHANCEMENT] Other minor fixes.
+
 ## 0.14.0 / 2015-06-01
-* [CHANGE] Configuration format changed and switched to YAML. 
+* [CHANGE] Configuration format changed and switched to YAML.
   (See the provided [migration tool](https://github.com/prometheus/migrate/releases).)
 * [ENHANCEMENT] Redesign of state-preserving target discovery.
 * [ENHANCEMENT] Allow specifying scrape URL scheme and basic HTTP auth for non-static targets.
diff --git a/version/VERSION b/version/VERSION
index a803cc227..8e64dfc7a 100644
--- a/version/VERSION
+++ b/version/VERSION
@@ -1 +1 @@
-0.14.0
+0.15.0rc1