diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8f609adeac..cda9554056 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@
 * [CHANGE] StoreGateway/Alertmanager: Add default 5s connection timeout on client. #6603
 * [CHANGE] Ingester: Remove EnableNativeHistograms config flag and instead gate keep through new per-tenant limit at ingestion. #6718
 * [CHANGE] Validate a tenantID when to use a single tenant resolver. #6727
+* [CHANGE] Ring: Add zone label to ring_members metric. #6900
 * [FEATURE] Distributor: Add an experimental `-distributor.otlp.enable-type-and-unit-labels` flag to add `__type__` and `__unit__` labels for OTLP metrics. #6969
 * [FEATURE] Distributor: Add an experimental `-distributor.otlp.allow-delta-temporality` flag to ingest delta temporality otlp metrics. #6934
 * [FEATURE] Query Frontend: Add dynamic interval size for query splitting. This is enabled by configuring experimental flags `querier.max-shards-per-query` and/or `querier.max-fetched-data-duration-per-query`. The split interval size is dynamically increased to maintain a number of shards and total duration fetched below the configured values. #6458
@@ -14,7 +15,7 @@
 * [FEATURE] Update prometheus alertmanager version to v0.28.0 and add new integration msteamsv2, jira, and rocketchat. #6590
 * [FEATURE] Ingester/StoreGateway: Add `ResourceMonitor` module in Cortex, and add `ResourceBasedLimiter` in Ingesters and StoreGateways. #6674
 * [FEATURE] Support Prometheus remote write 2.0. #6330
-* [FEATURE] Ingester: Support out-of-order native histogram ingestion. It automatically enabled when `-ingester.out-of-order-time-window > 0` and `-blocks-storage.tsdb.enable-native-histograms=true`. #6626 #6663
+* [FEATURE] Ingester: Support out-of-order native histogram ingestion. It is automatically enabled when `-ingester.out-of-order-time-window > 0` and `-blocks-storage.tsdb.enable-native-histograms=true`. #6626 #6663
 * [FEATURE] Ruler: Add support for percentage based sharding for rulers. #6680
 * [FEATURE] Ruler: Add support for group labels. #6665
 * [FEATURE] Query federation: Introduce a regex tenant resolver to allow regex in `X-Scope-OrgID` value. #6713
@@ -23,7 +24,7 @@
 * [FEATURE] Experimental Support Parquet format: Implement parquet converter service to convert a TSDB block into Parquet and Parquet Queryable. #6716 #6743
 * [FEATURE] Distributor/Ingester: Implemented experimental feature to use gRPC stream connection for push requests. This can be enabled by setting `-distributor.use-stream-push=true`. #6580
 * [FEATURE] Compactor: Add support for percentage based sharding for compactors. #6738
-* [FEATURE] Querier: Allow choosing PromQL engine via header. #6777
+* [FEATURE] Querier: Allow choosing PromQL engine via header `X-PromQL-EngineType`. #6777
 * [FEATURE] Querier: Support for configuring query optimizers and enabling XFunctions in the Thanos engine. #6873
 * [FEATURE] Query Frontend: Add support /api/v1/format_query API for formatting queries. #6893
 * [FEATURE] Query Frontend: Add support for /api/v1/parse_query API (experimental) to parse a PromQL expression and return it as a JSON-formatted AST (abstract syntax tree). #6978
@@ -43,9 +44,8 @@
 * [ENHANCEMENT] Ingester: Add a `cortex_ingester_active_native_histogram_series` metric to track # of active NH series. #6695
 * [ENHANCEMENT] Query Frontend: Add new limit `-frontend.max-query-response-size` for total query response size after decompression in query frontend. #6607
 * [ENHANCEMENT] Alertmanager: Add nflog and silences maintenance metrics. #6659
-* [ENHANCEMENT] Querier: limit label APIs to query only ingesters if `start` param is not been specified. #6618
+* [ENHANCEMENT] Querier: limit label APIs to query only ingesters if `start` param is not specified. #6618
 * [ENHANCEMENT] Alertmanager: Add new limits `-alertmanager.max-silences-count` and `-alertmanager.max-silences-size-bytes` for limiting silences per tenant. #6605
-* [ENHANCEMENT] Update prometheus version to v3.1.0. #6583
 * [ENHANCEMENT] Add `compactor.auto-forget-delay` for compactor to auto forget compactors after X minutes without heartbeat. #6533
 * [ENHANCEMENT] StoreGateway: Emit more histogram buckets on the `cortex_querier_storegateway_refetches_per_query` metric. #6570
 * [ENHANCEMENT] Querier: Apply bytes limiter to LabelNames and LabelValuesForLabelNames. #6568
@@ -74,7 +74,6 @@
 * [ENHANCEMENT] Distributor: Add native histograms max sample size bytes limit validation. #6834
 * [ENHANCEMENT] Querier: Support caching parquet labels file in parquet queryable. #6835
 * [ENHANCEMENT] Querier: Support query limits in parquet queryable. #6870
-* [ENHANCEMENT] Ring: Add zone label to ring_members metric. #6900
 * [ENHANCEMENT] Ingester: Add new metric `cortex_ingester_push_errors_total` to track reasons for ingester request failures. #6901
 * [ENHANCEMENT] Ring: Expose `detailed_metrics_enabled` for all rings. Default true. #6926
 * [ENHANCEMENT] Parquet Storage: Allow Parquet Queryable to disable fallback to Store Gateway. #6920
@@ -107,7 +106,7 @@
 * [BUGFIX] Compactor: Delete the prefix `blocks_meta` from the metadata fetcher metrics. #6832
 * [BUGFIX] Store Gateway: Avoid race condition by deduplicating entries in bucket stores user scan. #6863
 * [BUGFIX] Runtime-config: Change to check tenant limit validation when loading runtime config only for `all`, `distributor`, `querier`, and `ruler` targets. #6880
-* [BUGFIX] Distributor: Fix the `/distributor/all_user_stats` api to work during rolling updates on ingesters. #7026
+* [BUGFIX] Distributor: Fix `/distributor/all_user_stats` api to work during rolling updates on ingesters. #7026
 * [BUGFIX] Runtime-config: Fix panic when the runtime config is `null`. #7062
 * [BUGFIX] Scheduler: Avoid all queriers reserved for prioritized requests. #7057
 
diff --git a/VERSION b/VERSION
index 66e2ae6c25..457059eed6 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.19.1
+1.20.0-rc.0