diff --git a/CHANGELOG.md b/CHANGELOG.md
index a5985e55fa..70f6106f5f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,12 +2,57 @@
 
 ## Unreleased
 
-### 🧰 Bug fixes 🧰
+## v0.78.0
+
+This Splunk OpenTelemetry Collector release includes changes from the [opentelemetry-collector v0.78.2](https://github.com/open-telemetry/opentelemetry-collector/releases/tag/v0.78.2) and the [opentelemetry-collector-contrib v0.78.0](https://github.com/open-telemetry/opentelemetry-collector-contrib/releases/tag/v0.78.0) releases where appropriate.
+
+### 🛑 Breaking changes 🛑
 
-- Evaluate `--set` properties as yaml values ([#3175](https://github.com/signalfx/splunk-otel-collector/pull/3175))
-- Evaluate config converter updates to `--dry-run` content ([#3176](https://github.com/signalfx/splunk-otel-collector/pull/3176))
-- Support config provider uris in `--config` option values ([#3182](https://github.com/signalfx/splunk-otel-collector/pull/3182))
-- `smartagent`: Don't attempt to expand observer `endpoint` fields if host and port are unsupported ([#3187](https://github.com/signalfx/splunk-otel-collector/pull/3187))
+- (Contrib) `receiver/mongodbatlas`: Update emitted Scope name to "otelcol/mongodbatlasreceiver" ([#21382](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/21382))
+- (Contrib) `receivers`: Updating receivers that run intervals to use standard interval by default ([#22138](https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/22138))
+- (Contrib) `pkg/ottl`: Updates the `Int` converter to use a new `IntLikeGetter` which will error if the value cannot be converted to an int. ([#22059](https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/22059))
+  Affected components: transformprocessor, filterprocessor, routingprocessor, tailsamplingprocessor, countconnector. It is HIGHLY recommended to use each component's error_mode configuration option to handle errors returned by `Int`.
+
+### 💡 Enhancements 💡
+
+- (Splunk) Add `enabled` field support to `*.discovery.yaml` config ([#3207](https://github.com/signalfx/splunk-otel-collector/pull/3207))
+- (Contrib) `jmxreceiver`: Add the JMX metrics gatherer version 1.26.0-alpha to the supported jars hash list ([#22042](https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/22042))
+- (Contrib) `receivercreator`: add logs and traces support to receivercreator ([#19205](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/19205), [#19206](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/19206))
+- (Contrib) `pkg/ottl`: Add Log function ([#18076](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/18076))
+- (Contrib) `oracledbreceiver`: Adds support for `consistent gets` and `db block gets` metrics. Disabled by default. ([#21215](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/21215))
+- (Contrib) `pkg/batchperresourceattr`: Mark as not mutating as it does defensive copying. ([#21885](https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/21885))
+- (Contrib) `receiver/kafkareceiver`: Support configuration of initial offset strategy to allow consuming form latest or earliest offset ([#14976](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/14976))
+- (Contrib) `internal/filter`: Add `Log`, `UUID`, and `ParseJSON` converters to filterottl standard functions ([#21970](https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/21970))
+- (Contrib) `pkg/stanza`: aggregate the latter part of the split-log due to triggering the size limit ([#21241](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/21241))
+- (Contrib) `cmd/mdatagen`: Allow setting resource_attributes without introducing the metrics builder. ([#21516](https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/21516))
+- (Contrib) `receiver/mongodbatlasreceiver`: Allow collection of MongoDB Atlas Access Logs as a new feature of the MongoDBAtlas receiver. ([#21182](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/21182))
+- (Contrib) `pkg/ottl`: Add `FloatLikeGetter` and `FloatGetter` to facilitate float retrival for functions. ([#21896](https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/21896))
+- (Contrib) `pkg/ottl`: Add access to get and set span kind using a string ([#21773](https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/21773))
+- (Contrib) `processor/routingprocessor`: Instrument the routing processor with non-routed spans/metricpoints/logrecords counters (OTel SDK). ([#21476](https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/21476))
+- (Contrib) `exporter/splunkhec`: Improve performance and reduce memory consumption. ([#22018](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/22018))
+- (Contrib) `processor/transform`: Add access to the Log function ([#22014](https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/22014))
+- (Core) `batchprocessor`: Add support for batching by metadata keys. ([#4544](https://github.com/open-telemetry/opentelemetry-collector/issues/4544))
+- (Core) `service`: Add feature gate `telemetry.useOtelWithSDKConfigurationForInternalTelemetry` that will add support for configuring the export of internal telemetry to additional destinations in future releases ([#7678](https://github.com/open-telemetry/opentelemetry-collector/pull/7678), [#7641](https://github.com/open-telemetry/opentelemetry-collector/pull/7641))
+- (Core) `forwardconnector`: Promote to beta ([#7579](https://github.com/open-telemetry/opentelemetry-collector/pull/7579))
+- (Core) `featuregate`: Promote `featuregate` to the stable module-set ([#7693](https://github.com/open-telemetry/opentelemetry-collector/pull/7693))
+- (Core, Contrib, Splunk) Third-party dependency updates.
+
+### 🧰 Bug fixes 🧰
+
+- (Splunk) Evaluate `--set` properties as yaml values ([#3175](https://github.com/signalfx/splunk-otel-collector/pull/3175))
+- (Splunk) Evaluate config converter updates to `--dry-run` content ([#3176](https://github.com/signalfx/splunk-otel-collector/pull/3176))
+- (Splunk) Support config provider uris in `--config` option values ([#3182](https://github.com/signalfx/splunk-otel-collector/pull/3182))
+- (Splunk) `receiver/smartagent`: Don't attempt to expand observer `endpoint` fields if host and port are unsupported ([#3187](https://github.com/signalfx/splunk-otel-collector/pull/3187))
+- (Splunk) Replace deprecated `loglevel: debug` logging exporter field with `verbosity: detailed` in default configs ([#3189](https://github.com/signalfx/splunk-otel-collector/pull/3189))
+- (Contrib) `statsdreceiver`: Handles StatsD server not running when shutting down to avoid NPE ([#22004](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/22004))
+- (Contrib) `pkg/ottl`: Fix the factory name for the limit function ([#21920](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/21920))
+- (Contrib) `processor/filter`: Fix issue where the OTTL function `HasAttributeKeyOnDatapoint` was not usable. ([#22057](https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/22057))
+- (Contrib) `pkg/ottl`: Allow using capture groups in `replace_all_patterns` when replacing map keys ([#22094](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/22094))
+- (Contrib) `exporter/splunkhec`: Fix a bug causing incorrect data in the partial error returned by the exporter ([#21720](https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/21720))
+- (Core) `batchprocessor`: Fix return error for batch processor when consuming Metrics and Logs ([#7711](https://github.com/open-telemetry/opentelemetry-collector/pull/7711))
+- (Core) `batchprocessor`: Fix start/stop logic for batch processor ([#7708](https://github.com/open-telemetry/opentelemetry-collector/pull/7708))
+- (Core) `featuregate`: Fix issue where `StageDeprecated` was not usable ([#7586](https://github.com/open-telemetry/opentelemetry-collector/pull/7586))
+- (Core) `exporterhelper`: Fix persistent storage behaviour with no available space on device ([#7198](https://github.com/open-telemetry/opentelemetry-collector/issues/7198))
 
 ## v0.77.0