diff --git a/packages/indexer-agent/CHANGELOG.md b/packages/indexer-agent/CHANGELOG.md
index e8391bbd7..1fadc615e 100644
--- a/packages/indexer-agent/CHANGELOG.md
+++ b/packages/indexer-agent/CHANGELOG.md
@@ -5,6 +5,31 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Added
+- A new migration to add the `protocolNetwork` column as a composite primary key to the following tables:
+    - Actions
+    - IndexingRules
+    - POIDisputes
+    - allocation_receipts
+    - vouchers
+    - transfer_receipts
+    - transfers
+    - allocation_summaries
+
+- The Agent can now be configured for multiple protocol networks.
+  To enable this feature, start the agent with the environment variable `INDEXER_AGENT_MULTINETWORK_MODE` set to
+  `true` and specify a directory containing YAML network specification files, one per network.
+
+- The Agent can be configured to automatically support subgraph transfers from L1 to L2. To enable
+  this feature, set the `enable-auto-migration-support` startup option to `true`.
+
+### Changed
+
+- The Agent GraphQL API was updated to accept (and in some cases require) a `protocolNetwork`
+  parameter to determine which network should be used for queries or mutations.
+
+- The `/network` endpoint exposed by the Agent now requires an additional path segment to disambiguate
+  which protocol network it should target, like `/network/mainnet` or `/network/arbitrum-one`.
 
 ## [0.20.17] - 2023-06-19
 ### Changed
diff --git a/packages/indexer-cli/CHANGELOG.md b/packages/indexer-cli/CHANGELOG.md
index a93f224e1..2bcb4e548 100644
--- a/packages/indexer-cli/CHANGELOG.md
+++ b/packages/indexer-cli/CHANGELOG.md
@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Added
+- Most CLI commands now require the protocol network to be identified using the option `--network`.
 
 ## [0.20.12] - 2023-02-19
 ### Added
diff --git a/packages/indexer-common/CHANGELOG.md b/packages/indexer-common/CHANGELOG.md
index f74559024..dfef356e8 100644
--- a/packages/indexer-common/CHANGELOG.md
+++ b/packages/indexer-common/CHANGELOG.md
@@ -5,6 +5,20 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Added
+
+- The `Network` type now holds references to all network-specific components, such as the `NetworkMonitor` and `Contracts` classes.
+
+- Introduced `GraphNode` class to replace `Indexer`, `Subgraph`, and `IndexingStatus` classes.
+
+- New general purpose `parser` module, used for input validation.
+
+- New `NetworkSpecification` type, which holds all information required to represent a protocol network.
+
+### Changed
+- Added `protocolNetwork` field to most types.
+
+
 
 ## [0.20.17] - 2023-06-19
 ### Changed