chore(nervous-system): Update changelog for release 2026-08-14 (#11150)

Update CHANGELOG.md for today's release.

## NNS 
  - [143577](https://dashboard.internetcomputer.org/proposal/143577)
  - [143578](https://dashboard.internetcomputer.org/proposal/143578)
  - [143579](https://dashboard.internetcomputer.org/proposal/143579)

## SNS

Co-authored-by: Daniel Wong <daniel.wong@dfinity.org>

Author: daniel-wong-dfinity-org-twin

rs/nns/governance/CHANGELOG.md

@@ -11,6 +11,17 @@ here were moved from the adjacent `unreleased_changelog.md` file.
 INSERT NEW RELEASES HERE
 
 
+# 2026-08-14: Proposal 143577
+
+http://dashboard.internetcomputer.org/proposal/143577
+
+## Fixed
+
+* `validate_assign_noid_payload` no longer panics when a node provider has
+  `id = None`. It now skips such providers safely, preventing all
+  `AddNodeOperator` proposal submissions from being blocked.
+
+
 # 2026-08-07: Proposal 143410
 
 http://dashboard.internetcomputer.org/proposal/143410

rs/nns/governance/unreleased_changelog.md

@@ -17,8 +17,4 @@ on the process that this file is part of, see
 
 ## Fixed
 
-* `validate_assign_noid_payload` no longer panics when a node provider has
-  `id = None`. It now skips such providers safely, preventing all
-  `AddNodeOperator` proposal submissions from being blocked.
-
 ## Security

rs/nns/sns-wasm/CHANGELOG.md

@@ -11,6 +11,17 @@ here were moved from the adjacent `unreleased_changelog.md` file.
 INSERT NEW RELEASES HERE
 
 
+# 2026-08-14: Proposal 143578
+
+http://dashboard.internetcomputer.org/proposal/143578
+
+## Fixed
+
+* `get_available_sns_subnet` now rotates through all configured SNS subnets
+  (round-robin, based on the number of SNSs already deployed) instead of
+  always deploying new SNSes to the first subnet in `sns_subnet_ids`.
+
+
 # 2026-07-24: Proposal 143073
 
 http://dashboard.internetcomputer.org/proposal/143073

rs/nns/sns-wasm/unreleased_changelog.md

@@ -17,8 +17,4 @@ on the process that this file is part of, see
 
 ## Fixed
 
-* `get_available_sns_subnet` now rotates through all configured SNS subnets
-  (round-robin, based on the number of SNSs already deployed) instead of
-  always deploying new SNSes to the first subnet in `sns_subnet_ids`.
-
 ## Security

rs/registry/canister/CHANGELOG.md

@@ -11,6 +11,23 @@ here were moved from the adjacent `unreleased_changelog.md` file.
 INSERT NEW RELEASES HERE
 
 
+# 2026-08-14: Proposal 143579
+
+http://dashboard.internetcomputer.org/proposal/143579
+
+## Added
+
+Add a `replica_version_id` to `ReplicaVersionRecord`s, and backfill with a data migration.
+
+## Changed
+
+* Guest launch measurements are now required (when electing a new GuestOS version).
+
+## Removed
+
+The `blessed_replica_versions` record has been removed.
+
+
 # 2026-08-07: Proposal 143409
 
 http://dashboard.internetcomputer.org/proposal/143409

rs/registry/canister/unreleased_changelog.md

@@ -9,18 +9,12 @@ on the process that this file is part of, see
 
 ## Added
 
-Add a `replica_version_id` to `ReplicaVersionRecord`s, and backfill with a data migration.
-
 ## Changed
 
-* Guest launch measurements are now required (when electing a new GuestOS version).
-
 ## Deprecated
 
 ## Removed
 
-The `blessed_replica_versions` record has been removed.
-
 ## Fixed
 
 ## Security