chore(nervous-system): Update changelog for release 2026-05-08

rs/nns/governance/CHANGELOG.md

@@ -11,6 +11,26 @@ here were moved from the adjacent `unreleased_changelog.md` file.
 INSERT NEW RELEASES HERE
 
 
+# 2026-05-09: Proposal 141738
+
+http://dashboard.internetcomputer.org/proposal/141738
+
+## Added
+
+* Daily timer task that fetches ICP/XDR rates from the Exchange Rate Canister, maintains a 365-day price history in Governance state, and computes Mission 70 maturity modulation locally. The computed value is not yet consumed by spawning or disbursement; that switchover will happen in a follow-up PR.
+
+* `get_maturity_modulation` query endpoint that returns the current Mission 70 maturity modulation value, including `current_value_permyriad` and `updated_at_timestamp_seconds`.
+
+* Expose `staked_maturity_e8s_equivalent` on `NeuronInfo`, so external callers
+  can read staked maturity from `get_neuron_info` / `list_neurons` responses.
+
+## Changed
+
+* The first Mission 70 maturity modulation calculation skips the daily speed limit, so the initial
+  value reflects the target directly (subject to global bounds) instead of being clamped to a tiny
+  step away from zero.
+
+
 # 2026-04-25: Proposal 141565
 
 http://dashboard.internetcomputer.org/proposal/141565

rs/nns/governance/unreleased_changelog.md

@@ -9,19 +9,8 @@ on the process that this file is part of, see
 
 ## Added
 
-* Daily timer task that fetches ICP/XDR rates from the Exchange Rate Canister, maintains a 365-day price history in Governance state, and computes Mission 70 maturity modulation locally. The computed value is not yet consumed by spawning or disbursement; that switchover will happen in a follow-up PR.
-
-* `get_maturity_modulation` query endpoint that returns the current Mission 70 maturity modulation value, including `current_value_permyriad` and `updated_at_timestamp_seconds`.
-
-* Expose `staked_maturity_e8s_equivalent` on `NeuronInfo`, so external callers
-  can read staked maturity from `get_neuron_info` / `list_neurons` responses.
-
 ## Changed
 
-* The first Mission 70 maturity modulation calculation skips the daily speed limit, so the initial
-  value reflects the target directly (subject to global bounds) instead of being clamped to a tiny
-  step away from zero.
-
 ## Deprecated
 
 ## Removed

rs/registry/canister/CHANGELOG.md

@@ -11,6 +11,19 @@ here were moved from the adjacent `unreleased_changelog.md` file.
 INSERT NEW RELEASES HERE
 
 
+# 2026-05-09: Proposal 141739
+
+http://dashboard.internetcomputer.org/proposal/141739
+
+## Added
+* Added an optional field `initial_dkg_subnet_id` to `SplitSubnetPayload` and `FulfillSubnetRentalRequest`,
+  which allows the proposer to choose which subnet should be responsible for generating the initial key
+  material of the split or rented subnet.
+
+## Changed
+* Updated the response text of some failed registry mutations. "Blessed" -> "Elected".
+
+
 # 2026-04-25: Proposal 141566
 
 http://dashboard.internetcomputer.org/proposal/141566

rs/registry/canister/unreleased_changelog.md

@@ -8,12 +8,8 @@ on the process that this file is part of, see
 # Next Upgrade Proposal
 
 ## Added
-* Added an optional field `initial_dkg_subnet_id` to `SplitSubnetPayload` and `FulfillSubnetRentalRequest`,
-  which allows the proposer to choose which subnet should be responsible for generating the initial key
-  material of the split or rented subnet.
 
 ## Changed
-* Updated the response text of some failed registry mutations. "Blessed" -> "Elected".
 
 ## Deprecated