Use Authority Params

CHANGELOG.md

@@ -40,6 +40,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ### Breaking Changes
 
+* (x/consensus) [#25607](https://github.com/cosmos/cosmos-sdk/pull/25607) Move authority management from individual module keepers to consensus params. Modules no longer accept an `authority` parameter in keeper constructors.
 * [#25090](https://github.com/cosmos/cosmos-sdk/pull/25090) Moved deprecated modules to `./contrib`.  These modules are still available but will no longer be actively maintained or supported in the Cosmos SDK Bug Bounty program.
     * `x/group`
     * `x/nft`

UPGRADING.md

@@ -6,4 +6,72 @@ Note, always read the **App Wiring Changes** section for more information on app
 
 ### TLDR
 
-For a full list of changes, see the [Changelog](https://github.com/cosmos/cosmos-sdk/blob/release/v0.54.x/CHANGELOG.md).
+For a full list of changes, see the [Changelog](https://github.com/cosmos/cosmos-sdk/blob/release/v0.54.x/CHANGELOG.md).
+
+## Authority Parameter Removal
+
+Authority management has been centralized to the `x/consensus` module. Individual module keepers no longer accept an `authority` parameter in their constructors.
+
+### Affected Modules
+
+The following modules have removed the `authority` parameter from their keeper constructors:
+
+* `x/auth`
+* `x/bank`
+* `x/distribution`
+* `x/gov`
+* `x/mint`
+* `x/protocolpool`
+* `x/slashing`
+* `x/staking`
+* `x/upgrade`
+
+### Migration
+
+**Before:**
+
+```go
+app.BankKeeper = bankkeeper.NewBaseKeeper(
+    appCodec,
+    runtime.NewKVStoreService(keys[banktypes.StoreKey]),
+    app.AccountKeeper,
+    blockedAddresses,
+    authtypes.NewModuleAddress(govtypes.ModuleName).String(), // authority parameter - REMOVE
+    logger,
+)
+```
+
+**After:**
+
+```go
+app.BankKeeper = bankkeeper.NewBaseKeeper(
+    appCodec,
+    runtime.NewKVStoreService(keys[banktypes.StoreKey]),
+    app.AccountKeeper,
+    blockedAddresses,
+    logger, // authority parameter removed
+)
+```
+
+Apply this pattern to all affected modules listed above.
+
+### How It Works
+
+Modules now retrieve the authority from `ConsensusParams` via the context at runtime. The authority value is stored in consensus params and can be updated via governance proposals.
+
+**Example - Authority Validation:**
+
+```go
+func (k msgServer) UpdateParams(ctx context.Context, req *types.MsgUpdateParams) (*types.MsgUpdateParamsResponse, error) {
+    sdkCtx := sdk.UnwrapSDKContext(ctx)
+
+    // Retrieve and validate authority from consensus params
+    if sdkCtx.ConsensusParams().Authority.Authority != req.Authority {
+        return nil, errors.Wrapf(sdkerrors.ErrUnauthorized,
+            "invalid authority: expected %s, got %s",
+            req.Authority, sdkCtx.ConsensusParams().Authority.Authority)
+    }
+
+    // ... rest of the handler
+}
+```