chore: prepare v0.47.5

CHANGELOG.md

@@ -37,6 +37,8 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ## [Unreleased]
 
+## [v0.47.5](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.47.5) - 2023-08-21
+
 ### Features
 
 * (client/rpc) [#17274](https://github.com/cosmos/cosmos-sdk/pull/17274) Add `QueryEventForTxCmd` cmd to subscribe and wait event for transaction by hash.

RELEASE_NOTES.md

@@ -1,15 +1,17 @@
-# Cosmos SDK v0.47.4 Release Notes
+# Cosmos SDK v0.47.5 Release Notes
 
 💬 [**Release Discussion**](https://github.com/orgs/cosmos/discussions/categories/announcements)
 
 ## 🚀 Highlights
 
-Missed the v0.47.0 announcement? Read it [here](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.47.0).
-For this fourth patch release of the `v0.47.x` line, some of the notable changes include:
+Get ready for v0.50.0 and start integrating with the next [Cosmos SDK](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.50.0-rc.0) release.
 
-* An improvement in `<appd> prune` UX.
-* Improving the error handling when there is a snapshot creation failure.
+For this 5th patch release of the `v0.47.x` line, some of the notable changes include:
 
-Check out the [changelog](https://github.com/cosmos/cosmos-sdk/blob/v0.47.4/CHANGELOG.md) for an exhaustive list of changes or [compare changes](https://github.com/cosmos/cosmos-sdk/compare/release/v0.47.3...v0.47.4) from last release.
+* A new command for importing private keys encoded in hex. This complements the existing `import` command that supports mnemonic and key files.
+  Use `<appd> keys import <name> <hex>` to import a private key encoded in hex.
+* A new command, `rpc.QueryEventForTxCmd` for querying a transaction by its hash and blocking until the transaction is included in a block. It is useful as an alternative to the legacy `--sync block`.
+
+Check out the [changelog](https://github.com/cosmos/cosmos-sdk/blob/v0.47.5/CHANGELOG.md) for an exhaustive list of changes or [compare changes](https://github.com/cosmos/cosmos-sdk/compare/release/v0.47.4...v0.47.5) from last release.
 
 Refer to the [upgrading guide](https://github.com/cosmos/cosmos-sdk/blob/release/v0.47.x/UPGRADING.md) when migrating from `v0.46.x` to `v0.47.0`.