Merge commit from fork

* Prevent empty groups

(cherry picked from commit 95090a0ec1f193104ba7d6d033a490d1515e54d8)

* Handle inflight proposals

(cherry picked from commit 855983471882068894ed7952b592ab3e61b464b9)

* Update changelog

* Imports only

* Set release date

* updates

* Update RELEASE_NOTES.md

* Update RELEASE_NOTES.md

* Update CHANGELOG.md

---------

Co-authored-by: Julien Robert <julien@rbrt.fr>
Co-authored-by: Alex | Interchain Labs <alex@interchainlabs.io>

CHANGELOG.md

@@ -37,6 +37,12 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ## [Unreleased]
 
+## [v0.47.16](/~https://github.com/cosmos/cosmos-sdk/releases/tag/v0.47.16) - 2025-02-20
+
+### Bug Fixes
+
+* [GHSA-x5vx-95h7-rv4p](/~https://github.com/cosmos/cosmos-sdk/security/advisories/GHSA-x5vx-95h7-rv4p) Fix Group module can halt chain when handling a malicious proposal
+
 ## [v0.47.15](/~https://github.com/cosmos/cosmos-sdk/releases/tag/v0.47.15) - 2024-12-16
 
 ### Bug Fixes

RELEASE_NOTES.md

@@ -1,18 +1,16 @@
-# Cosmos SDK v0.47.15 Release Notes
+# Cosmos SDK v0.47.16 Release Notes
 
 💬 [**Release Discussion**](/~https://github.com/orgs/cosmos/discussions/6)
 
 ## 🚀 Highlights
 
-This release fixes [ABS-0043/ABS-0044](/~https://github.com/cosmos/cosmos-sdk/security/advisories/GHSA-8wcc-m6j2-qxvm). Check the advisory for more information.
+This patch release fixes [GHSA-x5vx-95h7-rv4p](/~https://github.com/cosmos/cosmos-sdk/security/advisories/GHSA-x5vx-95h7-rv4p).
+It resolves a `x/group` module issue that can halt chain when handling a malicious proposal.
+Only users of the `x/group` module are affected by this issue.
 
-Additionally, this release is mainly here to disclose the incoming end-of-life of the `v0.47.x` line.
+We recommended to upgrade to this patch release as soon as possible.
+When upgrading from <= v0.47.15, please use a chain upgrade to ensure that 2/3 of the validator power upgrade to v0.47.16.
 
-Check out the [changelog](/~https://github.com/cosmos/cosmos-sdk/blob/v0.47.15/CHANGELOG.md) for an exhaustive list of changes or [compare changes](/~https://github.com/cosmos/cosmos-sdk/compare/v0.47.14...v0.47.15) from last release.
+## 📝 Changelog
 
-## End-of-Life Notice
-
-`v0.47.15` is the last release of the `v0.47.x` line. Per this version, the v0.47.x line reached its end-of-life.
-The SDK team maintains the [latest two major versions of the SDK](/~https://github.com/cosmos/cosmos-sdk/blob/main/RELEASE_PROCESS.md#major-release-maintenance). This means no features, improvements or bug fixes will be backported to the `v0.47.x` line. Per our policy, the `v0.47.x` line will receive security patches only.
-
-We encourage all chains to upgrade to Cosmos SDK Olympus (`rc`) (`v0.52.0`), or the `v0.50.x` line.
+Check out the [changelog](/~https://github.com/cosmos/cosmos-sdk/blob/v0.47.16/CHANGELOG.md) for an exhaustive list of changes or [compare changes](/~https://github.com/cosmos/cosmos-sdk/compare/v0.47.15...v0.47.16) from last release.