From 55d69573fc6c9cf2924efeb6265a4f4423a6c17e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ernesto=20Garc=C3=ADa?= <ernestognw@gmail.com>
Date: Thu, 5 Sep 2024 12:39:42 -0600
Subject: [PATCH] Clarify Governor events' lack of indexed parameters (#5175)

Co-authored-by: Hadrien Croubois <hadrien.croubois@gmail.com>
---
 contracts/governance/IGovernor.sol | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/contracts/governance/IGovernor.sol b/contracts/governance/IGovernor.sol
index a35aa18aba2..67abfdbbae4 100644
--- a/contracts/governance/IGovernor.sol
+++ b/contracts/governance/IGovernor.sol
@@ -8,6 +8,9 @@ import {IERC6372} from "../interfaces/IERC6372.sol";
 
 /**
  * @dev Interface of the {Governor} core.
+ *
+ * NOTE: Event parameters lack the `indexed` keyword for compatibility with GovernorBravo events.
+ * Making event parameters `indexed` affects how events are decoded, potentially breaking existing indexers.
  */
 interface IGovernor is IERC165, IERC6372 {
     enum ProposalState {