From ac8c53612ab4b22419b1c4c6c7637b2d53762091 Mon Sep 17 00:00:00 2001
From: Francisco Giordano <frangio.1@gmail.com>
Date: Tue, 1 Feb 2022 20:04:02 -0300
Subject: [PATCH] Add "available since" on Base64.sol

(cherry picked from commit bfd05d964604849b4282bb6a8337c8114da30826)
---
 contracts/utils/Base64.sol | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/contracts/utils/Base64.sol b/contracts/utils/Base64.sol
index 0bbd72a3e..8ff899891 100644
--- a/contracts/utils/Base64.sol
+++ b/contracts/utils/Base64.sol
@@ -5,6 +5,8 @@ pragma solidity ^0.8.0;
 
 /**
  * @dev Provides a set of functions to operate with Base64 strings.
+ *
+ * _Available since v4.5._
  */
 library Base64 {
     /**