Add "available since" on Base64.sol

(cherry picked from commit bfd05d9646)
2022-02-01 20:04:02 -03:00
parent a9e5759711
commit ac8c53612a
1 changed files with 2 additions and 0 deletions
--- 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 {
    /**