add Available since 4.1 comments

(cherry picked from commit 9a698e6b7b)
2021-04-19 20:55:16 +02:00
parent 915109b2c4
commit df7996b671
13 changed files with 24 additions and 2 deletions
--- a/contracts/utils/cryptography/ECDSA.sol
+++ b/contracts/utils/cryptography/ECDSA.sol
@ -31,7 +31,7 @@ library ECDSA {

        // Check the signature length
        // - case 65: r,s,v signature (standard)
-        // - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098)
+        // - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._
        if (signature.length == 65) {
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.