diff --git a/ChangeLog b/ChangeLog
index 3e0fbe01..c2d79261 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -8,6 +8,12 @@ incorrectly defined on 32-bit platforms. This has been fixed.
 compiler. This has been fixed.
  - The Android compilation scripts have been updated for NDK r14b.
  - armv7s-optimized code was re-added to iOS builds.
+ - The Argon2id variant of Argon2 has been implemented. The
+high-level `crypto_pwhash_str_verify()` function automatically detects
+the algorithm and can verify both Argon2i and Argon2id hashed passwords.
+The default algorithm for newly hashed passwords remains Argon2i in
+this version to avoid breaking compatibility with verifiers running
+libsodium <= 1.0.12.
 
 * Version 1.0.12
  - Ed25519ph was implemented, adding a multi-part signature API