diff --git a/CHANGELOG.md b/CHANGELOG.md
index e00a5e2f..81ae70fd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -348,6 +348,21 @@
 - Classes were renamed and namespaced ([#243](https://github.com/phpseclib/phpseclib/issues/243))
 - The use of an autoloader is now required (e.g. Composer)
 
+## 1.0.21 - 2023-07-09
+
+- fix deprecation errors in newer PHP versions
+- OpenSSL 3.0.1+ deprecated some algorithms
+- RSA: add support for loading OpenSSH encrypted keys
+- RSA: add support for loading PuTTY v3 keys (#1737, #1733, #1531, #1490)
+- SSH2: if logging in with rsa-sha2-256/512 fails, try ssh-rsa (#1865)
+- SSH2: add EOF test isConnected() (#1926)
+- SFTP: try without path canonicalization if initial realpath() fails (#1796)
+- SFTP: fix chgrp() for version < 4 (#1730)
+- SFTP: try to delete dir even if it can't be opened (#1791)
+- SFTP: make it so SFTP::RESUME also sets offset of local file (#1921)
+- SFTP: SFTP::RESUME_START didn't work as described (#1921)
+- Crypt/Base: fix CTR mode with continuous buffer with non-eval PHP
+
 ## 1.0.20 - 2021-12-28
 
 SFTP: