update changelog for v2.20.22

Author: saimonation

cterasdk/version.py

@@ -1 +1 @@
-__version__ = '2.20.20'
+__version__ = '2.20.22'

docs/source/UserGuides/Miscellaneous/Changelog.rst

@@ -1,17 +1,29 @@
 Changelog
 =========
 
-2.20.21
+2.20.22
 -------
 
-Related issues and pull requests on GitHub: `#319 <https://github.com/ctera/ctera-python-sdk/pull/319>`_
+Improvements
+^^^^^^^^^^^^
+
+* Refactored all file system modules to adopt the **Command** design pattern.
+* Added handling for HTTP errors during login, raising :py:class:`cterasdk.exceptions.auth.AuthenticationError`.
+* Enabled full support for both **synchronous** and **asynchronous** file system operations.
+* Replaced the `ShareRecipient` class with :py:class:`cterasdk.core.types.Collaborator`.
+* Enhanced exception handling for file system errors in both **Edge** and **Core** modules.
+
+2.20.21
+-------
 
 Bug Fixes
 ^^^^^^^^^
 
 * Fixed SNMPv3 configuration on Edge Filers - added missing XML class name for proper serialization
 * Fixed whitespace in SNMP docstring to resolve flake8 W293 warning
 
+Related issues and pull requests on GitHub: `#319 <https://github.com/ctera/ctera-python-sdk/pull/319>`_
+
 2.20.20
 -------