> Release Notes > Release 4.3.1

Release 4.3.1

None

#1762, #1764 - Fixed issues with causing Discover Domain to generate attribute not supported log entries for deprecated attributes.
#1763 - Documented WebLogic Server Bug 37443991 as a known limitation.
#1765 - Fixed AttributeError when running Discover Domain with either -skip_archive or -remote (GitHub Issue 1607).
#1766 - Fixed AttributeError when running Discover Domain with either -skip_archive or -remote on different archive types (GitHub Issue 1608).
#1767 - Fixed Discover Domain command-line argument validation that allows both -skip_archive and -remote to be specified when they are mutually exclusive.
#1768 - Improved default value detection for Discover Domain when running against WebLogic Server 14.1.2.
#1769 - Cleaned up offline Discover Domain to exclude the JavaHome attribute in the NMProperties folder.
#1770 - Fixed secure mode detection to work properly in WebLogic Server 14.1.2. This is critical to reducing the number of attributes that show up in the model when using Discover Domain in offline mode.

SSH support requires a reasonably recent version of Bouncy Castle. WDT picks up Bouncy Castle from WLST so, for example, the 12.2.1.4.0 GA release fails with the following error, as mentioned at https://github.com/hierynomus/sshj/issues/895. Applying a recent PSU should resolve the issue for 12.2.1.4 and 14.1.1.
```
SEVERE Messages:
        1. WLSDPLY-20008: verifySSH argument processing failed: Failed to initialize SSH context: Failed to SSH connect to host myhost.oracle.com: no such algorithm: X25519 for provider BC
```
SSH support for the Update Domain Tool and Deploy Apps Tool does not work when using an archive file and the remote WebLogic Server is running on Windows using the optional, Windows-provided, OpenSSH component. This is due to an issue with the SSHJ library WDT is using. See https://github.com/hierynomus/sshj/issues/929 for more information.