Update FAQ and CHANGELOG

Author: shuds13

CHANGELOG.rst

@@ -47,7 +47,7 @@ Example user functions:
 :Note:
 
 * Tests were run on Linux and MacOS with Python versions 3.9, 3.10, 3.11, 3.12
-* Heterogeneous workflows tested on Polaris, and Perlmutter (NERSC). Recently tested on Frontier (OLCF).
+* Heterogeneous workflows tested on Aurora, Polaris, and Perlmutter (NERSC). Recently tested on Frontier (OLCF).
 * Tests were also run on Bebop and Improv LCRC systems.
 
 :Known Issues:

docs/FAQ.rst

@@ -93,6 +93,12 @@ Common Errors
       This error may depend on how multiprocessing handles an existing MPI
       communicator in a particular platform.
 
+.. dropdown:: **"UserWarning: Pydantic serializer warnings:Unexpected extra items present in tuple**
+
+  This warning happens with Pydantic 2.6.0. Upgrading to the latest version
+  (2.6.1+) should remove the warning.
+
+
 HPC Errors and Questions
 ------------------------