Update version and release details

Author: shuds13

.wci.yml

@@ -16,8 +16,8 @@ description: |
 language: Python
 
 release:
-  version: 1.2.0
-  date: 2024-02-08
+  version: 1.2.1
+  date: 2024-02-23
 
 documentation:
   general: https://libensemble.readthedocs.io

CHANGELOG.rst

@@ -8,6 +8,27 @@ GitHub issues are referenced, and can be viewed with hyperlinks on the `github r
 
 .. _`github releases page`: https://github.com/Libensemble/libensemble/releases
 
+
+Release 1.2.1
+--------------
+
+:Date: February 23, 2024
+
+* Fix documentation bug where pydantic models do not display correctly.  #1249
+* Improve internal efficiency. #1243 / #1249
+
+:Note:
+
+* Tests were run on Linux and MacOS with Python versions 3.9, 3.10, 3.11, 3.12
+* Heterogeneous workflows tested on Aurora (ALCF), Frontier (OLCF), Polaris, and Perlmutter (NERSC).
+* Tests were also run on Bebop and Improv LCRC systems.
+
+:Known Issues:
+
+* See known issues section in the documentation.
+
+
+
 Release 1.2.0
 --------------
 

libensemble/version.py

@@ -1 +1 @@
-__version__ = "1.2.0+dev"
+__version__ = "1.2.1"