docs: CHANGELOG updated, version number bumped to 2.1.2

CHANGELOG.md

@@ -2,10 +2,14 @@
 
 All notable changes to this project will be documented in this file.
 
+## [2.1.2] - 2022-06-10
+### Fixed
+- Bug in `Corr.matrix_symmetric` fixed which appeared when a time slice contained an array with `None` entries.
+
 ## [2.1.1] - 2022-06-06
 ### Fixed
 - Bug in error propagation of correlated least square fits fixed.
-- Fit_result.gamma_method can now be called with kwargs
+- `Fit_result.gamma_method` can now be called with kwargs
 
 ## [2.1.0] - 2022-05-31
 ### Added

pyerrors/version.py

@@ -1 +1 @@
-__version__ = "2.2.0+dev"
+__version__ = "2.1.2"

setup.py

@@ -4,7 +4,7 @@ this_directory = Path(__file__).parent
 long_description = (this_directory / "README.md").read_text()
 
 setup(name='pyerrors',
-      version='2.2.0+dev',
+      version='2.1.2',
       description='Error analysis for lattice QCD',
       long_description=long_description,
       long_description_content_type='text/markdown',