Update release notes; bump version number

Author: dweindl

CHANGELOG.md

@@ -2,6 +2,22 @@
 
 ## 0.1 series
 
+### 0.1.28
+
+* Fixed validation for output parameters columns in the condition table
+  by @dweindl in https://github.com/PEtab-dev/libpetab-python/pull/161
+* Added Python support policy
+  by @dweindl in https://github.com/PEtab-dev/libpetab-python/pull/162
+* Fixed typehints and deprecation warning
+  by @dweindl in https://github.com/PEtab-dev/libpetab-python/pull/165
+* Fixed SBML validation
+  by @dweindl in https://github.com/PEtab-dev/libpetab-python/pull/168
+* Fixed deprecation warning from `get_model_for_condition`
+  by @dweindl in https://github.com/PEtab-dev/libpetab-python/pull/169
+
+**Full Changelog**:
+https://github.com/PEtab-dev/libpetab-python/compare/v0.1.27...v0.1.28
+
 ### 0.1.27
 
 Features:

petab/version.py

@@ -1,2 +1,2 @@
 """PEtab library version"""
-__version__ = '0.1.27'
+__version__ = '0.1.28'