Bump version to 0.12.0

Author: ziotom78

CHANGELOG.md

@@ -1,5 +1,7 @@
 # HEAD
 
+# Version 0.12.0
+
 -   **Breaking change**: Disambiguate between “polarization angle” and “orientation” [#305](https://github.com/litebird/litebird_sim/pull/305). A few functions have been renamed as a consequence of this change; however, they are low-level functions that are used internally (`compute_pointing_and_polangle`, `all_compute_pointing_and_polangle`, `polarization_angle`), so external codes should be unaffected by this PR.
 
 -   **Breaking change**: Reworking of the IO, `write_observations` and `read_observations` are now part of the class simulation [#293](https://github.com/litebird/litebird_sim/pull/293)  

docs/source/conf.py

@@ -22,7 +22,7 @@
 author = "The LiteBIRD Simulation Team"
 
 # The full version, including alpha/beta/rc tags
-release = "0.11.0"
+release = "0.12.0"
 
 
 # -- General configuration ---------------------------------------------------

litebird_sim/version.py

@@ -1,4 +1,4 @@
 # -*- encoding: utf-8 -*-
 
 __author__ = "The LiteBIRD simulation team"
-__version__ = "0.11.0"
+__version__ = "0.12.0"