Update Updating and release notes

Updating-and-release-notes.md

@@ -1,4 +1,4 @@
-### Current version: `3.0.1b11`
+### Current version: `3.0.1b12`
 
 You can check the version installed by running `obi --version`
 
@@ -21,6 +21,10 @@ python3 setup.py install
 
 ### Release notes:
 
+* `3.0.1b12`:
+  - `ecopcr`: now accepting taxonomy from a different DMS than the reference sequences
+  - Various minor fixes and improvements
+
 * `3.0.1b11`:
   - `export`: integer missing values now imported as '0' for tabular format ; header now printed by default for tabular format ; and added option to only export specific keys/columns
   - Various minor fixes and improvements