diff --git a/README.md b/README.md
index bbf371d9..5f6354eb 100644
--- a/README.md
+++ b/README.md
@@ -172,6 +172,7 @@ Modules may have version numbers of their own. Those are mostly for use of the d
 
 # Change log
 
+- **v2.2** - benchmarks, alpha optimizer, fls, fast router, ob test, partial fill, limit amounts, CarbonOrderUI v1.6, notes folder; NBTest 46-51; Demo 3-8, 4-2, 4-3, 5-8, 7-1, 7-2
 - **v2.1** - new order book methodology, improved NBTest, added functionality to CarbonOrderUY, added CarbonCurves notebook, updated demo 3-2 to the new order book code
 - **v2.0** - slash notation for pair (breaking); disabled curves; remove aliases; order book functions and marginal price routing in CarbonOrderUI
 - **v1.5** - match constants, exclude future, move demos
diff --git a/carbon/__init__.py b/carbon/__init__.py
index 49b6ffb7..cc8aea9a 100644
--- a/carbon/__init__.py
+++ b/carbon/__init__.py
@@ -17,6 +17,6 @@
 
 P = CarbonPair
 
-__version__ = "2.1"
-__date__ = "29/Dec/2022"
+__version__ = "2.2"
+__date__ = "21/Jan/2022"