diff --git a/CHANGES.md b/CHANGES.md
index ea82a3226e0..7efeef8bb2d 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -47,7 +47,7 @@ creating a new release entry be sure to copy & paste the span tag with the
 updated. Only the first match gets replaced, so it's fine to leave the old
 ones in. -->
 -------------------------------------------------------------------------------
-## __cylc-8.0b1 (<span actions:bind='release-date'>Released 2021-04-??</span>)__
+## __cylc-8.0b1 (<span actions:bind='release-date'>Released 2021-04-21</span>)__
 
 ### Enhancements
 
diff --git a/cylc/flow/__init__.py b/cylc/flow/__init__.py
index 5f4b7a5d884..4f0b658929b 100644
--- a/cylc/flow/__init__.py
+++ b/cylc/flow/__init__.py
@@ -52,4 +52,4 @@ def environ_init():
 
 environ_init()
 
-__version__ = '8.0b1.dev'
+__version__ = '8.0b1'