diff --git a/ChangeLog b/ChangeLog
index 98715ee9c..4a9d60f97 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,4 @@
-## [17.0.0-beta.1] - unreleased
+## [17.0.0-alpha.3] - 2026-08-31
 
 ### Added
 - Added `Game.get_infosets(player)`, returning a materialized list of one representative
diff --git a/build_support/GAMBIT_VERSION b/build_support/GAMBIT_VERSION
index 66f3a79ad..b90da9845 100644
--- a/build_support/GAMBIT_VERSION
+++ b/build_support/GAMBIT_VERSION
@@ -1 +1 @@
-17.0.0-alpha.2
+17.0.0-alpha.3