diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0e0ee6d..871c6a6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Changelog
 
+-   **0.19.0** (September 23, 2026)
+    -   Bugfixes:
+        -   Fixed `exclude_automorphisms` undercounting matches: symmetry detection now respects negative edges, edge actions, and static and dynamic node and edge constraints, and symmetry breaking uses Grochow-Kellis orbit conditions so rotational symmetries such as cycles return one match per subgraph (#170).
 -   **0.18.0** (July 25, 2026)
     -   Bugfixes:
         -   Fixed NetworkX direction-agnostic, negative-edge, multigraph constraint, and result-limit handling.
diff --git a/dotmotif/__init__.py b/dotmotif/__init__.py
index 33a09b3..492c755 100644
--- a/dotmotif/__init__.py
+++ b/dotmotif/__init__.py
@@ -35,7 +35,7 @@
 from .executors.NetworkXExecutor import NetworkXExecutor
 from .executors.GrandIsoExecutor import GrandIsoExecutor
 
-__version__ = "0.18.0"
+__version__ = "0.19.0"
 
 DEFAULT_MOTIF_PARSER = ParserV2