PROTON-1668: update versions for 0.18.1-rc1
diff --git a/proton-c/bindings/python/docs/conf.py b/proton-c/bindings/python/docs/conf.py
index 97d65c9..f311d80 100644
--- a/proton-c/bindings/python/docs/conf.py
+++ b/proton-c/bindings/python/docs/conf.py
@@ -48,9 +48,9 @@
# built documents.
#
# The short X.Y version.
-version = '0.19.0'
+version = '0.18.1'
# The full version, including alpha/beta/rc tags.
-release = '0.19.0-SNAPSHOT'
+release = '0.18.1'
# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.
diff --git a/version.txt b/version.txt
index aa2ab03..249afd5 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-0.19.0-SNAPSHOT
+0.18.1
