diff --git a/.github/ISSUE_TEMPLATE.md b/.github/ISSUE_TEMPLATE.md
index de815f1d..947f694c 100644
--- a/.github/ISSUE_TEMPLATE.md
+++ b/.github/ISSUE_TEMPLATE.md
@@ -12,6 +12,22 @@ For below: Omit the not applicable sections.
 
 -->
 
+<!--
+
+IMPORTANT NOTICE
+
+We will close issue and PR contributions via github at some time in the future
+(more information [here](https://imag-pim.org/blog/2018/06/10/off-of-github/))!
+
+Github is only used for CI right now, main development continues on the
+mailinglist.
+
+Please send issues and pull requests (either via `git request-pull` or `git
+format-patch` + `git send-email`) to
+[the imag mailinglist](https://imag-pim.org/mailinglist/).
+
+-->
+
 ### Issue type
 
 - [ ] Bug
diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index fcbcf537..e3eb0d77 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -9,6 +9,22 @@ possible! I hope it won't be more.
 
 -->
 
+<!--
+
+IMPORTANT NOTICE
+
+We will close issue and PR contributions via github at some time in the future
+(more information [here](https://imag-pim.org/blog/2018/06/10/off-of-github/))!
+
+Github is only used for CI right now, main development continues on the
+mailinglist.
+
+Please send issues and pull requests (either via `git request-pull` or `git
+format-patch` + `git send-email`) to
+[the imag mailinglist](https://imag-pim.org/mailinglist/).
+
+-->
+
 ### PR type
 
 - [ ] Bugfix