diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
index 7fc2d54..11d4a25 100644
--- a/.github/pull_request_template.md
+++ b/.github/pull_request_template.md
@@ -21,7 +21,7 @@
     In case of bug fixes, please provide the list of supported branches where this fix should be also merged.
     Please uncomment following line, adjusting the corresponding target branches for the backport.
 -->
-<!-- @Mergifyio backport 3.0.x 1.7.x 1.6.x 1.3.x -->
+<!-- @Mergifyio backport 3.0.x 1.5.x 1.2.x -->
 
 <!-- If an issue is already opened, please uncomment next line with the corresponding issue number. -->
 <!-- Fixes #(issue) -->
@@ -48,5 +48,3 @@
 - [ ] The PR has a milestone assigned.
 - [ ] The title and description correctly express the PR's purpose.
 - [ ] Check contributor checklist is correct.
-- [ ] Check CI results: changes do not issue any warning.
-- [ ] Check CI results: failing tests are unrelated with the changes.
diff --git a/RELEASE_SUPPORT.md b/RELEASE_SUPPORT.md
new file mode 100644
index 0000000..6d11e0b
--- /dev/null
+++ b/RELEASE_SUPPORT.md
@@ -0,0 +1,16 @@
+# Release support
+
+Please, refer to the [master branch](https://github.com/eProsima/IDL-Parser/blob/master/RELEASE_SUPPORT.md) for the latest version of this document.
+
+*eProsima IDL parser* maintains several releases with different support cycles.
+**All of them are attached to different *eProsima Fast DDS-Gen* releases.**
+
+## *eProsima Fast DDS-Gen* and *IDL parser* version compatibility
+
+|Fast DDS-Gen Version|IDL parser Version|IDL parser Version branch|IDL parser Latest Release|
+|--------------------|------------------|-------------------------|-------------------------|
+|3.3|3.0|[3.0.x](https://github.com/eProsima/IDL-Parser/tree/3.0.x)|[v3.0.0](https://github.com/eProsima/IDL-Parser/releases/tag/v3.0.0)|
+|2.5|1.5|[1.5.x](https://github.com/eProsima/IDL-Parser/tree/1.5.x)|[v1.5.0](https://github.com/eProsima/IDL-Parser/releases/tag/v1.5.0)|
+|2.1|1.2|[1.2.x](https://github.com/eProsima/IDL-Parser/tree/1.2.x)|[v1.2.0](https://github.com/eProsima/IDL-Parser/releases/tag/v1.2.0)|
+
+For detailed information about the lifecycle of the different *Fast DDS-Gen* versions (and their corresponding counterpart in this repository), please refer to the [release support section of the Fast DDS-Gen repository](https://github.com/eProsima/Fast-DDS-Gen/blob/master/RELEASE_SUPPORT.md).