diff --git a/.travis.yml b/.travis.yml
index 2791fa7af2e17b798318211194eba5ec5e6131c4..c9b555bb2093fbcd6b141a1b1c0fed1532e247b4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,7 +24,7 @@ php:
 
 env:
  global:
-  - MOODLE_BRANCH=MOODLE_34_STABLE
+  - MOODLE_BRANCH=MOODLE_35_STABLE
  matrix:
   - DB=pgsql
   - DB=mysqli
diff --git a/CHANGES.md b/CHANGES.md
index 2d965d5668e3fd018d5b8322d37b97bd4a06cc6f..2bbdd3f504bcee6aa229bc3d629523add956e0e4 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -4,6 +4,10 @@ moodle-block_course_overview_campus
 Changes
 -------
 
+### Unreleased
+
+* 2018-05-29 - Check compatibility for Moodle 3.5, no functionality change.
+
 ### v3.4-r2
 
 * 2018-05-16 - Implement Privacy API.
diff --git a/README.md b/README.md
index 03e325a631f35ef5a5e15e592bab65073e68d835..1339da321113b4b7ac648eb1efb12b5209919404 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ Moodle block which provides all functionality of block_course_overview, provides
 Requirements
 ------------
 
-This plugin requires Moodle 3.4+
+This plugin requires Moodle 3.5+
 
 
 Motivation for this plugin
@@ -143,7 +143,8 @@ Theme support
 -------------
 
 This plugin should work with all Bootstrap based Moodle themes.
-It has been developed on and tested with Moodle Core's Clean and Boost themes.
+It has been developed on and tested only with Moodle Core's Boost theme.
+While this plugin should also work with Moodle Core's legacy Clean theme or third party themes, we can't support any other theme than Boost.
 
 This plugin also provides a fallback for browsers with JavaScript disabled.
 
diff --git a/version.php b/version.php
index eaffc14fec6b5f4bee4c68b08fecc3b509880915..625246d0bdfb63c18b51ca383e5bc95e2207472e 100644
--- a/version.php
+++ b/version.php
@@ -27,5 +27,5 @@ defined('MOODLE_INTERNAL') || die();
 $plugin->component = 'block_course_overview_campus';
 $plugin->version = 2018051700;
 $plugin->release = 'v3.4-r2';
-$plugin->requires = 2017111300;
+$plugin->requires = 2018051700;
 $plugin->maturity = MATURITY_STABLE;