1 files changed, 2 insertions, 0 deletions
diff --git a/UPGRADING b/UPGRADING
index f1d43f1a..1d7d5cfb 100644
--- a/UPGRADING
+++ b/UPGRADING
@@ -17,6 +17,8 @@ ALTER TABLE Users ADD COLUMN PGPKey VARCHAR(40) NULL DEFAULT NULL;
 
 4. Enable the PDO MySQL extension (pdo_mysql.so) in "php.ini".
 
+5. Upgrade to PHP>=5.4.0 or enable "short_open_tag" in "php.ini".
+
 From 1.9.0 to 1.9.1
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