diff --git a/include/functions.php b/include/functions.php
index f1b016de7..1d7033c89 100644
--- a/include/functions.php
+++ b/include/functions.php
@@ -57,7 +57,7 @@
 	// do not cache files smaller than that (bytes)
 	define_default('CACHE_MAX_DAYS', 7);
 	// max age in days for various automatically cached (temporary) files
-    define_default('MAX_CONDITIONAL_INTERVAL', 3600*6);
+    define_default('MAX_CONDITIONAL_INTERVAL', 3600*12);
     // max interval between forced unconditional updates for servers
     // not complying with http if-modified-since (seconds)
 
diff --git a/locale/ru_RU/LC_MESSAGES/messages.mo b/locale/ru_RU/LC_MESSAGES/messages.mo
index 1a9fc2be6..565c0e8c9 100644
Binary files a/locale/ru_RU/LC_MESSAGES/messages.mo and b/locale/ru_RU/LC_MESSAGES/messages.mo differ
diff --git a/locale/ru_RU/LC_MESSAGES/messages.po b/locale/ru_RU/LC_MESSAGES/messages.po
index f0d48000f..3796076b8 100644
--- a/locale/ru_RU/LC_MESSAGES/messages.po
+++ b/locale/ru_RU/LC_MESSAGES/messages.po
@@ -1996,7 +1996,7 @@ msgstr ""
 #: classes/pref/feeds.php:744
 #: classes/pref/feeds.php:922
 msgid "Mark updated articles as unread"
-msgstr "Пометить все статьи как прочитанные?"
+msgstr "Отметить обновлённые статьи как непрочитанные"
 
 #: classes/pref/feeds.php:748
 msgid "Icon"