diff --git a/docs/CONTRIBUTING.md b/docs/CONTRIBUTING.md
index a1af01bf8c..b79352759f 100644
--- a/docs/CONTRIBUTING.md
+++ b/docs/CONTRIBUTING.md
@@ -46,10 +46,13 @@ If you faced with **something more clomplex** like:
 * affects a whole file, module or even the architecture
 * needs deeper discussion
 
-then please tell
-* what do you experience
-* what do you expect to happen
-* how to reproduce the issue (maybe with an example code)
+then please
+* tell what do you experience
+* tell what do you expect to happen
+* tell how to reproduce the issue 
+* provide a simlified code example (better if can be tested with copy-paste)
+* attache your lv_conf.h (if you feel it's important)
+* logs and long codes should be attached in a file (instead of copying into a comment)
 
 ## How to suggest a feature?
 If you have a good and useful idea open issue to tell it! Please note the followings on suggesting new features:
diff --git a/docs/TODO_MINOR.md b/docs/TODO_MINOR.md
index 96ed5fd04a..58524dc9fc 100644
--- a/docs/TODO_MINOR.md
+++ b/docs/TODO_MINOR.md
@@ -19,16 +19,29 @@ Here are ideas which are not assigned to a minor version yet:
 - lv_ta: add placeholder text
 - image rotate
 
-
-## v5.2 (in progress)
-- [ ] Lua interface to craete GUI with script
+## v5.3 (planned)
+Mainly graphical/drawing improvments and Lua support
+- [ ] API extension: turn the relevant "lv_obj" functions to the specific type (lv_btn_set_size)
+- [ ] Lua interface to create GUI with script 
 - [ ] Arabic glyph convert (based on letter position)
+- [ ] Arc rawing
 - [ ] Right-to-left write support 
 - [ ] Bit based VDB: 1, 2 or 4 bit
-- [ ] lv_icon: new object type: an image wich acts as a button
-- [ ] lv_table: new object type: a table with rows and colums
-- [ ] triangle drawing
-- [ ] user defined error callback
+- [ ] Ttriangle drawing
+
+## v5.2 (in progress)
+Mainly new object and new feauters:
+- [ ] New object type: Listview (table) #137
+- [ ] New object type: Calendar
+- [ ] New object type: Icon (button like image) #182
+- [ ] New object type: QR code #199
+- [ ] lv_page: scroll on LV_GROUP_KEY_UP/DOWN/LEFT/RIGHT
+- [ ] lv_obj_align: option in lv_conf.h sav the last alignment's coordinate ad aply it on lv_obj_realign
+- [ ] lv_line: perpndicular line ending
+- [ ] lv_gauge: option to put lables outside of the scale
+- [ ] lv_img: png support #254
+- [ ] lv_tabview: add option to put the tab button to the bottom
+- [ ] Error callback: add an option to register a callback called on error
 - [ ] Support more character coding (e.g. UTF8, UTF16 etc)
 
 ## v5.1 (released on: 09.03.2018)
diff --git a/docs/TODO_PATCH.md b/docs/TODO_PATCH.md
index 309915f720..bb1331f7fa 100644
--- a/docs/TODO_PATCH.md
+++ b/docs/TODO_PATCH.md
@@ -6,8 +6,22 @@ The bugfixes of the still not released version are in `beta` branche.
 ## Contributing
 Please create an issue to introduce a bug instead of adding pull request to this file.
 
-## v5.1.1 (in progress)
-- [ ] lv_line: set line.width ext. size to not trim parts on x = 0, y = 0 coordinates
+## v5.1.1 (released on: 20.05.2018)
+- [x] lv_line: set line.width ext. size to not trim parts on x = 0, y = 0 coordinates
+- [x] lv_conf.h: add LV_COMPILER_VLA_SUPPORTED
+- [x] lv_group_create: init focus_cb
+- [x] fix of 16 bit image drawing with alpha bytes
+- [x] fix text opacity
+- [x] lv_mbox: enable navigation with LV_GROUP_KEY_DOWN/UP too
+- [x] lv_conf.h: add LV_COMPILER_VLA_SUPPORTED
+- [x] lv_slider: inicator draw bugfix
+- [x] lv_slider: draw greater background on negative padding if knob_in == 1
+- [x] mono theme: fix typo
+- [x] style animations: add opacity handling to image, text and line
+- [x] lv_kb: before ok/close action don't deassign the lv_ta if there is user defined action
+- [x] in lv_objx_set_... functions apply the new value only if it's different from the current
+- [x] don't invalide hidden objects
+- [x] lv_group_del: remove the objects from the groups too
 
 ## v5.0.3 (released on: 09.03.2018)
 - [x] lv_chart: Fix the use of point_num more then 256 (Thanks to upbeat27) 
diff --git a/lv_objx/lv_tabview.c b/lv_objx/lv_tabview.c
index 39cb837d92..9841676a64 100644
--- a/lv_objx/lv_tabview.c
+++ b/lv_objx/lv_tabview.c
@@ -241,7 +241,6 @@ void lv_tabview_set_tab_act(lv_obj_t * tabview, uint16_t id, bool anim_en)
     anim_en = false;
 #endif
     lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
-    if(ext->tab_cur == id) return;
 
     lv_style_t * style = lv_obj_get_style(ext->content);
 
diff --git a/lv_themes/lv_theme.h b/lv_themes/lv_theme.h
index 22e7b24392..448a2f1666 100644
--- a/lv_themes/lv_theme.h
+++ b/lv_themes/lv_theme.h
@@ -260,6 +260,7 @@ lv_theme_t * lv_theme_get_current(void);
 #include "lv_theme_night.h"
 #include "lv_theme_zen.h"
 #include "lv_theme_mono.h"
+#include "lv_theme_material.h"
 
 #ifdef __cplusplus
 } /* extern "C" */