diff --git a/ChangeLog.md b/ChangeLog.md
index c401b31..ace2d2d 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -2,6 +2,176 @@ OpenCV Change Logs
==================
+version:4.1.0
+-------------
+
+*April, 2019*
+
+Spring update for OpenCV 4.x has been released.
+
+Highlights of this release:
+
+
+
+- DNN module:
+
+ - **TBD**
+
+
+
+- Performance improvements:
+
+ - More optimization using AVX2 instruction set.
+ - Automatic runtime dispatching is available for large set of functions from `core` and `imgproc` modules.
+
+
+
+- Android support:
+ - VideoCapture C++ interface supports [Android Media NDK (21+) video I/O file capture back-end](https://github.com/opencv/opencv/pull/14005)
+
+
+
+- And many other great patches from OpenCV community:
+
+ - [Matplotlib Perceptually Uniform Sequential colormaps](https://github.com/opencv/opencv/pull/13587)
+ - [Add keypoints matching visualization for real-time pose estimation tutorial](https://github.com/opencv/opencv/pull/13835)
+ - [Add Hand-Eye calibration methods](https://github.com/opencv/opencv/pull/13880)
+ - [Java: improved support for multidimensional arrays (Mat)](https://github.com/opencv/opencv/pull/13956)
+ - opencv_contrib: [Robust local optical flow (RLOF) implementations](https://github.com/opencv/opencv_contrib/pull/1940)
+ - opencv_contrib: [Implementation of Quasi Dense Stereo algorithm](https://github.com/opencv/opencv_contrib/pull/1941)
+ - opencv_contrib: [New module: Image Quality Analysis (IQA) API](https://github.com/opencv/opencv_contrib/pull/1990)
+ - opencv_contrib: [BRISQUE No Reference Image Quality Assessment (IQA) API](https://github.com/opencv/opencv_contrib/pull/2015)
+
+
+### Contributors
+
+
+opencv (77 contributors)
+
+```
+git shortlog --no-merges -ns 4.0.1..4.1.0
+ 118 Alexander Alekhin
+ 32 Dmitry Kurtaev
+ 16 Vitaly Tuzov
+ 13 Maksim Shabunin
+ 11 Namgoo Lee
+ 9 Rostislav Vasilikhin
+ 7 Quentin Chateau
+ 6 Sayed Adel
+ 6 smirnov-alexey
+ 5 Alexander Nesterov
+ 5 Alexey Smirnov
+ 5 LaurentBerger
+ 4 Giles Payne
+ 4 Pavel Rojtberg
+ 3 Andrey Golubev
+ 3 Brad Kelly
+ 3 Liubov Batanina
+ 3 Ruslan Garnov
+ 3 berak
+ 3 catree
+ 2 Christoph Rackwitz
+ 2 Kohei Yoshida
+ 2 Lee Jaehwan
+ 2 Pedro Ferreira da Costa
+ 2 Stefan Dragnev
+ 2 Suleyman TURKMEN
+ 2 Wu Zhiwen
+ 2 klemens
+ 2 npochhi
+ 2 zuoshaobo
+ 1 103yiran
+ 1 AKAMath
+ 1 Adrian Renner
+ 1 AnastasiaaSenina
+ 1 Arnaud Brejeon
+ 1 Augusto Fraga Giachero
+ 1 Ayush Pandey
+ 1 BALACHANDAR S
+ 1 Bharat123Rox
+ 1 CUI Hao (Lab)
+ 1 Christopher N. Hesse
+ 1 David Carlier
+ 1 Easton Liu
+ 1 ExpandingDev
+ 1 George Wilson
+ 1 Gregor Mittag
+ 1 Hannah McLaughlin
+ 1 Jaewoo Song
+ 1 Jim Zhou
+ 1 JoeHowse
+ 1 Josh Veitch-Michaelis
+ 1 Juha Reunanen
+ 1 Kangning Song
+ 1 Lindsay Roberts
+ 1 Lubov Batanina
+ 1 Lucas Towers
+ 1 Matthew K. Gumbel
+ 1 Nicolae Rosia
+ 1 Oleh
+ 1 Otto Seiskari
+ 1 Pierre Chatelier
+ 1 RAJKIRAN NATARAJAN
+ 1 Rajkiran Natarajan
+ 1 Ramez Rafla
+ 1 Raphael Graf
+ 1 Richard Veale
+ 1 Scott Ramsby
+ 1 Thang Tran
+ 1 Thomas Peters
+ 1 WuZhiwen
+ 1 atinfinity
+ 1 cftang
+ 1 iPanda
+ 1 mehlukas
+ 1 rpici
+ 1 winice
+ 1 x3lif
+```
+
+
+
+
+opencv_contrib (22 contributors)
+
+```
+git shortlog --no-merges -ns 4.0.1..4.1.0
+ 8 Namgoo Lee
+ 4 Pavel Rojtberg
+ 3 Alexander Alekhin
+ 3 clunietp
+ 2 Hamdi Sahloul
+ 2 Maksim Shabunin
+ 2 Raphael Graf
+ 1 Charles Taylor
+ 1 Dimitrios Psychogyios
+ 1 Dmitry Kurtaev
+ 1 JoeHowse
+ 1 Julian Seuffert
+ 1 Richard Veale
+ 1 Sreejith S
+ 1 Ted Steiner
+ 1 Tomoaki Teshima
+ 1 berak
+ 1 iindovina
+ 1 kushashwa ravi shrimali
+ 1 shimat
+ 1 tsenst
+ 1 utkarshg6
+```
+
+
+
+
+
+version:3.4.6
+-------------
+
+*April, 2019*
+
+OpenCV 3.4.6 has been released. Bug fixes, optimizations and other enhancements are propagated into OpenCV 4.1.0.
+
+
version:4.0.1
-------------
diff --git a/Home.md b/Home.md
index ba5709b..a7e83dd 100644
--- a/Home.md
+++ b/Home.md
@@ -9,7 +9,7 @@ General resources
- :speech_balloon: [Q&A forum](http://answers.opencv.org) - ask questions and share your knowledge by answering others' questions
- :books: [Documentation](https://docs.opencv.org/):
- - latest releases: [4.0.1](https://docs.opencv.org/4.0.1), [3.4.5](https://docs.opencv.org/3.4.5) and [2.4.13.7](https://docs.opencv.org/2.4.13.7)
+ - latest releases: [4.1.0](https://docs.opencv.org/4.1.0), [3.4.6](https://docs.opencv.org/3.4.6) and [2.4.13.7](https://docs.opencv.org/2.4.13.7)
- nightly releases: [master](https://docs.opencv.org/master) / [3.4](https://docs.opencv.org/3.4) / [2.4](https://docs.opencv.org/2.4) branch
- :hammer_and_wrench: [Changelog](ChangeLog) - highlights for each library release