1.4.0 developing will be suspended two weeks

Because of Spring Festival (Chineae New Year, Lunar New Year), I (the author) will take two weeks vacation. So the developing for 1.4.0 will be suspended, and it will be resumed after two weeks.
Most modules of 1.4.0 have been finished and waiting for testing, the rest and the testing codes & examples will be added after my vacation.