5.6 with patch applied:

"5.6.2 xcb"
# 0 "" QHideEvent(Hide, 0x7ffca2a8c400)
nativeButton->winId 73400328
# 1 "button" QShowEvent(Show, 0x7ffca2a8c6f0)
# 2 "nativeButton" QShowEvent(Show, 0x7ffca2a8c6f0)
# 3 "nativeButtonWindow" QShowEvent(Show, 0x7ffca2a8c5f0)
# 4 "widget" QShowEvent(Show, 0x7ffca2a8c8a0)
# 5 "widgetWindow" QShowEvent(Show, 0x7ffca2a8c7a0)

# 6 "widgetWindow" QWindowStateChangeEvent(WindowStateChange, 0x7ffca2a8c5b0) QFlags<Qt::WindowState>(WindowNoState) -> QFlags<Qt::WindowState>(WindowNoState) [spont]
# 7 "widgetWindow" QWindowStateChangeEvent(WindowStateChange, 0x7ffca2a8c5b0) QFlags<Qt::WindowState>(WindowNoState) -> QFlags<Qt::WindowState>(WindowMinimized) [spont]
# 8 "widget" QWindowStateChangeEvent(WindowStateChange, 0x7ffca2a8c0b0) QFlags<Qt::WindowState>(WindowNoState) -> QFlags<Qt::WindowState>(WindowMinimized) [spont]
# 9 "widget" QHideEvent(Hide, 0x7ffca2a8bbf0) [spont]
# 10 "button" QHideEvent(Hide, 0x7ffca2a8ba80) [spont]
# 11 "nativeButton" QHideEvent(Hide, 0x7ffca2a8ba80) [spont]

# 12 "widgetWindow" QWindowStateChangeEvent(WindowStateChange, 0x7ffca2a8c5b0) QFlags<Qt::WindowState>(WindowMinimized) -> QFlags<Qt::WindowState>(WindowNoState) [spont]
# 13 "widget" QWindowStateChangeEvent(WindowStateChange, 0x7ffca2a8c0b0) QFlags<Qt::WindowState>(WindowMinimized) -> QFlags<Qt::WindowState>(WindowNoState) [spont]
# 14 "button" QShowEvent(Show, 0x7ffca2a8bac0) [spont]
# 15 "nativeButton" QShowEvent(Show, 0x7ffca2a8bac0) [spont]
# 16 "widget" QShowEvent(Show, 0x7ffca2a8bbf0) [spont]

# 17 "widgetWindow" QWindowStateChangeEvent(WindowStateChange, 0x7ffca2a8c5b0) QFlags<Qt::WindowState>(WindowNoState) -> QFlags<Qt::WindowState>(WindowMinimized) [spont]
# 18 "widget" QWindowStateChangeEvent(WindowStateChange, 0x7ffca2a8c0b0) QFlags<Qt::WindowState>(WindowNoState) -> QFlags<Qt::WindowState>(WindowMinimized) [spont]
# 19 "widget" QHideEvent(Hide, 0x7ffca2a8bbf0) [spont]
# 20 "button" QHideEvent(Hide, 0x7ffca2a8ba80) [spont]
# 21 "nativeButton" QHideEvent(Hide, 0x7ffca2a8ba80) [spont]

# 22 "widgetWindow" QWindowStateChangeEvent(WindowStateChange, 0x7ffca2a8c5b0) QFlags<Qt::WindowState>(WindowMinimized) -> QFlags<Qt::WindowState>(WindowNoState) [spont]
# 23 "widget" QWindowStateChangeEvent(WindowStateChange, 0x7ffca2a8c0b0) QFlags<Qt::WindowState>(WindowMinimized) -> QFlags<Qt::WindowState>(WindowNoState) [spont]
# 24 "button" QShowEvent(Show, 0x7ffca2a8bac0) [spont]
# 25 "nativeButton" QShowEvent(Show, 0x7ffca2a8bac0) [spont]
# 26 "widget" QShowEvent(Show, 0x7ffca2a8bbf0) [spont]
# 27 "widgetWindow" QHideEvent(Hide, 0x7ffca2a8be70)
# 28 "widget" QHideEvent(Hide, 0x7ffca2a8bf40)
# 29 "button" QHideEvent(Hide, 0x7ffca2a8bea0)                                                     
# 30 "nativeButton" QHideEvent(Hide, 0x7ffca2a8bea0)                                               
# 31 "nativeButtonWindow" QHideEvent(Hide, 0x7ffca2a8c680)    

For reference, 5.6 without patch:

"5.6.2 xcb"

# 6 "widgetWindow" QWindowStateChangeEvent(WindowStateChange, 0x7fff87df4290) QFlags<Qt::WindowState>(WindowNoState) -> QFlags<Qt::WindowState>(WindowNoState) [spont]
# 7 "widgetWindow" QWindowStateChangeEvent(WindowStateChange, 0x7fff87df4290) QFlags<Qt::WindowState>(WindowNoState) -> QFlags<Qt::WindowState>(WindowMinimized) [spont]
# 8 "widget" QWindowStateChangeEvent(WindowStateChange, 0x7fff87df3d90) QFlags<Qt::WindowState>(WindowNoState) -> QFlags<Qt::WindowState>(WindowMinimized) [spont]
# 9 "widget" QHideEvent(Hide, 0x7fff87df38d0)
# 10 "widgetWindow" QWindowStateChangeEvent(WindowStateChange, 0x7fff87df4290) QFlags<Qt::WindowState>(WindowMinimized) -> QFlags<Qt::WindowState>(WindowNoState) [spont]
# 11 "widget" QWindowStateChangeEvent(WindowStateChange, 0x7fff87df3d90) QFlags<Qt::WindowState>(WindowMinimized) -> QFlags<Qt::WindowState>(WindowNoState) [spont]
# 12 "widget" QShowEvent(Show, 0x7fff87df38d0)


"4.8.7" 
nativeButton->winId 75497482 
# 0 "button" QShowEvent(Show, 0x7ffcb2b0cda0, type = 17)
# 1 "nativeButton" QShowEvent(Show, 0x7ffcb2b0cda0, type = 17)
# 2 "widget" QShowEvent(Show, 0x7ffcb2b0cf40, type = 17)

# 3 "widget" QHideEvent(Hide, 0x7ffcb2b0c9e0, type = 18)[spont]
# 4 "button" QHideEvent(Hide, 0x7ffcb2b0c800, type = 18)[spont]
# 5 "nativeButton" QHideEvent(Hide, 0x7ffcb2b0c800, type = 18)[spont]
# 6 "widget" QWindowStateChangeEvent(WindowStateChange, 0x7ffcb2b0c7f0, type = 105)QFlags() -> QFlags(0x1) [spont] 

# 7 "button" QShowEvent(Show, 0x7ffcb2b0c800, type = 17)[spont]
# 8 "nativeButton" QShowEvent(Show, 0x7ffcb2b0c800, type = 17)[spont]
# 9 "widget" QShowEvent(Show, 0x7ffcb2b0c9e0, type = 17)[spont]
# 10 "widget" QWindowStateChangeEvent(WindowStateChange, 0x7ffcb2b0c7f0, type = 105)QFlags(0x1) -> QFlags() [spont] 

# 11 "widget" QHideEvent(Hide, 0x7ffcb2b0c9e0, type = 18)[spont]
# 12 "button" QHideEvent(Hide, 0x7ffcb2b0c800, type = 18)[spont]
# 13 "nativeButton" QHideEvent(Hide, 0x7ffcb2b0c800, type = 18)[spont]
# 14 "widget" QWindowStateChangeEvent(WindowStateChange, 0x7ffcb2b0c7f0, type = 105)QFlags() -> QFlags(0x1) [spont] 
# 15 "button" QShowEvent(Show, 0x7ffcb2b0c800, type = 17)[spont]
# 16 "nativeButton" QShowEvent(Show, 0x7ffcb2b0c800, type = 17)[spont]
# 17 "widget" QShowEvent(Show, 0x7ffcb2b0c9e0, type = 17)[spont]
# 18 "widget" QWindowStateChangeEvent(WindowStateChange, 0x7ffcb2b0c7f0, type = 105)QFlags(0x1) -> QFlags() [spont] 
# 19 "widget" QHideEvent(Hide, 0x7ffcb2b0c610, type = 18)
# 20 "button" QHideEvent(Hide, 0x7ffcb2b0c5a0, type = 18)
# 21 "nativeButton" QHideEvent(Hide, 0x7ffcb2b0c5a0, type = 18)