Every time they change Bond actors, that's a reboot anyway.
Nope. Connery, Lazenby, Moore, Dalton, and Brosnan were playing one version of James Bond (with a shared history stretching back to 1962 and earlier)
Then why isn't Bond a hundred years old when Brosnan plays him?
You're being obtuse. Is that your thing around here?
I think it's pretty apparent that the pre-Craig films were all sharing a 'loose' continuity
-- Moore's 007 clearly was married to Tracy (see the teaser of 'For Your Eyes Only.'
--Felix Leiter's age changes every time he appears, no matter who is playing 007 but they still have the same history.
--Moore's 007 meets Quarrel's son in 'Live and Let Die' so clearly he shared the adventure with Honey and Quarrel Sr. in 'Dr. No.'
--Even more tellingly, a portrait of Bernard Lee as M is seen hanging in the Scotland office for MI6 at the beginning of 'The World is Not Enough.'
--Lois Maxwell is clearly playing the same Moneypenny she played against Connery, Lazenby, and Moore in all the films she appeared in.
Perhaps the most blindingly obvious clue that the pre-Craig films share the same continuity though would be Connery's appearance in 'Diamonds Are Forever' after Lazenby's in 'On Her Majesty's Secret Service,' specifically that Connery is on the hunt for righteous vengeance against SPECTRE and Blofeld for Tracy's murder.
Things changed with Craig, obviously, and some fans still can't wrap their narrow minds around the reboot-but-still-keeping-Academy-Award-winner-Judi-Dench-as-M, but that's really the only time there was any kind of "reboot" with the continuity.
You want a mind-bender? A pickle to get bent out of shape over? Ask yourself this: Robert Brown played Admiral Hargreaves in 'The Spy Who Loved Me.' Brown later replaced Bernard Lee as M. So, is Brown's M in 'Octopussy,' 'A View To A Kill,' 'The Living Daylights,' and 'Licence to Kill' a new character named M? Or did Hargreaves get promoted?