Well, this is the idea.
The fundamental core rules for Traveller right now are pretty solid and there is nothing we desperately want to change on that fundamental level. Also, we are very,
very leery of invalidating previous books - they are just too good to kill in the name of a new edition
So, the idea we are currently proceeding with is that, every so often, a core book (not necessarily
the Core Rulebook) will get an update, improving the art and graphics, and introducing some 'course corrections' for the rules. However, in doing this, we make sure nothing gets invalidated, so the 'Update' books are never
necessary purchases - if you have the original second edition 'Beowulf' cover Core Rulebook, you will still find you can use it with everything being released now.
Which is why with this latest Core Rulebook release, we actively tell people they do not need to buy it
Looking ahead, I can foresee a 'Ship of Theseus' problem, whereby Core Rulebook Update 2041 has seen a number of sequential changes that, individually, are minor but added together do kinda invalidate that original Beowulf book. At what point do we have a new edition by default?
At this time, I am leaving that one to the philosophers. The current thinking is that your existing rulebooks will not be invalidated by this process... but if it does ever happen, I think it will be over enough years that you might be okay with it? At least to the extent that you are happier picking up one new Core Rulebook than going through an entire new edition change.
This is something we are taking on board, and I think next year you will see the Traveller Rules Compendium - basically a hardback gathering all of those disparate rules scattered throughout various titles.
With that, you will just need the Core Rulebook and Rules Compendium to cover
all of the Traveller fundamental rules, and can then just add Companion, High Guard, Vehicle Handbook and Robot Handbook to taste.
Everything else is just there for you to really drill down into the detail of specific rules areas (such as the World Builder's Handbook, for example).
Does that sound like a good plan to everyone?