I haven’t seen any warping of my boards (yet).
For the records: my box arrived undamaged, although I still have to check the playing pieces.
Find the rulebook of the 2024 reprint here:
The rulebook of the original 2008 edition is still available from www.axisandallies.org :
http://www.axisandallies.org/wp-content/uploads/2011/12/Axis-Allies-50th-Anniversary.pdf
And here is the link to the official FAQ/errata:
Axis & Allies Anniversary FAQ.pdf
The official FAQ document includes the optional rules, that were not printed in prior editions of the rulebook:
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Edited to update links.
bump again, due to request :-)
bump
The first post has been updated to include the 2017 reprint.
The first post has been updated to include the 2024 reprint (issued by Renegade).