[Stephen Tu]

On auction 1s-2d-2s-?

2s just says 5+ S. I think it should also include inference 3-H.

If 2d bidder rebids 2nt, it shows "3-H; 2-S; 14+ total points". I don't think there's any particular reason it should be 3-H, 4-H is probably more accurate. I don't know if I'd guarantee absolutely 2 spades either. Maybe 1-2 spades? I can imagine bidding this way on various 1453 type of hands.

If 2d bidder rebids 3nt, currently it has this unwieldy range of 14-19 hcp. I would change it to something like 16-17. Stronger or weaker with outside stops and no spade fit bid 2nt.

[georgi]

Thanks for reporting.

Note taken.

Currently 2♥ has priority over 2♠ rebid so GIB won't skip 5-4 in majors.

Both 2♠ and 2NT explanations are adjusted in v28.