[lesnik512]

Summary

#252 removed typing-extensions from dependencies on the grounds that the package never imports it. It does: broker.py, registrator.py, publisher/usecase.py and subscriber/usecase.py all import override from it, which 3.11 needs because typing.override arrived in 3.12. Installs still work only because faststream requires typing-extensions>=4.12.0. This puts the declaration back.

The floor is 4.12.0. override itself appeared in 4.4, but the 3.11 floors leg pins each direct dependency exactly at its floor, and anything below faststream 0.7.6's own >=4.12.0 would fail to resolve.

anyio and starlette are also imported without being declared. They are left as they are: faststream and fastapi guarantee them, so declaring them would add floors to maintain for no practical gain.

Checklist

• floors steps from _checks.yml run locally on 3.11, 3.12, 3.13 and 3.14. They resolve to typing-extensions 4.12.0, 4.12.0, 4.12.2 and 4.14.1, install with --no-build, and tests/test_unit.py plus tests/test_fake.py pass on each. The DB tests on that leg are left to CI.

[github-actions]

Benchmark gate

✅ gate passed

scenario	msg/s	delete/msg	WALrec/msg	WALB/msg	fpi	upd	del	dead_tup
consumer/w1/b10	2105	1.000	6.70	919	242	5000	5000	10000
consumer/w1/b100	2014	1.000	7.11	1154	243	5000	5000	10000
consumer/w2/b10	2724	1.000	6.71	922	242	5000	5000	10000
consumer/w2/b100	3444	1.000	7.11	1154	243	5000	5000	10000
consumer/w4/b10	2880	1.000	6.74	949	242	5000	5000	10000
consumer/w4/b100	3483	1.000	7.12	1154	243	5000	5000	10000
consumer/w1/b100/tfbs100	10838	0.010	6.11	1130	243	5000	5000	10000
consumer/w1/b100/interval1-10	2246	1.000	7.11	1154	243	5000	5000	10000
producer/w1/b100	5938	0.000	3.04	597	1	0	0	0
producer/w1/b100/ppt1	1758	0.000	4.10	679	23	0	0	0

Gated (fails the build): delete_calls + tuple counters (upd/del/ins) + the producer's insert_calls, exact; select_calls and other_calls within +2; wal_records within a 10% band; fetch_calls within 2x. msg/s, WAL bytes and total calls are informational (timing/FPI noise).