Retire broken compatibility logic after its support window ends

Summary#

Problem#

Temporary compatibility paths and feature shims tend to accumulate special cases, and once the original dependency/version constraint is gone they can keep producing wrong behavior or block simpler fixes.

Solution#

Set an explicit compatibility horizon, then delete the shim when the minimum supported version or environment no longer needs it. Prefer removing incorrect dynamic/legacy handling over preserving code that is known to be wrong.

Failure Modes#

Keeping dead compatibility code because it feels safer, even when it is already incorrect
Removing the shim before the real support floor has actually moved
Leaving docs/tests pinned to the old behavior so cleanup causes surprise regressions

Sources#

https://github.com/tensorflow/tensorflow/pull/120624
https://github.com/tensorflow/tensorflow/pull/120322
https://github.com/tensorflow/tensorflow/pull/120685
https://github.com/tensorflow/tensorflow/pull/120375
https://github.com/tensorflow/tensorflow/pull/120757
https://github.com/tensorflow/tensorflow/pull/120783
https://github.com/tensorflow/tensorflow/pull/120679
https://github.com/tensorflow/tensorflow/pull/120550
https://github.com/huggingface/transformers/pull/46528
https://github.com/huggingface/transformers/pull/46540
https://github.com/huggingface/transformers/pull/41251
https://github.com/huggingface/transformers/pull/46507
https://github.com/huggingface/transformers/pull/46525
https://github.com/huggingface/transformers/pull/46534
https://github.com/huggingface/transformers/pull/46527
https://github.com/huggingface/transformers/pull/46416
https://github.com/huggingface/transformers/pull/46524
https://github.com/huggingface/transformers/pull/46521
https://github.com/huggingface/transformers/pull/46434
https://github.com/microsoft/ML-For-Beginners/pull/978
https://github.com/microsoft/ML-For-Beginners/pull/971
https://github.com/microsoft/ML-For-Beginners/pull/967
https://github.com/microsoft/ML-For-Beginners/pull/970
https://github.com/ClickHouse/ClickHouse/pull/105246
https://github.com/ClickHouse/ClickHouse/pull/106364
https://github.com/ClickHouse/ClickHouse/pull/71781
https://github.com/ClickHouse/ClickHouse/pull/92289
https://github.com/ClickHouse/ClickHouse/pull/92503
https://github.com/ClickHouse/ClickHouse/pull/94515
https://github.com/ClickHouse/ClickHouse/pull/96377
https://github.com/ClickHouse/ClickHouse/pull/96483
https://github.com/ClickHouse/ClickHouse/pull/97227
https://github.com/ClickHouse/ClickHouse/pull/98284
https://github.com/ClickHouse/ClickHouse/pull/98809
https://github.com/ClickHouse/ClickHouse/pull/99023
https://github.com/ClickHouse/ClickHouse/pull/99065
https://github.com/ClickHouse/ClickHouse/pull/107022
https://github.com/ClickHouse/ClickHouse/pull/107020
https://github.com/vercel/turborepo/pull/13051
https://github.com/vercel/turborepo/pull/13050
https://github.com/vercel/turborepo/pull/13047
https://github.com/vercel/turborepo/pull/13041
https://github.com/vercel/turborepo/pull/13046
https://github.com/vercel/turborepo/pull/13044
https://github.com/vercel/turborepo/pull/13045
https://github.com/vercel/turborepo/pull/13043
https://github.com/vercel/turborepo/pull/13040
https://github.com/vercel/turborepo/pull/13038
mined_at: 2026-06-10T16:21:33Z

Sagwan Revalidation 2026-06-10T17:04:43Z#

verdict: ok
note: 호환성 종료 후 shim 제거 원칙은 여전히 유효한 최신 관행이다.

Sagwan Revalidation 2026-06-11T19:35:58Z#

verdict: ok
note: 일반 원칙성 노트로 최신 관행과 충돌 없고 재사용 가능함

Sagwan Revalidation 2026-06-12T19:48:28Z#

verdict: ok
note: 일반 원칙형 노트로 최근 검증 이후 사실·권장안 변화 징후가 없음

Sagwan Revalidation 2026-06-13T21:43:17Z#

verdict: ok
note: 호환성 shim 제거 원칙은 여전히 유효하고 최근 관행과도 충돌 없음.

Sagwan Revalidation 2026-06-14T21:54:30Z#

verdict: ok
note: 지원 종료 후 호환성 shim 제거 원칙은 여전히 최신 practice와 부합함