Sixteen `>=` floors become exact pins across the two Python packages, taking
five majors with them: mypy 1.13 -> 2.3.1, pylint 3.3 -> 4.0.7, pytest 8 -> 9,
pytest-cov 5 -> 7, bandit 1.7 -> 1.9.4, plus ruff 0.15 -> 0.16.5 and
requests/types-requests. A `>=` floor is satisfied by everything newer, so it
told a checker nothing about whether these repos were actually current.
Verified in a clean venv per repo, which is what both CI workflows do
(`pip install -r requirements.txt`): gatelock 389 tests at 100% coverage under
xvfb, crdt-sync 432 tests at 100%. No test change was needed for any of the
five majors.
**Open, and deliberately not in this commit:** `.pre-commit-config.yaml` pins
these same tools AGAIN via `rev:` (ruff v0.15.2, mypy v1.13.0, pylint v3.3.2),
independently of requirements.txt, and the gate does not read `rev:` pins at
all -- so the linters CI actually runs are still on the old majors. Bumping
them is a separate and much larger job: ruff 0.16 raises 71 findings here
(CPY001 alone accounts for many, since this repo selects ALL) and mypy 2.x
raises 60, mostly stricter implicit-re-export rules. One major per commit, and
that is several.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CRykabMwPgDzFHcARoqpaK
Extracted and generalized from diet_guard's existing tombstone-merge scheme
and GitHub Contents API client, extended with per-field HLC LWW so the same
library can also cover todo's mutable notes and wake_alarm's single-value
sync (Workstream D scoping decision, 2026-07-04). 100% branch coverage,
clean ruff/mypy/pylint/bandit.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017McuA1nAi6jBT1EaS5BrVf
