# Phase 82: Dependency Pinning Baseline - Context

**Gathered:** 2026-04-11
**Status:** Implemented and verified
**Mode:** First implementation phase for `v1.50`

<domain>
## Phase Boundary

Open `v1.50` by replacing open-ended runtime dependency ranges with bounded
version ranges and guarding them with tests.

</domain>

<decisions>
## Implementation Decisions

### Locked decisions

- use conservative major-version upper bounds rather than exact lockfile pins
- keep `requirements.txt` as the packaging source of truth consumed by
  `setup.py`

</decisions>

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*Phase: 82-dependency-pinning-baseline*
*Context captured on 2026-04-11 after Phase 82 implementation and verification*
