# Roadmap: v1.86 Hypothesis Route Transition Clearance Surface

## Result

`v1.86` is complete.

## Overview

`v1.86` closed the next post-`v1.85` research-control gap around
hypothesis-aware route transition clearance. It derived one bounded
`route_transition_clearance` summary from the current route transition
escalation plus operator-checkpoint lifecycle context, surfaced the bounded
clearance state through runtime status and replay, and proved the bounded
coexistence path with a dedicated isolated acceptance lane.

**Phases:** 160
**Total Plans:** 1
**Total Tasks:** 2
**Shipped:** 2026-04-12

## Phase Details

### Phase 160: Hypothesis Route Transition Clearance Surface

**Goal:** Add one durable route transition-clearance summary for the current
checkpoint-mediated release state and expose it through runtime/read-path/replay
flows without widening into fresh runtime mutation.

**Plans:** 1 plan

Plans:

- [x] `160-01`: add route transition-clearance summary to runtime/replay
  surfaces and isolated acceptance

**Outcome:**

- landed `route_transition_clearance` payload construction and rendering on
  the runtime/read-path layer
- surfaced `none`, `awaiting_checkpoint`, `blocked_on_checkpoint`, and
  `cleared` state through runtime status, the runtime protocol note, and
  replay
- aligned schema, docs, and isolated acceptance coverage for the bounded route
  transition-clearance path

## Milestone Summary

**Key Accomplishments:**

- route transition escalation and operator-checkpoint lifecycle now join into
  one explicit bounded clearance surface
- runtime status and replay now keep waiting, blocked, and released states
  visible without replacing transition escalation or helper mechanisms
- one isolated acceptance lane now proves bounded transition-clearance
  visibility stays declarative and does not widen into fresh runtime mutation

**Issues Resolved:**

- closed the gap where operators could see escalation but still had to infer
  whether a checkpoint still blocked the bounded transition
- closed the gap where checkpoint-mediated release still had no explicit
  transition-clearance surface

**Issues Deferred:**

- explicit route-transition follow-through after clearance
- automatic route commit and follow-up runtime mutation
- automatic branch spawning and multi-branch scheduling

**Technical Debt / Honest Gaps:**

- the first slice makes checkpoint-mediated release visible, but it does not
  yet surface one explicit follow-through lane for what bounded transition work
  should resume immediately after clearance

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For current planning state after `v1.86`, continue from the next fresh
milestone definition.
