# Sprint 80 Plan: Program Consolidation and LTS Baseline

## Context

After large-scale expansion, the program needs a consolidated long-term-support
baseline. Sprint 80 formalizes LTS criteria and maintenance rhythms.

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## Goals

1. Define LTS baseline for adapters, policies, and matrix pairs
2. Freeze and certify an LTS support matrix snapshot
3. Create maintenance and deprecation schedules
4. Publish long-horizon roadmap with governance checkpoints

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## Steps

### Step 1029: LTS baseline criteria schema (12 tests)
### Step 1030: LTS candidate evaluator for language pairs (10 tests)
### Step 1031: Snapshot freeze workflow and integrity checks (10 tests)
### Step 1032: Deprecation policy model for unstable/obsolete pairs (10 tests)
### Step 1033: Maintenance cadence scheduler (10 tests)
### Step 1034: LTS risk watchlist and escalation hooks (8 tests)
### Step 1035: `whetstone_get_lts_support_matrix` MCP tool (8 tests)
### Step 1036: `whetstone_plan_deprecation_or_upgrade` MCP tool (8 tests)
### Step 1037: LTS publication bundle + operator handbook (8 tests)
### Step 1038: Sprint 80 integration summary + full-program regression (8 tests)

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## LTS Rule

- Only pairs with sustained certification and governance compliance enter LTS.