# Terragrunt 0 85

> Apply Terragrunt 0.85 HCL, CLI, orchestration, migration, and behaviour changes. Load for Terragrunt work targeting 0.85 or later when the model's knowledge may predate the 2025-08-15 release.

- Skill: `cedws/terragrunt-0-85` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add cedws/terragrunt-0-85`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cedws/terragrunt-0-85/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: cedws (https://skillmd.com/u/cedws)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/cedws/terragrunt-0-85

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# Terragrunt 0.85

This overview applies to target Terragrunt versions of at least 0.85.

## CLI migration

Breaking change: all deprecated flags beginning with `--terragrunt-` were removed. Their modern counterparts from the CLI redesign are the supported replacements.

## Stack paths

Breaking change: `stack run` no longer assumes every generated unit lives below a sibling `.terragrunt-stack` directory. Units generated with `no_dot_terragrunt_stack = true` participate from their configured paths.

The same path-aware behaviour applies to `stack output`. Within `terragrunt.stack.hcl`, `find_in_parent_folders()` resolves from the stack file rather than the CLI working directory.

## Experiment

Experimental: `runner-pool` gained OpenTelemetry integration. It remained experiment-gated in this release.