docs(release): note MR-770 __run__ cleanup in v0.6.1

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Ragnor Comerford 2026-06-01 10:10:30 +02:00
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# Omnigraph v0.6.1
## Highlights
- **Legacy `__run__` cleanup (MR-770).** Removed the last remnant of the Run
state machine (retired in v0.4.0): the `__run__` branch-name guard. A new
v2→v3 `__manifest` internal-schema migration sweeps any stale `__run__*`
staging branches on the first read-write open, so `__run__*` is no longer a
reserved branch name.
## Upgrade notes
- Graphs created before v0.4.0 are migrated automatically on the first
read-write open by a v0.6.1 binary (one-time `__manifest` stamp v2→v3 sweep
of stale `__run__*` branches). No action required. The inert
`_graph_runs.lance` / `_graph_run_actors.lance` dataset bytes remain until a
future `delete_prefix` primitive; a read-only open of an un-migrated legacy
graph still lists `__run__*` until its first read-write open.