[
{ type: install
  message: <<EOM
LMDB 1.0 introduced an incompatible on-disk file format change.
Databases created with LMDB 0.9.x cannot be opened with LMDB 1.0.

If you are migrating from LMDB 0.9.x, you must export your existing
databases using the old mdb_dump and re-import them with the new
mdb_load:

  # mdb_dump -a /path/to/db > /tmp/mydb.dump
  # mdb_load -f /tmp/mydb.dump /path/to/newdb

There is no support in LMDB 1.0 for operating directly on v0.9 DB files.
EOM
}
{ type: upgrade
  maximum_version: "1.0.0"
  message: <<EOM
LMDB 1.0 introduced an incompatible on-disk file format change.
Databases created with LMDB 0.9.x cannot be opened with LMDB 1.0.

Before using the new library, export your existing databases using the
old mdb_dump utility and re-import them with the new mdb_load:

  # mdb_dump -a /path/to/db > /tmp/mydb.dump
  # mdb_load -f /tmp/mydb.dump /path/to/newdb

There is no support in LMDB 1.0 for operating directly on v0.9 DB files.
EOM
}
]