(userdocs:neuromlv1)=
# NeuroML v1

```{warning}
NeuroML v1.x is deprecated. This page is maintained for archival purposes only.

Please use {ref}`NeuroML v2 <userdocs:neuromlv2>`.

{ref}`neuroConstruct <userdocs:supporting:apps:neuroconstruct>` can be used for converting NeuroML v1 models into NeuroML v2.
```

There are three Levels of compliance to the NeuroML v1 specifications:

## Level 1

- [Metadata v1.8.1](https://github.com/NeuroML/org.neuroml1.model/blob/master/src/main/resources/NeuroML1Schemas/Level1/Metadata_v1.8.1.xsd)
- [MorphML v1.8.1](https://github.com/NeuroML/org.neuroml1.model/blob/master/src/main/resources/NeuroML1Schemas/Level1/MorphML_v1.8.1.xsd)

Any Level 1 NeuroML v1 file will also be compliant to [this schema](https://github.com/NeuroML/org.neuroml1.model/blob/master/src/main/resources/NeuroML1Schemas/Level1/NeuroML_Level1_v1.8.1.xsd).

## Level 2

- [Biophysics v1.8.1](https://github.com/NeuroML/org.neuroml1.model/blob/master/src/main/resources/NeuroML1Schemas/Level2/Biophysics_v1.8.1.xsd)
- [ChannelML v1.8.1](https://github.com/NeuroML/org.neuroml1.model/blob/master/src/main/resources/NeuroML1Schemas/Level2/ChannelML_v1.8.1.xsd)

Any Level 1 or Level 2 NeuroML v1 file will also be compliant to [this schema](https://github.com/NeuroML/org.neuroml1.model/blob/master/src/main/resources/NeuroML1Schemas/Level2/NeuroML_Level2_v1.8.1.xsd).

## Level 3

- [NetworkML v1.8.1](https://github.com/NeuroML/org.neuroml1.model/blob/master/src/main/resources/NeuroML1Schemas/Level3/NetworkML_v1.8.1.xsd)

Any Level 1 or Level 2 or Level 3 NeuroML v1 file will also be compliant to [this schema](https://github.com/NeuroML/org.neuroml1.model/blob/master/src/main/resources/NeuroML1Schemas/Level3/NeuroML_Level3_v1.8.1.xsd).

These files are archived in [this GitHub repository](https://github.com/NeuroML/org.neuroml1.model/tree/master/src/main/resources/NeuroML1Schemas).