# MGCAMB with massive neutrinos and dynamical dark energy

## TL;DR

This paper introduces an upgraded version of MGCAMB, a tool for testing gravity theories with cosmological data, now compatible with latest datasets and including massive neutrinos and dynamical dark energy.

## Contribution

The paper presents a major upgrade to MGCAMB, integrating massive neutrinos and dynamical dark energy, and improving code flexibility for cosmological tests.

## Key findings

- Consistent constraints with the ΛCDM model from recent observations.
- Enhanced code compatibility with latest CosmoMC and datasets.
- Successful implementation of massive neutrinos and dynamical dark energy.

## Abstract

We present a major upgrade of MGCAMB, a patch for the Einstein-Boltzmann solver CAMB used for phenomenological tests of general relativity against cosmological datasets. This new version is compatible with the latest CosmoMC code and includes a consistent implementation of massive neutrinos and dynamical dark energy. The code has been restructured to make it easier to modify to fit the custom needs of specific users. To illustrate the capabilities of the code, we present joint constraints on the modified growth, massive neutrinos and the dark energy equation of state from the latest cosmological observations, including the recent galaxy counts and weak lensing measurements from the Dark Energy Survey, and find a good consistency with the {\Lambda}CDM model.