This release version is focussed on consistency between the MAgPIE setup and the REMIND model and result of a validation exercise of the coupled (REMIND 2.1)-(MAgPIE 4.2) system. added config Added new socioeconomic scenario (SDP) to scenario_config.csv (which include all switches to define among others the SSP scenarios). For the parametrization of the new SDP (Sustainable Development Pathway) scenario, the list of scenario switches was extended to account for a broad range of sustainability dimensions. 10_land added new land realization landmatrix_dec18 to directly track land transition between land use types 15_food stronger ruminant fade out in India 15_food Added exogenous food substitution scenarios that can be selected via settings in the config-file, defining speed of convergence, scenario targets and transition periods (applied after the food demand model is executed). Among these scenarios are the substitution of livestock products with plant-based food commodities and the substitution of beef or fish with poultry. The food substitution scenarios are based on the model-native, regression-based calculation of food intake and demand. 15_food Added exogenous EAT Lancet diet scenarios: It is now possible to define in the config-file exogenous diet scenarios that replace the regression-based calculation of food intake and demand. Possible settings are the target for total calorie intake (e.g. according to a healthy BMI) and variants of the EAT Lancet diet (e.g. in addition to the flexitarian a vegetarian or vegan variant). 15_food Added exogenous food waste scenarios which can be defined via settings in the config-file, including scenario targets for the ratio between food demand and intake and the year in which full transition to the target should be achieved. 30_crop added crop specific land use initialization pattern (used as interface for other modules) 50_nr_soil_budget and 55_awms Additional inputs for the GoodPractice Scenario. 52_carbon Added new forest growth curve parameters based on Braakhekke et al. 2019. Growth curves are now differentiated between natural vegetation (default) and plantations. 59_som added new realization static_jan19 (new default) including all soil carbon related calculations. Before all carbon pools were updated in the specific land use type modules. This still holds true for the above ground pools (vegetation and litter carbon) .gitattributes file added to set line ending handling to auto for all text files scaling added scaling.gms files for several modules to improve optimization (based on gdx::calc_scaling) scripts added output scripts for global soil carbon maps (SoilMaps.R). changed config new default ghg emission pricing policy "redd+_nosoil" in c56_emis_policy. Includes all pools included in the previous default "SSP_nosoil", and in addition "forestry". 13_tau lower bound for vm_tau for historical time steps 50_nr_soil_budget atmospheric deposition is now estimated on the cluster-level instead of the region level to improve spatial patterns. 56_ghg_policy updated scenarios in f56_emis_policy: none, all natural (called 'ssp') and all land use change emissions (pure co2) being included in greenhouse gas pricing. ssp and all also featuring additional scenarios excluding soil carbon pricing (marked with '_nosoil' postscript). 56_ghg_policy Several changes regarding afforestation: use of detailed formula for incentive calculation instead of simplified Hotelling formula, 50 year planning horizon (instead of 80 years), phase-in of GHG prices deactivated by default (now done in REMIND), CO2 price reduction factor deactivated by default, introduced buffer reduction factor of 20% for afforestation. 59_som updated cellpool_aug16 realization to use new interfaces from land module on land use type specific land expansion and reduction as well as crop type specific land initialization pattern. Additionally added irrigation as stock change factor sub-type. N fertilizer from soil organic matter decomposition is truncated after threshold to avoid unrealistically high fertilization rates. 80_optimization write extended run information in list file in the case that the final solution is infeasible modules modular structure updated from version 1 to version 2 line endings changed to unix-style for all text files fixed modules Fixing of all parameters to SSP2 values until 2020 (switch sm_fix_SSP2) for having identical outcomes in all scenarios (SDP, SSP1-5) until 2020. 21_trade Bugfix kall instead of k in exo realization; Bufix begr/betr trade in default realization; Bugfix sets in free realization 32_forestry NPI/NDC afforestation targets are now counted towards the global afforestation limit, which can be set for specific scenarios via the switch s32maxaff_area and constrains the potential for carbon-price induced endogenous afforestation. 56_ghg_policy bugfix full soil carbon loss in default setting, renamed it from ssp to ssp_nosoil, indicating, that soil carbon losses are not priced. 56_ghg_policy bugfix afforestation: vmbtm_cell was a free variable for some sources and pollutants, which could result in GHG cost neutral shifting of age classes to ac0 (e.g. from ac55 to ac0). 80_optimization added fallback routine for CONOPT4 failure (fatal system error)