> ## Documentation Index
> Fetch the complete documentation index at: https://docs.flex.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Changelog: 2025-03-10

## Changed

* **No Dataset Size Limitation**: Training jobs can now process datasets of any size. Previously, FCS recommended that datasets be limited to 150GB for Training Jobs.
* **Faster Training Job start times**: Dataset management optimizations have reduced the overall starting time of Training Jobs, by speeding up the time to load a dataset.Previously, Training Job start  times could be much longer depending on the size of the dataset.
* **Read-Only /input/ Directory**: The `/input/` directory ─ where Datasets are mounted ─ is now set as read-only, improving clarity on its intended usage. You can continue to use the `/output/` directory to save artifacts and results as well as any data processing operations you need to perform during training.
* **Faster Training Fetch Availability**: The `training fetch <name>` command is now available 35% sooner after a Training Job completes due to an optimized save process.
* UX improvement for `training fetch` to display a smoother data download progress.