# 0.5.1 (2020-07-31)
### Features / Enhancement
- **Added error message details**
- **Added Golang programming language support**
- **Added web driver installation scripts for Chrome Driver and Firefox**
- **Support system tasks** - Similar to spider tasks, allows viewing logs for system operations like language installations
- **Changed methods of installing languages from RPC to system tasks**

### Bug Fixes
- Fixed first download repo 500 error in Spider Market page [#808](https://github.com/crawlab-team/crawlab/issues/808)
- Fixed translation issues
- Fixed 500 error in task detail page [#810](https://github.com/crawlab-team/crawlab/issues/810)
- Fixed password reset issue [#811](https://github.com/crawlab-team/crawlab/issues/811)
- Fixed CSV download issue [#812](https://github.com/crawlab-team/crawlab/issues/812)
- Fixed Node.js installation issue [#813](https://github.com/crawlab-team/crawlab/issues/813)
- Fixed disabled status for batch schedule additions [#814](https://github.com/crawlab-team/crawlab/issues/814)

# 0.5.0 (2020-07-19)
### Features / Enhancement
- **Spider Market** - Download open-source spiders
- **Batch operations** - Run/delete tasks and spiders in bulk
- **MongoDB driver migration** to `MongoDriver`
- Refactored node management logic
- Increased default `task.workers` to 16
- Set nginx `client_max_body_size` to 200m
- **ElasticSearch logging** support
- Display detailed error messages in Scrapy UI
- Removed Challenge page
- Moved Feedback/Disclaimer to navbar

### Bug Fixes
- Fixed log expiration TTL index issue
- Set default log retention to 1 day
- Added missing `task_id` index
- Fixed docker-compose configuration
- Fixed 404 page handling
- Fixed worker node creation sequence issue