---
header: December 2019 Documentation Changes
lang: en
last_updated: null
url: https://docs.fastly.com/changes/2019/12/01/changes
---

### New docs

The following documents are new to the help desk support series as part of our regular documentation update efforts:

- About Fastly Image Optimizer
- [Dedicated IP addresses](https://docs.fastly.com/products/dedicated-ip-addresses)

We've also created a new Load balancing subcategory and a new Caching subcategory. All related guides have been moved to make them easier to find.

### Recently edited and reviewed docs

The following documentation was edited as part of a normal review cycle or as a result of updates to how the Fastly web interface and API operate:

- [Archives](https://docs.fastly.com/archives/)
- Glossary of terms
- Google Cloud Storage
- Log streaming: Syslog
- Reviewing service activity with the event log
- Request collapsing
- [Summary product definitions](https://docs.fastly.com/products/summary-product-definitions)
- Web Application Firewall (WAF)
- WAF Support and SLA

The following API documentation was edited as part of a normal review cycle or as a result of updates to how the Fastly API operates:

- Format
- Orientation
- [S3](https://www.fastly.com/documentation/reference/api/logging/s3/)

### New and recently updated Japanese translations

The following Japanese (日本語) translations were recently updated to reflect changes in their English counterparts:

- リクエスト共有 (Request collapsing)