Thank you for using Yaraku Translate. This release adds a new audit log feature, extends the access log retention period, and updates our generative AI engines. See below for details.
Release date: Wednesday, November 25, 2026
There will be no downtime for this release.
1. New feature: Audit logs
We will add a new audit log feature that records specific operations. This feature is available only on the Enterprise plan.
- Logged operations: Creation, updates and deletion related to user accounts, company settings, company users and documents (view operations are not logged)
- Logged fields: Date and time, user (email address), action type, target URL, and values before and after the change
- Retention period: 3 months by default
- Retrieval: Via the REST API in JSON format (viewing logs in the web interface is not supported)
As setup is required, please contact our support team to start using it.
2. Extended access log retention period
Access logs record who accessed Yaraku Translate and when. Their retention period will be extended from 6 months to 1 year, and up to 1 year of logs will be kept going forward. Note that only Enterprise plan customers can view up to 1 year of logs.
3. Generative AI engine updates
The available generative AI engines will be updated as follows.
- Gemini 3 Flash → Gemini 3.8 Flash
- GPT 5.6 Luna → GPT 6 Luna
- GPT 5.6 Terra → GPT 6.1 Terra
- Claude Sonnet 4.5 → Claude Haiku 5.5
Key changes for Claude
- Character limit per translation: 70,000 → 150,000 characters
- Processing region: US → Japan (your data will be processed in Japan)
- These changes are made possible by switching to Claude Haiku 5.5, a lightweight and fast model.
Quality and security
- Translation quality: Our internal testing has confirmed that each new engine provides sufficient translation quality to replace the previous version.
- Security: There are no changes to our data handling or security policies as a result of these engine updates.
We will continue to improve Yaraku Translate to make it even more useful for you. If you have any questions, please feel free to contact our support team (support@yaraku.com).