[NA] [DOCS] Add changelog for January 13, 2026 (#4729)

* [NA] [DOCS] Add changelog for January 13, 2026 (releases 1.9.57-1.9.78)

* Optimised images with calibre/image-actions

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: juanferrub

apps/opik-documentation/documentation/fern/docs/changelog/2026-01-13.mdx

@@ -0,0 +1,67 @@
+Here are the most relevant improvements we've made since the last release:
+
+## 🔌 Playground & Provider Enhancements
+
+We've expanded the Playground with new provider support and enhanced functionality to make prompt experimentation more powerful.
+
+**What's new:**
+
+- **Display Metric Results in Output** - Playground output cells now display metric results directly, making it easier to evaluate prompt performance at a glance
+
+<Frame>
+  <img src="/img/changelog/2026-01-13/Playground-metric-results.png" alt="Playground output showing metric results directly in the output cell" />
+</Frame>
+
+- **Model Selector for OpikAI Features** - Easily select which model powers the Prompt Generator and Prompt Improver features
+
+<Frame>
+  <img src="/img/changelog/2026-01-13/OpikAI-model-selector.png" alt="Model selector dropdown for OpikAI features like Prompt Generator and Prompt Improver" />
+</Frame>
+
+- **Native AWS Bedrock Integration** - Bedrock is now available as a native provider in the Playground, giving you direct access to Amazon's models without additional configuration
+
+<Frame>
+  <img src="/img/changelog/2026-01-13/AWS_Bedrock.png" alt="AWS Bedrock integration in the Playground provider selection" />
+</Frame>
+
+- **Gemini 3 Flash Support** - Added support for Gemini 3 Flash in both the Playground and online scoring, expanding your model options for fast, cost-effective evaluations
+
+## 🧪 Online Evaluation & Scoring
+
+We've made online evaluation more flexible and easier to manage across your projects.
+
+**What's improved:**
+
+- **Multi-Project Evaluation Rules** - Online evaluation rules can now be applied across multiple projects, reducing duplication and simplifying rule management
+
+<Frame>
+  <img src="/img/changelog/2026-01-13/Multi-project-rule-support.png" alt="Multi-project support for online evaluation rules" />
+</Frame>
+
+- **Clone Score Rules** - Quickly duplicate existing online score rules to create variations without starting from scratch
+
+## 🎨 UI & UX Enhancements
+
+We've refined the user experience across the platform with improved responsiveness and dashboard polish.
+
+**What's improved:**
+
+- **Mobile Responsiveness** - Better support for mobile devices when logging traces
+- **Dashboard Enhancements** - Unified widget editor design, dashboard count in sidebar, and various UX improvements to the dashboard experience
+
+## 📦 SDK Improvements
+
+We've updated our SDKs with new capabilities and modernized dependencies.
+
+**What's new:**
+
+- **Python 3.9 End of Life** - Python 3.9 support has been retired as it reached end-of-life. Please upgrade to Python 3.10+
+- **Experiment Tags in evaluate()** - You can now add tags to experiments directly when calling the `evaluate()` method
+- **Vercel AI SDK v6** - Upgraded TypeScript SDK integration from Vercel AI SDK v5 to v6
+- **Prompt Version Tags (TypeScript)** - TypeScript SDK now supports prompt version tags for better prompt management
+
+---
+
+And much more! 👉 [See full commit log on GitHub](https://github.com/comet-ml/opik/compare/1.9.56...1.9.78)
+
+_Releases_: `1.9.57`, `1.9.58`, `1.9.59`, `1.9.60`, `1.9.61`, `1.9.62`, `1.9.63`, `1.9.64`, `1.9.65`, `1.9.66`, `1.9.67`, `1.9.68`, `1.9.69`, `1.9.70`, `1.9.71`, `1.9.72`, `1.9.73`, `1.9.74`, `1.9.75`, `1.9.76`, `1.9.77`, `1.9.78`