docs: release notes 80 (#8700)

* Create 0.80.md

* update with features

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Co-authored-by: Alexander Thor <alec.karlsson@gmail.com>

Author: royendo

docs/blog/0.80.md

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+---
+date: 2026-01-28
+image: https://github.com/rilldata/rill/assets/5587788/b30486f6-002a-445d-8a1b-955b6ec0066d
+description: Rill is the world's first AI-native business intelligence tool. Trusted by thousands of developers and analysts around the globe, Rill accelerates the creation of dashboards and data applications using BI-as-code.
+---
+
+# Rill 0.80 - AI Developer Agent, Alternate Time Dimensions and Dark Mode 
+
+:::note
+⚡ **Rill Developer** lets you transform datasets with SQL and build fast, exploratory dashboards. **Rill Cloud** enables collaboration at scale.
+
+👉 [Install Rill Developer](/developers/get-started/install) • [Join our Discord](https://discord.gg/2ubRfjC7Rh) • [Deploy to Rill Cloud](/developers/deploy/deploy-dashboard)
+:::
+
+![release-0 80](<https://cdn.rilldata.com/docs/release-notes/release-080.gif>)
+
+## AI Developer Agent in Beta
+
+We are proud to introduce the AI Developer Agent into Rill Developer. The AI agent is your developer assistant, helping you model data, create and edit Rill project files, and build Rill projects. Give it a try and let us know your experiences! We are continually evolving the feature, so expect more great things to come!
+
+## Alternate Time Dimension Selection
+
+You can now select an alternative time dimension directly in Explore dashboards! Switch between different timestamps (e.g., `created_at` vs `updated_at`) without modifying your metrics view definition. The time dimension picker is available in the time range dropdown, and all time-dependent queries automatically update to use your selected dimension.
+
+## Dark Mode
+
+We are now introducing dark mode to the entire product! Switch between light and dark mode from your profile, upload a dark mode variant of your logo and use custom themes prepared for dark mode! Oh, if you are embedding Rill you also have the ability to toggle dark mode as part of the Embed API.
+
+With the introduction of dark mode some theme properties have changed, your existing themes are backwards compatible but we do recommend you start using the new property names going forward. You can find those by creating a new theme and the default file will have all the new property names populated for you.
+
+
+## Bug Fixes and Improvements
+
+### Pivot Tables
+- Added "Show more" row for outermost dimension when row limit is applied
+- Updated comparison suffix formatting
+- Fixed comparison period date transformation
+
+### Filters and Search
+- Fixed dimension filter contains mode
+- Fixed contains filter not supporting dimension comparison
+
+### AI Chat
+- Fixed auto scroll not working for final assistant messages
+- Added toggle for AI panel visibility in embeds
+- Improved canvas conversational dev agent
+
+### Canvas
+- Fixed annotation placement
+- Improved bookmarks modal for canvas display
+
+### Deployment
+- Added Git APIs to runtime for dev deployments
+- Fixed deploy not leading to home page
+- Made GitHub webhooks trigger parser for deployments in `updating` state
+
+### Data Sources
+- Fixed StarRocks driver data type handling (DECIMAL precision, VARCHAR encoding)
+- Ignore schema for ClickHouse, Druid, and Pinot connectors
+- Fixed regression on GCS as model manager
+- Fixed handling of comments in `SELECT *` statements
+- Fixed DuckDB range queries with timezone
+- Increased time range bins for spine select to 1500
+- Better error messages for time spine failures
+
+### UI/UX
+- Fixed dropdown alignment in User Management table
+- Fixed share button popover not closing on second click
+- Added tooltip for copying values in leaderboard
+- Fixed TIME_GRAIN lookups for second/millisecond/unspecified grains
+- Fixed limit grain options in visual metrics
+- Hidden AI toggle on public URL dashboards
+