Fuxi changelog: what's new each month
Every stable Fuxi release summarised by month: the highlights, new features, improvements, fixes and anything you need to act on. 2 months covered; the current month updates daily.
September 2026
2 releases: 0.1.6 → 0.1.8
September brought significant stability and performance improvements to Fuxi, with unified message handling, hardened authentication, and major rendering optimizations that dramatically reduce lag and load times.
Highlights
- Message handling consolidated into a single model to eliminate inconsistencies and preserve conversation chains.
- Long sessions now load 10x faster with optimized storage and rendering, reducing cold first frame from 1.6s to 160ms.
- Login flow hardened with serialized token refresh to prevent forced re-login and session interruptions.
- Streaming render performance improved 96x for large content by fixing linkify algorithm.
- Plugin marketplace now served from official mirror for more stable and reliable installs.
New
- Model selection validation that checks if chosen model is supported by current endpoint.
- Rate-limit banners unified with subscription data, showing usage and overages clearly.
- Permission dialog now uses numbered Select list with "Always Allow" showing exact persisted rules.
- Official GCS mirror for plugin marketplace.
- Fast-path read for sessions larger than 5MiB using 1MB sequential chunks.
- Notification queue with priority levels: immediate, later, and next.
Improved
- Empty responses automatically retry via non-streaming requests.
- Proactive token refresh before expiry prevents forced re-login.
- CJK character-width handling in markdown rendering.
- Bash and Windows command-line parsing unified to reduce misclassification.
- Session resume now reads transcript only once, reducing time from 4.6s to 0.8s on 34MB files.
- Scrolling performance improved through estimated scroll offsets and eliminated filesystem syscalls.
- Message parentUuid chains now fully link all participants with automatic re-linking after forks.
- Low-risk file commands (mkdir/cp/mv/touch/rmdir) now relaxed in permission rules.
Fixed
- Repeated injection of external file changes and conditional memory in engine.
- Chat lag on huge content; streaming output no longer appears non-streaming.
- Linkify O(n²) full-render issue causing 278ms delays on 20KB single lines.
- Nested-heredoc crash on Bash.
- Garbled text from subprocess output on Windows with strict UTF-8 handling.
- Grep content checks and UNC path handling.
August 2026
2 releases: 0.1.1 → 0.1.2
August brought significant expansions to Fuxi's remote control capabilities and multi-session coordination, along with smarter image and vision handling across different model types.
Highlights
- Remote Control now supports CCR v2 sessions with secure credential exchange and real-time event streaming synchronized with the local interface.
- Multi-window coordination lets you switch between concurrent sessions without interrupting your current work.
- Image captioning is now automatic for non-vision models, with vision capabilities automatically detected from your provider.
- Built-in file search tools (bfs/ugrep) available on all platforms with no extra dependencies.
- Unified MCP plugin lifecycle ensures all plugins load under one consistent contract regardless of their source.
New
- Remote Control support for CCR v2 sessions with secure worker credential exchange.
- Multi-window coordination for seamless switching between concurrent sessions.
- Automatic image captioning for non-vision models.
- Built-in file search tools (bfs/ugrep) for Windows, macOS, and Linux.
- Chrome integration dialog enabled by default.
- Voice capture and browser tools integrated through native extension bridge.
- Exit-word routing and automatic detection of long-running task keywords.
- Thinking mode that adapts to task type.
Improved
- Image preprocessing now includes automatic resizing and compression using Lanczos3 scaling kernel.
- Remote input unified with local sessions under consistent security policies.
- Vision capability automatically detected from known provider capabilities.
- Bash cards expanded by default.
- @mention content delivered directly to the model.
- Tool-level thinking refined for better performance.
- Status blink for collapsed groups in the TUI restored.
- Multiple security hardening improvements including scoped OAuth credentials and plugin secrets kept out of prompts.
Fixed
- Status blink indicator for collapsed groups in the TUI now displays correctly.
- Plugin reloads no longer expose sensitive information.
- Plaintext MCP tokens removed from configuration.
- Plugin secrets protection improved to prevent accidental exposure in prompts.
Summaries are written automatically from the official release notes (full changelog ↗); check the original notes before relying on a detail. Fuxi: pricing, features and alternatives · All changelogs