Changelog

Toutes les modifications notables de Lain Agent sont documentées ici.

[v0.23.3] - 2026-03-10

Added

• Task queue — tasks can now be queued and executed in sequence; manually triggered tasks take priority over background ones.
• Email address change — you can now change the email address associated with your account directly from the settings.
• Watchdog process — a companion watchdog process now monitors Lain and restarts it automatically if it crashes.
• Automatic post-update cleanup — stale files and directories left over from previous installations are now removed automatically on the next startup, keeping the install folder tidy.

Changed

• More reliable updates — leftover versioned directories from old updates are now cleaned up correctly on startup.
• Improved CI pipeline — unit tests now run automatically on every build, with results published as test reports.

[v0.23.2] - 2026-03-09

Fixed

• Recurring tasks not running on fresh install — on a new installation, scheduled background tasks (such as memory consolidation) were never triggered. This is now resolved.

Added

• Workspace template restore — missing or modified workspace configuration files can now be automatically restored from their built-in templates.

[v0.23.1] - 2026-03-09

Fixed

• Startup shortcut not updated after self-update — after installing a new version, Lain's startup shortcut still pointed to the previous installation folder. The update process now reliably rewrites the shortcut to the correct location.
• Browser streaming speed — the live browser view now refreshes faster (~16 fps instead of ~12 fps).

[v0.23.0] - 2026-03-09

Added

• Autonomous PC control — Lain can now operate the Windows graphical interface on its own: clicks, typing, scrolling, drag-and-drop, keyboard shortcuts. It captures real screenshots to see what it's doing, with multi-monitor support.
• File upload via browser — Lain can now upload files into web forms during its navigation tasks.
• New LLM configuration system — overhauled model management: built-in catalogue, per-role configuration (planning, execution, summarisation…), automatic migration from the old format.
• Progressive tool loading — less frequently used tools are loaded on demand rather than at startup, reducing context size and improving performance.

Changed

• Improved chat interface — visualisation of plan steps during execution, display of the agent's last thought, expansion button to read the full detail of tools used.
• More robust planning — maximum step count raised to 20, instructions tightened to eliminate vague actions and placeholders.
• Better handling of user choices — the agent correctly resumes the sequence after a choice has been presented and confirmed.
• Persistent tool unlocking — tools activated manually remain available across sessions.

[v0.22.8] - 2026-03-06

Changed

• Updater now deploys each update to a versioned sub-directory (%LOCALAPPDATA%\Lain\{version}\) instead of overwriting in-place, eliminating all file-lock issues
• Startup shortcut and registry entry are updated atomically by the batch helper after each update
• Watchdog script (lain-watch.ps1) is generated in the new version directory using $PSScriptRoot for portable path resolution

[v0.22.7] - 2026-03-06

Added

• enhance update process to handle deferred file copying for locked executables

[v0.22.6] - 2026-03-06

Added

• remove PlaywrightDriverSetupService and related configurations
• remove Lain.Landing project from solution

[v0.22.5] - 2026-03-06

Added

• Pre-commit hook and Update-Changelog.ps1 script for automatic changelog updates on version bump
• PlaywrightDriverSetupService to ensure Playwright Node.js driver is present on disk at startup

Changed

• Removed outdated files (licence, landing page, sync-changelog script)
• Enhanced changelog update process with automatic entry insertion in Changelog.razor

[v0.22.4] - 2026-03-06

Fixed

• Refactor Playwright exclusion logic to ensure necessary files remain standalone during publish

[v0.22.3] - 2026-03-05

Added

• Playwright Node.js driver installation and exclusion of Playwright DLL from single-file publish

[v0.22.2] - 2026-03-05

Fixed

• Improved Chrome debugging connection error message for clarity
• Updated Chrome remote debugging hint in English and French

Changed

• Updater now copies non-executable files during extraction
• Added cache-busting versioning to CSS and JS file links

[v0.22.1] - 2026-03-05

Fixed

• Added support for forwarded proxy headers (X-Forwarded-*) for correct behavior behind a reverse proxy

[v0.22.0] - 2026-03-05

Added

• User authentication system: login, logout, password management, and authorization policy requiring authentication by default
• Browser remote control with streaming, input handling, navigation controls, tab management, and close tab functionality
• Web browsing operations including fetch, navigation, and content reading with named tab support and page caching in ChromeDevToolsService
• File rendering system for CSV and Markdown files with Workspace CSV preview and styling
• RecurringTaskSkill for managing recurring tasks (create, update, delete, trigger)
• Human-readable task descriptions in schedule directory; localized day names in task frequency display
• New personas and context options on Home page for enhanced user experience
• GetActivityLabel method across skills for improved UI activity display

Changed

• Blue-noise dither map loading replaced with inline generation for improved performance

Fixed

• LASTEXITCODE initialized before .NET installation in installer to correctly capture exit status
• Non-ASCII en dashes removed from licence files (encoding fix)

[v0.21.0] - 2026-03-03

Added

• Clipboard paste support for image uploads in chat
• End User License Agreement (EULA) and installation consent prompts
• Chat input setup and clear helper functions for improved UX

Fixed

• French skill descriptions improved for clarity and detail across multiple skills
• Refactored skill descriptions for consistency
• Enhanced guidance on selector usage and error handling in WebBrowseClickSkill

[v0.20.2] - 2026-03-03

Fixed

• Update link styles in markdown body for improved visibility and interaction
• Enhance directory loading logic to handle direct file paths
• Improve documentation for web_browse selectors and clarify usage instructions

[v0.20.1] - 2026-03-02

Fixed

• Update Playwright package to version 1.58.0 and improve error handling

[v0.20.0] - 2026-03-02

Added

• Automatic Playwright driver installation on first use: if node.exe is missing, playwright install chromium runs in-process and retries automatically
• Enhanced error message when Chrome is not reachable via CDP (includes actionable --remote-debugging-port=9222 instructions)

Fixed

• web_browse_fetch auto-mode no longer crashes when Chrome is unavailable: returns HTTP result with a note instead of propagating the exception
• LLM no longer enters a diagnostic loop trying to verify node.exe presence via file skills when Playwright driver is missing

[v0.19.0] - 2026-03-02

Added

• Dedicated uninstall.ps1 bundled inside the release zip and registered in Windows Apps & Features
• Countdown timers between risk warnings in installer for better readability
• Goodbye message when user declines installation consent
• Watchdog-aware self-update: update batch script no longer restarts lain directly when watchdog is present

Fixed

• Installer consent prompt now works correctly when piped via irm | iex (uses [Console]::ReadLine())
• lain.exe no longer shows a console window after installation (launched via Start-Process -WindowStyle Hidden)
• Encoding issue with em dashes in installer output on non-UTF-8 consoles
• install.ps1 path corrected in Azure Pipelines release pipeline

[v0.18.0] - 2026-03-02

Added

• Animated halo effects to hero section for enhanced visual appeal
• One-line installer script for LainBot
• .NET runtime installation check and download functionality in installer

Changed

• Renamed project from LainBot to Lain
• Installation script URL updated; security warnings with consent prompt added
• Configuration file renamed from lain.json to config.json; new config template added
• Deployment script: updated local directory path

Fixed

• Border syntax and layout consistency improvements in CSS styles

[v0.17.0] - 2026-03-02

Added

• Voice interaction features with text-to-speech and speech recognition in chat
• Installation guide and configuration instructions (INSTALL.md)
• Markdown processing for user messages with line break handling

Changed

• Git skill: enhanced repository path handling to support relative paths

[v0.16.0] - 2026-03-01

Added

• GitSkill to perform various git operations on local repositories
• GetCurrentTimeSkill to return current date and time in multiple formats
• Web browsing skills for navigation, interaction, and content retrieval with markdown support
• Filesystem replace and multi-replace skills for targeted string modifications in files
• File manipulation skills with content hash validation and unit tests
• File editing guidelines to improve reliability of file operations
• Thinking bubble and skill activity styles to enhance chat interface
• Logging to various skills for improved traceability and debugging
• Random pulsation effect for thinking aura orbs in chat interface
• Episodic memory logging with skill invocation tracking
• Enhanced web interaction with auto_read and max_length parameters, improved clickable item detection

Changed

• Scheduler: prompt handling updated with display time, file hint, and content validation
• PowerShellSkill description updated to emphasize filesystem skills
• File manipulation skills renamed for consistency and clarity
• Bootstrap onboarding streamlined by removing optional connection section
• Chat skill calls retrieval simplified for improved readability

Fixed

• Scheduler: inline prompt migration removed; heartbeat task creation writes prompt content to file
• Session un-archived when new messages are added to restore activity
• Episodic memory output truncation removed for complete data capture
• Navigation wait strategy updated to page load event for improved reliability
• GetCurrentTimeSkill uses SkillResult.Ok for consistency

[v0.15.0] - 2026-03-01

Added

• Browser automation guidelines in Executor with DOM exploration rules and page load instructions
• BOOTSTRAP.md injection in Executor when present; warnings for missing core identity/config files
• TOOLS.md injected in context files for dynamic skill catalogue
• Browser automation guidelines in AGENTS.md; WebBrowseSkill enhanced with inspect functionality and force click option
• GetAllPages method in ChromeDevToolsService; WebBrowseSkill status reporting for open tabs

Changed

• Tool usage rules and retry instructions clarified in Executor

[v0.14.0] - 2026-02-28

Added

• Home page feature cards with bullet points and multilingual labels (fr/en)

[v0.13.0] - 2026-02-28

Added

• Session-based tracing in Executor and AgentTraceService for improved event management
• Per-session state management in Executor with updated related interfaces

Changed

• Stateless retry logic for 400 Bad Request errors in Executor; improved error handling in OpenAiLlmClient
• Fallback history maintained in ExecuteAsync for improved context retention
• Session eviction behavior clarified in Executor; conversation reset added in SchedulerService for fresh task runs
• Home page layout and styling enhanced; dynamic hooks added; drag-and-drop functionality improved

[v0.12.0] - 2026-02-28

Added

• Workspace page with file explorer, Markdown preview, and inline editing
• Toast UI Editor integration with dark theme for rich Markdown editing in Workspace
• AnalyzeImageSkill for image analysis using vision LLM
• Multimodal support: image handling in chat, drag-and-drop file zone, and planning pipeline
• Thinking aura effect with animated orbs and fractal noise background during processing
• Countdown display for scheduled tasks with auto-refresh timer
• Agent configuration options for multi-step planning in Configuration page

Changed

• Image drop zone refactored with multilingual overlay text and improved UX
• Thinking aura refined: improved opacity, blur, color parameters, and persistent background overlay

[v0.11.0] - 2026-02-27

Added

• Localization support for skills and UI (English files for Chat, Config, Home, Memory, Schedule, Shared, Skills)
• File-based prompt support for scheduled tasks with file normalization and content handling
• Context seeding for executor and reply functionality in Chat UI
• Running task indication in SchedulerService and Schedule UI
• Session management with archiving and response ID handling in Executor and SessionStore

Changed

• Home page redesigned: grid layout, use-case descriptions, bullet-point feature cards
• Skills page enhanced with language-specific descriptions and improved cron expression validation
• Prompt loading in SchedulerService now includes workspace file context
• Prevent SDK from appending git commit hash to AssemblyInformationalVersion (reduces version churn during hot reload)
• App.css updated with new color variables, enhanced styles, and improved layout

[v0.10.0] - 2026-02-26

Added

• User interaction service and choice prompt for enhanced decision-making in chat
• Playwright browser service and web fetch skill for enhanced web content extraction
• Chrome DevTools service replacing Playwright for web interaction

Changed

• Enhanced system prompt and tool usage guidelines in Executor
• Enhanced user choice interaction guidelines in Executor and AskUserChoiceSkill
• Improved response style guidelines for Executor and Planner (concise and direct answers)

Fixed

• Clarify commit message requirement in workspace guidelines

[v0.9.0] - 2026-02-26

Added

• Soft failure handling in skill results and related skill updates

[v0.8.0] - 2026-02-26

Changed

• Suppress silent heartbeat acknowledgements in SchedulerService
• Remove long-term memory dependency and update related comments in Executor
• Enhance task scheduling and file naming in episodic memory to prevent overwrites

[v0.7.0] - 2026-02-26

Added

• Default heartbeat task for agent
• Workspace documentation for scheduled tasks
• Memory documentation: episodic memory usage, file structure, automatic conversation logging
• Improved memory context loading instructions
• Structured long-term memory entries
• TimeoutSeconds configuration for Ollama and OpenAi
• Replanning logic in Executor and IPlanner
• StepOutcome model for step execution results
• MaxSteps configuration in PlannerOptions
• Deactivated property to ISkill interface
• Dynamic Git-based versioning

Changed

• Enhanced memory management (episodic logging, documentation)
• Enhanced Skills page to display status
• Modified lain.json to include Agent settings
• Updated Program to utilize timeout settings

Other

• Ajout de changelog

[v0.6.0]

Added

• Update SOUL and WORKSPACE templates
• Modify default models in Lain

Changed

• Bump version to 0.6.0 in project file

[v0.5.0]

Added

• Enhance executor to support session names for improved context tracking
• Migrate memory storage from JSON to markdown files and update directory structure

Changed

• Update NCrontab package version to 3.4.0

[v0.4.0]

Changed

• Bump version to v0.4.0

[v0.3.0]

Added

• Add UTF-8 output support and implement download progress for Lain installer
• Enhance development workflow with hot reload support and update Azure VM skill description
• Add launch and tasks configuration for Lain in VSCode
• Auto-discover and register all ISkill implementations via assembly

Changed

• Bump version to v0.3.0

[v0.2.0]

Added

• Register Lain as a Windows Service and update project dependencies
• Add Azure VM creation skill with Bastion configuration and automatic Lain installation

Changed

• Bump version to v0.2.0

[v0.1.0]

Added

• Initial project scaffold: solution, all projects, Core interfaces, ReAct+Plan-and-Execute agent loop, LLM clients, Memory, Connectors, Skills, Host
• Add Blazor web UI and CLI interface (lain run / lain status)
• Enhance dashboard with uptime, LLM info, and memory count
• Implement secrets management and configuration updates
• Add Ollama installation checks and UI components for status and testing
• Enhance chat functionality with Markdown support and auto-scroll feature
• Update chat bubble styles and enhance Markdown rendering in chat messages
• Implement self-update mechanism with Azure Blob Storage integration
• Update AgentUpdater configuration with BlobBaseUrl for release management
• Implement DeleteFileSkill to remove files from the workspace
• Add workspace file restoration feature and UI for managing template files
• Remove leading slash from API endpoint paths in LLM clients
• Implement PowerShellSkill to execute PowerShell commands and return output
• Add workspace template restoration feature and implement agent tracing
• Enhance conversation management with stateful LLM support and new UI options
• Clarify workspace directory description in Executor class
• Implement scheduling system for automated task management
• Add workspace structure documentation and enhance PowerShell skill command handling
• Implement session management for chat interactions and scheduled tasks
• Rename VERSION variable to LAIN_VERSION in Azure Pipelines configuration
• Create blob container before upload if not exists
• Remove tracked build artifacts (bin/, obj/) now covered by .gitignore