Windsurf

v1.9600.40 April 7, 2026 Adaptive Model Visibility We’ve improved the visibility of the adaptive model in the model picker. Download 1.9600.40 v1.9600.38 April 6, 2026 Introducing Adaptive We’ve made several model packaging changes, with more info here . Adaptive Model Router A new Adaptive model option is now available in the model picker. Adaptive intelligently selects the best model for each task, helping you make your quota last longer by avoiding overuse of premium models. Availability : Now available to all self-serve users on Pro, Max, and Teams plans. Dynamic model selection - Automatically chooses the right underlying model for your task while drawing down quota at a fixed per-token rate. Extra usage promo - Beyond your quota, extra usage is offered at 0.50 USD per 1M input tokens, 2.00 USD per 1M output tokens, and 0.10 USD per 1M cache read tokens for the next 2 weeks. Updated Model Picker with Pricing Context The model picker now shows token pricing information directly, so you can see the exact rate extra usage is billed at. Token pricing display - Per-model input, output, and cache read token rates visible in the picker. Prompt cache timer - A new prompt cache timer

v1.9600.38 April 6, 2026 Introducing Adaptive We’ve made several model packaging changes, with more info here . Adaptive Model Router A new Adaptive model option is now available in the model picker. Adaptive intelligently selects the best model for each task, helping you make your quota last longer by avoiding overuse of premium models. Availability : Now available to all self-serve users on Pro, Max, and Teams plans. Dynamic model selection - Automatically chooses the right underlying model for your task while drawing down quota at a fixed per-token rate. Extra usage promo - Beyond your quota, extra usage is offered at 0.50 USD per 1M input tokens, 2.00 USD per 1M output tokens, and 0.10 USD per 1M cache read tokens for the next 2 weeks. Updated Model Picker with Pricing Context The model picker now shows token pricing information directly, so you can see the exact rate extra usage is billed at. Token pricing display - Per-model input, output, and cache read token rates visible in the picker. Prompt cache timer - A new prompt cache timer is integrated into the context window indicator to help you track caching status. Token counts in response cards - Response cards after

v1.9577.43 March 19, 2026 Quota Billing Added support for the new quota billing system Daily and Weekly quota usage is now displayed directly in the IDE Bug Fixes and Improvements Fix build for Mac x64 Download 1.9577.43 v1.9577.42 March 19, 2026 Bug Fixes and Improvements Various bug fixes and performance improvements Download 1.9577.42 v1.9577.27 March 12, 2026 Bug Fixes and Improvements Fix for Apple M5 Download 1.9577.27 v1.9577.24 March 9, 2026 Cascade Fix dangling Diff Zones related to Jupyter Notebooks Improve Jupyter Notebook performance when running on WSL Improve Cascade UI rendering performance Fix Cascade agent panel crashes under certain conditions Improve notifications for model price changes Add support for loading SKILL.md files from the .windsurf/skills/ directory Fix AGENTS.md being ignored by Cascade in specific cases MCP Add support for system-level Skill definitions via MDM-managed configs for Enterprise Improve context management for MCP servers Stability & Performance Improve autocomplete error handling and performance Improve SSH & Remote performance Download 1.9577.24 v1.9566.11 February 26, 2026 Bug Fixes and Improvements Fix extension installation

v1.9577.42 March 19, 2026 Bug Fixes and Improvements Various bug fixes and performance improvements Download 1.9577.42 v1.9577.27 March 12, 2026 Bug Fixes and Improvements Fix for Apple M5 Download 1.9577.27 v1.9577.24 March 9, 2026 Cascade Fix dangling Diff Zones related to Jupyter Notebooks Improve Jupyter Notebook performance when running on WSL Improve Cascade UI rendering performance Fix Cascade agent panel crashes under certain conditions Improve notifications for model price changes Add support for loading SKILL.md files from the .windsurf/skills/ directory Fix AGENTS.md being ignored by Cascade in specific cases MCP Add support for system-level Skill definitions via MDM-managed configs for Enterprise Improve context management for MCP servers Stability & Performance Improve autocomplete error handling and performance Improve SSH & Remote performance Download 1.9577.24 v1.9566.11 February 26, 2026 Bug Fixes and Improvements Fix extension installation version selection Download 1.9566.11 v1.9566.9 February 25, 2026 New Model Picker We introduced a new model picker that groups models by family and adds a hovercard with toggles for specific variants, like reasoning effort and

v1.9577.27 March 12, 2026 Bug Fixes and Improvements Fix for Apple M5 Download 1.9577.27 v1.9577.24 March 9, 2026 Cascade Fix dangling Diff Zones related to Jupyter Notebooks Improve Jupyter Notebook performance when running on WSL Improve Cascade UI rendering performance Fix Cascade agent panel crashes under certain conditions Improve notifications for model price changes Add support for loading SKILL.md files from the .windsurf/skills/ directory Fix AGENTS.md being ignored by Cascade in specific cases MCP Add support for system-level Skill definitions via MDM-managed configs for Enterprise Improve context management for MCP servers Stability & Performance Improve autocomplete error handling and performance Improve SSH & Remote performance Download 1.9577.24 v1.9566.11 February 26, 2026 Bug Fixes and Improvements Fix extension installation version selection Download 1.9566.11 v1.9566.9 February 25, 2026 New Model Picker We introduced a new model picker that groups models by family and adds a hovercard with toggles for specific variants, like reasoning effort and speed. Separately, we also added the ability to pin models. Cascade Improvements Added

v1.9577.24 March 9, 2026 Cascade Fix dangling Diff Zones related to Jupyter Notebooks Improve Jupyter Notebook performance when running on WSL Improve Cascade UI rendering performance Fix Cascade agent panel crashes under certain conditions Improve notifications for model price changes Add support for loading SKILL.md files from the .windsurf/skills/ directory Fix AGENTS.md being ignored by Cascade in specific cases MCP Add support for system-level Skill definitions via MDM-managed configs for Enterprise Improve context management for MCP servers Stability & Performance Improve autocomplete error handling and performance Improve SSH & Remote performance Download 1.9577.24 v1.9566.11 February 26, 2026 Bug Fixes and Improvements Fix extension installation version selection Download 1.9566.11 v1.9566.9 February 25, 2026 New Model Picker We introduced a new model picker that groups models by family and adds a hovercard with toggles for specific variants, like reasoning effort and speed. Separately, we also added the ability to pin models. Cascade Improvements Added POST_CASCADE_RESPONSE_WITH_TRANSCRIPT cascade hook Added Cascade hooks configuration visibility on team settings page

v1.9566.11 February 26, 2026 Bug Fixes and Improvements Fix extension installation version selection Download 1.9566.11 v1.9566.9 February 25, 2026 New Model Picker We introduced a new model picker that groups models by family and adds a hovercard with toggles for specific variants, like reasoning effort and speed. Separately, we also added the ability to pin models. Cascade Improvements Added POST_CASCADE_RESPONSE_WITH_TRANSCRIPT cascade hook Added Cascade hooks configuration visibility on team settings page Reduced the priority of Git commits in @ mention search Added a devin.cascade.readClaudeCodeConfig flag to disable reading Claude configuration MCP Improvements Added an MCP Refresh button Auto-trigger OAuth login when adding HTTP/SSE MCP servers Fix bugs with parsing on Windows and startup Platform Improvements Merged changes from VS Code 1.108 Improved startup reliability for Cascade Fixed Windows update initialization path that could block updates Released binaries for Linux ARM64 Download 1.9566.9 v1.9552.25 February 21, 2026 Bug Fixes and Improvements Fix compatibility with GitHub Pull Requests extension Download 1.9552.25 v1.9552.24 February 17, 2026 Bug Fixes and

v1.9566.9 February 25, 2026 New Model Picker We introduced a new model picker that groups models by family and adds a hovercard with toggles for specific variants, like reasoning effort and speed. Separately, we also added the ability to pin models. Cascade Improvements Added POST_CASCADE_RESPONSE_WITH_TRANSCRIPT cascade hook Added Cascade hooks configuration visibility on team settings page Reduced the priority of Git commits in @ mention search Added a devin.cascade.readClaudeCodeConfig flag to disable reading Claude configuration MCP Improvements Added an MCP Refresh button Auto-trigger OAuth login when adding HTTP/SSE MCP servers Fix bugs with parsing on Windows and startup Platform Improvements Merged changes from VS Code 1.108 Improved startup reliability for Cascade Fixed Windows update initialization path that could block updates Released binaries for Linux ARM64 Download 1.9566.9 v1.9552.25 February 21, 2026 Bug Fixes and Improvements Fix compatibility with GitHub Pull Requests extension Download 1.9552.25 v1.9552.24 February 17, 2026 Bug Fixes and Improvements Fix for self-updating on Windows Fix for macOS UI flickering Download 1.9552.24 v1.9552.21 February 12, 2026

v1.9552.25 February 21, 2026 Bug Fixes and Improvements Fix compatibility with GitHub Pull Requests extension Download 1.9552.25 v1.9552.24 February 17, 2026 Bug Fixes and Improvements Fix for self-updating on Windows Fix for macOS UI flickering Download 1.9552.24 v1.9552.21 February 12, 2026 Cascade Improvements Plan Mode now supports automatic switching back to Code Mode when you start implementing a plan Added support for reading skills from the .agents/skills directory Tracking triggered rules in the post_cascade_response hook via a new rules_applied field Diff zones will now automatically close on commit Linux ARM64 Support Full Linux ARM64 client support with deb and rpm packaging Enterprise & Team Improvements Cloud configuration for Cascade Hooks is now available for enterprise teams via the cloud dashboard Support for Devin service key authentication Bug Fixes and Improvements Fixes for post_write_code hooks to handle all code editing tool formats Fixes and improvements for MCP server resource loading Fixed osascript privilege escalation being incorrectly triggered on Linux for shell command installation Addressed multiple memory leaks Improved RTL language rendering in

v1.9552.24 February 17, 2026 Bug Fixes and Improvements Fix for self-updating on Windows Fix for macOS UI flickering Download 1.9552.24 v1.9552.21 February 12, 2026 Cascade Improvements Plan Mode now supports automatic switching back to Code Mode when you start implementing a plan Added support for reading skills from the .agents/skills directory Tracking triggered rules in the post_cascade_response hook via a new rules_applied field Diff zones will now automatically close on commit Linux ARM64 Support Full Linux ARM64 client support with deb and rpm packaging Enterprise & Team Improvements Cloud configuration for Cascade Hooks is now available for enterprise teams via the cloud dashboard Support for Devin service key authentication Bug Fixes and Improvements Fixes for post_write_code hooks to handle all code editing tool formats Fixes and improvements for MCP server resource loading Fixed osascript privilege escalation being incorrectly triggered on Linux for shell command installation Addressed multiple memory leaks Improved RTL language rendering in todo lists Download 1.9552.21 v1.9544.35 February 5, 2026 New Models GPT-5.3-Codex-Spark is now available in Arena Mode’s Fast

v1.9552.21 February 12, 2026 Cascade Improvements Plan Mode now supports automatic switching back to Code Mode when you start implementing a plan Added support for reading skills from the .agents/skills directory Tracking triggered rules in the post_cascade_response hook via a new rules_applied field Diff zones will now automatically close on commit Linux ARM64 Support Full Linux ARM64 client support with deb and rpm packaging Enterprise & Team Improvements Cloud configuration for Cascade Hooks is now available for enterprise teams via the cloud dashboard Support for Devin service key authentication Bug Fixes and Improvements Fixes for post_write_code hooks to handle all code editing tool formats Fixes and improvements for MCP server resource loading Fixed osascript privilege escalation being incorrectly triggered on Linux for shell command installation Addressed multiple memory leaks Improved RTL language rendering in todo lists Download 1.9552.21 v1.9544.35 February 5, 2026 New Models GPT-5.3-Codex-Spark is now available in Arena Mode’s Fast Arena and Hybrid Arena battle groups Claude Opus 4.6 (fast mode) Claude Opus 4.6 (fast mode) is now available in Windsurf in research

v1.9544.35 February 5, 2026 New Models GPT-5.3-Codex-Spark is now available in Arena Mode’s Fast Arena and Hybrid Arena battle groups Claude Opus 4.6 (fast mode) Claude Opus 4.6 (fast mode) is now available in Windsurf in research preview with limited-time promotional pricing for self-serve users until Feb 16: No thinking: 10x credits With thinking: 12x credits Opus 4.6 (fast mode) has the same intelligence as Opus 4.6 but with up to 2.5x higher output speeds. Claude Opus 4.6 Claude Opus 4.6 is now available in Windsurf with limited-time promotional pricing for self-serve users: No thinking: 2x credits With thinking: 3x credits Opus 4.6 is available in Arena Mode’s Frontier Arena and Hybrid Arena. Try it head-to-head against other frontier models to see how it performs on your real-world tasks. Download 1.9544.35 v1.9544.28 February 3, 2026 Bug Fixes and Improvements Fix issues with Arena Mode Battle Groups Download 1.9544.28 v1.9544.26 January 30, 2026 Bug Fixes and Improvements Improve UI styling for announcement popups and notifications Close model picker when selecting a battle group Download 1.9544.26 v1.9544.24 January 30, 2026 Wave 14: Arena Mode Arena Mode brings

v1.9544.28 February 3, 2026 Bug Fixes and Improvements Fix issues with Arena Mode Battle Groups Download 1.9544.28 v1.9544.26 January 30, 2026 Bug Fixes and Improvements Improve UI styling for announcement popups and notifications Close model picker when selecting a battle group Download 1.9544.26 v1.9544.24 January 30, 2026 Wave 14: Arena Mode Arena Mode brings side-by-side model comparison directly into your IDE, plus Plan Mode for smarter task planning. Arena Mode Run two Cascade agents side-by-side with hidden model identities and vote on which performs better. Arena Mode lets you discover which models actually work best for your workflow, codebase, and tasks—not just what benchmarks or influencers say. Battle Groups : Choose specific models to compare or let Windsurf randomly select from curated groups like “fast models” vs “smart models” Personal & Global Leaderboards : Your votes contribute to both a personal leaderboard (your preferences) and a global one (across all Windsurf users) Sync or Branch : Send followup prompts to both agents simultaneously, or branch and explore different paths individually To get started, select the new Arena tab in the model picker. All battle

v1.9544.26 January 30, 2026 Bug Fixes and Improvements Improve UI styling for announcement popups and notifications Close model picker when selecting a battle group Download 1.9544.26 v1.9544.24 January 30, 2026 Wave 14: Arena Mode Arena Mode brings side-by-side model comparison directly into your IDE, plus Plan Mode for smarter task planning. Arena Mode Run two Cascade agents side-by-side with hidden model identities and vote on which performs better. Arena Mode lets you discover which models actually work best for your workflow, codebase, and tasks—not just what benchmarks or influencers say. Battle Groups : Choose specific models to compare or let Windsurf randomly select from curated groups like “fast models” vs “smart models” Personal & Global Leaderboards : Your votes contribute to both a personal leaderboard (your preferences) and a global one (across all Windsurf users) Sync or Branch : Send followup prompts to both agents simultaneously, or branch and explore different paths individually To get started, select the new Arena tab in the model picker. All battle groups are free for the first week for paid users. Plan Mode Plan Mode is a new Cascade mode alongside Code and

v1.9544.24 January 30, 2026 Wave 14: Arena Mode Arena Mode brings side-by-side model comparison directly into your IDE, plus Plan Mode for smarter task planning. Arena Mode Run two Cascade agents side-by-side with hidden model identities and vote on which performs better. Arena Mode lets you discover which models actually work best for your workflow, codebase, and tasks—not just what benchmarks or influencers say. Battle Groups : Choose specific models to compare or let Windsurf randomly select from curated groups like “fast models” vs “smart models” Personal & Global Leaderboards : Your votes contribute to both a personal leaderboard (your preferences) and a global one (across all Windsurf users) Sync or Branch : Send followup prompts to both agents simultaneously, or branch and explore different paths individually To get started, select the new Arena tab in the model picker. All battle groups are free for the first week for paid users. Plan Mode Plan Mode is a new Cascade mode alongside Code and Ask. Use it to create detailed implementation plans before diving into code. Pro tip : Type megaplan in the Cascade input box to trigger an advanced form that asks clarifying questions