Changelog

While we're always shipping fixes and improvements, our team bundles new features, breaking changes, and other user-facing updates into regular releases. This page logs the changes to each version of Devvit.

To use the latest version of Devvit:

1. Run npm install devvit@latest to update your CLI.
2. Run npx devvit update app to update your @devvit dependencies.

Please note: you may see features available across Devvit packages that are not documented or noted in our changelog. These are experimental features that are not stable and are subject to change, or removal, from the platform. Please use caution when testing or implementing experimental features.

Release 0.12.20: Maintenance Release

Release Date: Apr 20, 2026

This release contains a few internal fixes and improvements only.

Release 0.12.19: Minor Updates

Release Date: Apr 13, 2026

This release includes the following updates:

• Clarified that when requestExpandedMode() navigates to the same entrypoint, it may (but not always) trigger a reload.

• Added a post parameter to the shareSheet effect to allow sharing links to other posts.

Release 0.12.18: Custom Post Styling, Video Comments, and Cache

Release Date: Apr 6, 2026

This release adds support for post styles, which lets you customize how your app posts look within Reddit. We’ve added Creating a custom post documentation to walk you through building custom posts and configuring post styles. This includes options for setting background colors before your app loads, adjusting post height, and enabling custom share images when your app is shared.

Other fixes

• Added video to the CommentMediaTypes type. This fixes an issue where apps on subreddits with video comments crashed due to getCurrentSubreddit() throwing invalid comment media type: video error.
• Fixed an issue where in-memory cache data was unintentionally shared across subreddits. Cache is now partitioned per subreddit, which ensures you’ll get accurate data for each subreddit.

Release 0.12.17 Redis Update and Minor Fixes

Release Date: Mar 30, 2026

This release included updated Redis transaction support. hSetNX was available on RedisClient but missing from transaction interfaces, preventing atomic hash set-if-not-exists operations within transactions. Updates include:

• Added hSetNX to the TxClientLike type
• Implemented hSetNX in the Redis transaction class, following the existing hSet pattern
• Added hSetNX and lowercase hsetnx alias to the public API transaction class, consistent with other hash method aliases

Other Fixes

• Fixed an issue where editing a post or comment with an image in the rich text builder triggered an INVALID_SELFPOST: richtext_json error.

• Fixed an issue where SVG files containing XML declarations or DOCTYPE tags produced broken icons in devvit create icons by stripping content before the <svg> tag.

Release 0.12.16 Subreddit APIs and Poll Post Updates

Release Date: Mar 23, 2026

This release adds new APIs for smoother subreddit management, a unified rules model, and shared proto endpoints. Also included: new poll post functionality.

Subreddit Management

• subreddit.updateSettings() updates subreddit settings (this method only supports the settings currently exposed in the SubredditSettings type).
• subreddit.updateRemovalReasons() updates subreddit removal reasons.
• subreddit.deleteRemovalReasons() deletes a subreddit removal reason.

Subreddit Rules

• subreddit.getRules() (or reddit.getRules()) retrieves rules.
• subreddit.createRule() (or reddit.createRule()) creates rules.
• subreddit.reorderRules() (or reddit.reorderRules()) reorders rules.
• rule.updateRule() updates an existing rule.
• rule.removeRule() deletes a rule.

Note: methods available on reddit provide the same functionality as their subreddit counterparts but do not require a subreddit instance.

Proto APIs

• reddit.getBestPosts returns a list of posts from the authenticated user’s front page. By default this runs as the app account, but it can be overridden on a per-app basis to always run as the user.
• reddit.getDuplicatesForPosts returns a list of other posts containing the same link as the input post.
• reddit.showComment unhides a comment that was hidden due to crowd control. Comments hidden for other reasons remain hidden.
• comment.snoozeReports and post.snoozeReports prevent reports for the input comment or post with the given reason from escalating to subreddit moderators for 7 days.
• comment.unsnoozeReports and post.unsnoozeReports remove the snooze applied by snoozeReports for the input comment or post.
• comment.updateCrowdControlLevel and post.updateCrowdControlLevel update the crowd control level for the comment or post (OFF, LENIENT, MEDIUM, or STRICT).
• user.getTrophies returns a list of trophies the user has earned.

Poll Post Enhancements

• Introduces a pollOption field on the Post object to access poll options.
• Adds a getCurrentUserPollOption() method to retrieve the option selected by the current user (if any). This method needs runAs permission to work, so please contact us if you intend to use it.

Devvit 0.12.15: The Nothing-To-See-Here Release

Release Date: Mar 16, 2026

This release contains internal improvements and infrastructure updates to improve stability and support future development.

Devvit 0.12.14: Community Game Pro Tips, Platform Changes, and Fixes

Release Date: Mar 9, 2026

This release brings new guidance to help you build more engaging community games, along with important platform updates and several developer experience improvements.

Level Up Your Community Games

The newly updated Building Community Games guide includes new tips for creating engaging gameplay that thrives on Reddit! Learn which mechanics drive long-term engagement and how to improve your chances of getting featured.

Other Fixes

• Improved modmail validation and logging: Added subreddit ID validation for Reddit Modmail requests and improved error logging.
• Fixed image uploads in comments created with RichTextBuilder: Resolved an issue where comment creation failed when adding images due to media processing conflicts. RichTextBuilder now accepts media URLs instead of media IDs, and the Devvit runtime converts them during processing to ensure compatibility with native post and comment media handling.
• Custom Post styles support: You can now pass an optional styles parameter to submitCustomPost(), and use the new getPostStyles() and setPostStyles() methods available on both the Reddit API and Post objects.

Devvit 0.12.13: Minor Tweaks

Release Date: Feb 17, 2026

This release has a few minor tweaks to make your life easier:

• CLI update: By developer request, publish now bumps the patch version by default instead of the minor version.
• Playtest fix: Live reloading for apps during playtests is working again.
• General clean-up: We removed outdated templates that were previously used in CLI mode.

Devvit 0.12.12: New Templates, Vite Plugin, and Test Harness

Release Date: February 9, 2026

Release 0.12.12 is all about streamlining the developer experience. This release includes:

• Updated templates. All templates now use the Vite plugin and a simplified structure, which includes:

  • Vite plugin support
  • agents.md replacing .kiro and .cursor files
  • Simpler dev workflow with clearer playtest logs
  • No .env required for playtests
  • Hono replaces Express as the default server (but you can still use any web framework you prefer!)
  • Typed endpoints
  • A bare template (formerly “hello world”) that now uses esbuild with no server framework
  • New React + tRPC vibe coding template

• New Vite plugin. This is an optional plugin that provides simpler console output, clearer logs, and unified build commands. The plugin hides the protobuf warning and automatically bundles entrypoints based on devvit.json, making multi-entrypoint apps easier to manage.

• Scripts field in devvit.json. Enables you to provide a command to run during devvit upload and devvit playtest. You’ll notice a big difference in the level of noise your logs emit during playtest by using this instead of the concurrently script that templates previously used.

• Devvit test harness. Adds an easy way to write integration tests for Devvit plugins using Vitest, supporting a more test-driven workflow.

• Standardized image upload limits. GIF uploads are now all limited to 20 MB across all upload paths, aligning them with existing upload limits for a more consistent developer experience.

Devvit 0.12.11: App Review Update

Release Date: Feb 2, 2026

In this release, we’re cleaning up the app review process (literally). The CLI now uploads a clean, unbundled source zip (respecting .gitignore) for app review. This will help our human reviewers see properly formatted TypeScript and clearer diffs.

Devvit 0.12.10: Good Karma

Release Date: Jan 26, 2026

We've updated getUserKarmaForCurrentSubreddit() to allow users to fetch their own subreddit karma, even if they're not moderators.

Devvit 0.12.9: Gaming Templates and Error Handling

Release Date: Jan 20, 2026

In this release, we introduced a Game Engines tab on developers.reddit.com/new to help you get started faster with gaming-specific templates.

You’ll also see improved error handling in submitCustomPost() that correctly decodes and surfaces messages when the post data size limit is exceeded.

Devvit 0.12.8: Simplified Playtest Logs

Release Date: Jan 12, 2026

In our first release of the year, we present to you simplified playtest logs. The playtest command now produces cleaner, less verbose output by default. Detailed logs, including webview asset uploads, are now hidden behind the --verbose flag for easier reading.

Devvit 0.12.7: The REAL End-of-Year Updates

Release Date: Dec 22, 2025

It turns out that we couldn't end the year without a couple more upgrades:

• Added an authorFlair field to Post and Comment objects in @devvit/public-api and @devvit/reddit (a community contribution from u/PitchforkAssistant).

• Added getUserKarmaFromCurrentSubreddit to the public API, which returns a user's subreddit karma instead of their total Reddit karma.

And now that's a wrap!

Devvit 0.12.6: End-of-the-Year Updates

Release Date: Dec 15, 2025

In the last release of 2025, we’ve made a slew of minor updates (they're still cool, though!).

• Added explicit version flag: You can now specify an exact version number (e.g., --version 1.2.3) when publishing.
• Deprecated webViewModeListener: Now you can use the "focus" event on the inline view to reliably detect when control returns from the expanded view.
• Fixed inconsistent casing: The Subreddit type was previously printed in all lowercase for getCurrentSubreddit(), but in all uppercase for getSubredditInfoByName() and getSubredditInfoById(). This inconsistency has now been resolved.
• Clarified non-functional fields: The Payments plugin does not currently support filtering, so specifying start or end has no effect. This will be supported in a later release.
• Added new User fields: The User object now includes displayName and about to streamline user data experience.
• Bug fixes
  • Corrected post height for Devvit Web apps to prevent layout jumps on the initial web view render.
  • Fixed an issue with the reddit.reorderWidgets method.
  • Resolved an issue where fetching image widgets without a linked URL would throw an error.

note

2025 is a wrap! All of us on the Dev Platform team wish you and yours the absolute best holiday season, and we can’t wait to create with you in 2026!

Devvit 0.12.5: Payments for Devvit Web

Release Date: Dec 1, 2025

In this release, we’re excited to bring payment support to Devvit Web. If you’re looking to add payments to your app, check out our updated docs.

Devvit 0.12.4: Ins and Outs

Release Date: Nov 24, 2025

Devvit 0.12.4 is packed with payments (experimental) polish, and new tooling for monitoring WebView traffic

Devvit Web Payments (experimental) bugfixes and improvements

• Fixed a bug with payments refunds hitting incorrect backend endpoint
• Fixed a bug where duplicate “Get Payments Help” menu items were showing
• The CLI’s playtest command watches your products file for live reloads, and devvit products add understands both legacy JSON files and the new config block so Devvit Web apps stay in sync.
• Payments types are re-exported from @devvit/payments/sharedto @devvit/web/shared, preventing mismatched product/order typings downstream.

WebView analytics and APIs

• Improved accuracy of clicks measurement for App Directory Analytics
• Bundle size improvements
• Deprecated remaining splash screen APIs (setSplash and SubmitCustomPostSplashOptions fields)

Devvit 0.12.3: Odds and Ends

Release Date: Nov 17, 2025

This release focuses on Reddit data access and instrumenting WebView clients

Reddit data & proto updates

• @devvit/reddit now exposes getUserKarmaForSubreddit() (later renamed to `getUserKarmaFromCurrentSubreddit()).
• ModAction trigger payloads now carries a stable id field for downstream tooling.

Web client & realtime instrumentation

• @devvit/realtime now publishes separate client/ and server/ entry points, preventing accidental server-only imports in browser bundles.
• Bundle size improvements
• Web clients now annotate the request Context with the user’s client name/version
• Improved accuracy of clicks measurement for App Directory Analytics

Payments status

• @devvit/payments now tagged as experimental

Devvit 0.12.2: Inline Mode, Launch Screens,Expanded App Experiences, and Developer Logs

Release Date: Nov 10, 2025

Release 0.12.2 delivers a major evolution in how interactive Devvit apps load, display, and engage users. With this update, you can now leverage inline web views, in addition to expanded mode, to build your interactive posts with Devvit Web. We’re also deprecating Splash Screens in favor of more customizable HTML inline launch screens.

Inline Mode

Your app's web view can now load directly inside the post unit—right in the feed or on the post details page. Users can start interacting immediately, with no extra taps or page loads.

Inline experiences blend smoothly into Reddit’s native post layout, which means that inline apps must meet performance standards and avoid conflicting with Reddit gestures for a native-quality experience. We encourage developers to read the guidance and rules around inline carefully before building with this feature.

Check out r/HotAndCold and r/Honk for examples, and learn how to add inline mode to your app.

note

Devvit apps using inline web views are currently seeing inflated metrics in their App Analytics Dashboard. We're working on improving these estimations.

Improved Inline Launch Screens

Splash screens are yesterday’s news. The improved inline launch screens are now fully customizable, HTML-based entry points for your interactive posts. This update gives you control over design, animation, and loading behavior and uses the same tools and styles as the rest of your app.

The new first screen automatically loads before your app’s main entry point. Read the docs to learn how to upgrade your app and customize your launch screen.

note

Deprecation notice: We're deprecating the splash parameter in submitCustomPost() and removing it in the next major version update. Learn how to update your app.

Multiple App Entry Points

Entry points act as a router that organizes your app across different view modes. Each entry point specifies the initial HTML file for the specific context. A user might experience your app inline, when it’s embedded in a post, or launch it in expanded mode for a larger, full-screen mobile experience.

Expanded Mode

Expanded Mode lets users open your app or game in a full-screen experience, which is perfect for mobile devices. This feature works hand-in-hand with multiple entry points, letting users start small (interacting inline in the feed) and then expanding into a full experience.

Learn how to add Expanded Mode functionality to your app.

Developer Logs

We’ve also shipped our first installation-level developer permissions. Developer logs read permission lets mods share read-only logs and install history of an installation with you. This is useful for debugging issues with a particular installation without having to be added as a mod to the subreddit.

We’re really excited about these updates and can’t wait to hear what you think!

Devvit 0.12.1: Cache Helper, Analytics dashboard for developers, and smaller fixes

Release Date: October 10, 2025

In this release, we’ve added back the cache helper for Devvit Web and also included an App Analytics tab for you to track your app’s engagement metrics.

Cache Helper The cache helper helps your app reduce the number of server side calls by caching the response for all users. This is great for any data that you plan to share across users, like a global leaderboard or consistent data from an external source like the score of a sports game. We now have this feature available in Devvit Web, and you can look up how to use it in the cache helper docs.

App Analytics There’s a new App Analytics tab in your app settings that lets you track your progress against Reddit Developer Funds.

Other fixes This release also includes a handful of other fixes including:

• Added a method mergePostData() to append to postData.
• Fixed reddit.setPostFlair() method.
• Added a new triggers field that fixed an entrypoint triggers issue.
• Added error handling when trying to devvit newon an already existing app name.
• Added disconnectRealtime() and isRealtimeConnected() as helper methods for the realtime plugin.

Devvit 0.12.0: Devvit Web

Release Date: August 13, 2025

We're excited to introduce Devvit Web, a new way to build games and apps on Reddit using standard web technologies you already know and love. This release brings the power of modern web development to the Reddit platform, letting you build with React, Three.js, Phaser, and other industry-standard frameworks while maintaining access to all the Devvit capabilities you rely on. Moving forward, this will be the preferred way of building interactive post apps.

What's New

Devvit Web transforms how you build Reddit apps:

• Standard web development: Build apps just like you would for the web, using familiar frameworks and tools
• Server endpoints: Define /api/ endpoints using Node.js frameworks like Express.js or Koa
• New configuration system: devvit.json provides a clean, declarative way to configure your app
• Unified SDK: @devvit/web package with clear client/server separation Better AI compatibility: Standard web technologies work seamlessly with AI coding tools

There's also a new web-based creation flow that makes creating new apps faster:

• A step-by-step UI guides you through the initial steps to create an app
• Automatically builds a playtest subreddit for testing
• Gives you the code you need to access your new app via the terminal

Key Features

• Client/server architecture: Clear separation between frontend (@devvit/web/client) and backend (@devvit/web/server)

• Full platform access: Continued access to Redis, Reddit API, and Devvit's hosting services Current Limitations

• Serverless endpoints only (no long-running connections or streaming)

• Package restrictions (no fs or external native packages)

• Single request/response model (no websockets)

• Client-side fetch is limited to app domain (enforced via CSP)

Getting Started

• New apps: Go to developers.reddit.com/new to start building new apps

Support & Feedback

We'd love to hear about your experience with Devvit Web! Join the conversation in #devvit-web on Discord to share feedback, report issues, and connect with other developers building with Devvit Web.

Even More Features

In addition to Devvit Web, release 0.12 also adds:

• Post data - Post data allows you to add data to your post when you submit it so that you can retrieve and use in your app without an additional Redis call.
• Splash screen - Having a compelling first screen of your app is one of the most important indicators of good post engagement. Every submitPost will come with a default per-post splash screen.