Wrangler
We've released the next major version of Wrangler — wrangler@4.0.0. Wrangler v4 is a major release focused on updates to underlying systems and dependencies, along with improvements to keep Wrangler commands consistent and clear.
You can run the following command to install it in your projects:
Unlike previous major versions of Wrangler, which were foundational rewrites and rearchitectures — Version 4 of Wrangler includes a much smaller set of changes. If you use Wrangler today, your workflow is very unlikely to change.
A detailed migration guide is available and if you find a bug or hit a roadblock when upgrading to Wrangler v4, open an issue on the cloudflare/workers-sdk repository on GitHub.
Going forward, we'll continue supporting Wrangler v3 with bug fixes and security updates until Q1 2026, and with critical security updates until Q1 2027, at which point it will be out of support.
The full changelog is available at https://github.com/cloudflare/workers-sdk/blob/main/packages/wrangler/CHANGELOG.md#400
Patch Changes
- #8393 - c4653081cThanks @penalosa! - Deprecate Wrangler v2. Since the release of Wrangler v3 in 2023, we’ve seen great adoption, and today over 95% of active Wrangler usage is with v3.- As such, Wrangler v2 is now deprecated, and no new features or bug fixes are being published for v2. We strongly recommend you upgrade to the latest version of Wrangler to receive continued support. We have a migration guide to make this process easy! If you encounter any difficulties, please let us know by filing an issue. 
Patch Changes
- #8383 - 8d6d722Thanks @matthewdavidrodgers! - Make kv bulk put --local respect base64:true- The bulk put api has an optional "base64" boolean property for each key. Before storing the key, the value should be decoded from base64. - For real (remote) kv, this is handled by the rest api. For local kv, it seems the base64 field was ignored, meaning encoded base64 content was stored locally rather than the raw values. - To fix, we need to decode each value before putting to the local miniflare namespace when base64 is true. 
- #8273 - e3efd68Thanks @penalosa! - Support AI, Vectorize, and Images bindings when using- @cloudflare/vite-plugin
- #8427 - a352798Thanks @vicb! - update unenv-preset dependency to fix bug with Performance global- Fixes #8407 Fixes #8409 Fixes #8411 
- #8390 - 53e6323Thanks @GregBrimble! - Parse and apply metafiles (- _headersand- _redirects) in- wrangler devfor Workers Assets
- #8392 - 4d9d9e6Thanks @jahands! - fix: retry zone and route lookup API calls- In rare cases, looking up Zone or Route API calls may fail due to transient errors. This change improves the reliability of - wrangler deploywhen these errors occur.- Also fixes a rare issue where concurrent API requests may fail without correctly throwing an error which may cause a deployment to incorrectly appear successful. 
Minor Changes
- #8367 7b6b0c2Thanks @jonesphillip! - Deprecated--idparameter in favor of--namefor both thewrangler r2 bucket lifecycleandwrangler r2 bucket lockcommands
Minor Changes
Patch Changes
- #8338 - 2d40989Thanks @GregBrimble! - feat: Upload _headers and _redirects if present with Workers Assets as part of- wrangler deployand- wrangler versions upload.
- #8288 - cf14e17Thanks @CarmenPopoviciu! - feat: Add assets Proxy Worker skeleton in miniflare- This commit implements a very basic Proxy Worker skeleton, and wires it in the "pipeline" miniflare creates for assets. This Worker will be incrementally worked on, but for now, the current implementation will forward all incoming requests to the Router Worker, thus leaving the current assets behaviour in local dev, the same. - This is an experimental feature available under the - --x-assets-rpcflag:- wrangler dev --x-assets-rpc.
- #8216 - af9a57aThanks @ns476! - Support Images binding in- wrangler types
- #8304 - fbba583Thanks @jahands! - chore: add concurrency and caching for Zone IDs and Workers routes lookups- Workers with many routes can result in duplicate Zone lookups during deployments, making deployments unnecessarily slow. This compounded by the lack of concurrency when making these API requests. - This change deduplicates these requests and adds concurrency to help speed up deployments. 
Minor Changes
- #8256 - f59d95bThanks @jbwcloudflare! - Add two new Queues commands: pause-delivery and resume-delivery- These new commands allow users to pause and resume the delivery of messages to Queue Consumers 
Patch Changes
- #8274 - fce642dThanks @emily-shen! - fix bindings to entrypoints on the same worker in workers with assets
- #8201 - 2cad136Thanks @ichernetsky-cf! - fix: interactively list Cloudchamber deployments using labels
- #8289 - a4909cbThanks @penalosa! - Add the experimental- --x-assets-rpcflag to gate feature work to support JSRPC with Workers + Assets projects.
Minor Changes
Patch Changes
Minor Changes
- #8253 6dd1e23Thanks @CarmenPopoviciu! - Add--cwdglobal argument to thewranglerCLI to allow changing the current working directory before running any command.
Patch Changes
Patch Changes
- #8175 eb46f98Thanks @edmundhung! - fix:unstable_splitSqlQueryshould ignore comments when splitting sql into statements
Patch Changes
- #7687 - cc853cfThanks @emily-shen! - fix: bug where Pages deployments that create new projects were failing with a new repo
- #8131 - efd7f97Thanks @lambrospetrou! - D1 export will now show an error when the presigned URL is invalid
- Updated dependencies [ - 5e06177]:
Patch Changes
- #8021 28b1dc7Thanks @0xD34DC0DE! - fix: prevent __cf_cjs name collision in the hybrid Nodejs compat plugin
Minor Changes
- #8120 - 3fb801fThanks @sdnts! - Add a new- updatesubcommand for Queues to allow updating Queue settings
- #8120 - 3fb801fThanks @sdnts! - Allow overriding message retention duration when creating Queues
- #8026 - 542c6eaThanks @penalosa! - Add- --outfileto- wrangler deployfor generating a worker bundle.- This is an advanced feature that most users won't need to use. When set, Wrangler will output your built Worker bundle in a Cloudflare specific format that captures all information needed to deploy a Worker using the Worker Upload API 
- #8026 - 542c6eaThanks @penalosa! - Add a- wrangler check startupcommand to generate a CPU profile of your Worker's startup phase.- This can be imported into Chrome DevTools or opened directly in VSCode to view a flamegraph of your Worker's startup phase. Additionally, when a Worker deployment fails with a startup time error Wrangler will automatically generate a CPU profile for easy investigation. - Advanced usage: - --args: to customise the way- wrangler check startupbuilds your Worker for analysis, provide the exact arguments you use when deploying your Worker with- wrangler deploy. For instance, if you deploy your Worker with- wrangler deploy --no-bundle, you should use- wrangler check startup --args="--no-bundle"to profile the startup phase.
- --worker-bundle: if you don't use Wrangler to deploy your Worker, you can use this argument to provide a Worker bundle to analyse. This should be a file path to a serialised multipart upload, with the exact same format as the API expects: https://developers.cloudflare.com/api/resources/workers/subresources/scripts/methods/update/
 
Patch Changes
- #8112 - fff677eThanks @penalosa! - When reporting errors to Sentry, Wrangler will now include the console output as additional metadata
- #8120 - 3fb801fThanks @sdnts! - Check bounds when overriding delivery delay when creating Queues
- #7950 - 4db1fb5Thanks @cmackenzie1! - Add local binding support for Worker Pipelines
- #8119 - 1bc60d7Thanks @penalosa! - Output correct config format from- wrangler d1 create. Previously, this command would always output TOML, regardless of the config file format
- #8130 - 1aa2a91Thanks @emily-shen! - Include default values for wrangler types --path and --x-include-runtime in telemetry- User provided strings are still left redacted as always. 
- #8061 - 35710e5Thanks @emily-shen! - fix: respect- WRANGLER_LOGin- wrangler dev- Previously, - --log-level=debugwas the only way to see debug logs in- wrangler dev, which was unlike all other commands.
- Updated dependencies [ - 4db1fb5]:
Patch Changes
- #8103 - a025ad2Thanks @emily-shen! - fix: fix bug where- wrangler secret list --format=jsonwas printing the wrangler banner.
- Updated dependencies []: 
Minor Changes
- #7990 - b1966dfThanks @cmsparks! - Add WRANGLER_CI_OVERRIDE_NAME for Workers CI
- #8028 - b2dca9aThanks @emily-shen! - feat: Also log when no bindings are found.- We currently print a worker's bindings during dev, versions upload and deploy. This just also prints something when there's no bindings found, in case you were expecting bindings. 
- #8037 - 71fd250Thanks @WillTaylorDev! - Provides unsafe.metadata configurations when using wrangler versions secret put.
Patch Changes
- #8058 - 1f80d69Thanks @WillTaylorDev! - Bugfix: Modified versions secret put to inherit all known bindings, which circumvents a limitation in the API which does not return all fields for all bindings.
- #7986 - 88514c8Thanks @andyjessop! - docs: clarifies that local resources are "simulated locally" or "connected to remote resource", and adds console messages to help explain local dev
- #8008 - 9d08af8Thanks @ns476! - Add support for Images bindings (in private beta for now), with optional local support for platforms where Sharp is available.
- #7769 - 6abe69cThanks @cmackenzie1! - Adds the following new option for- wrangler pipelines createand- wrangler pipelines updatecommands:- --cors-origins CORS origin allowlist for HTTP endpoint (use * for any origin) [array]
- #7290 - 0c0374cThanks @emily-shen! - fix: add support for workers with assets when running multiple workers in one- wrangler devinstance- https://github.com/cloudflare/workers-sdk/pull/7251 added support for running multiple Workers in one - wrangler dev/miniflare session. e.g.- wrangler dev -c wrangler.toml -c ../worker2/wrangler.toml, which among other things, allowed cross-service RPC to Durable Objects.- However this did not work in the same way as production when there was a Worker with assets - this PR should fix that. 
- #7769 - 6abe69cThanks @cmackenzie1! - Rename wrangler pipelines <create|update> flags- The following parameters have been renamed: - Previous Name - New Name - access-key-id - r2-access-key-id - secret-access-key - r2-secret-access-key - transform - transform-worker - r2 - r2-bucket - prefix - r2-prefix - binding - enable-worker-binding - http - enable-http - authentication - require-http-auth - filename - file-template - filepath - partition-template 
- #8012 - c412a31Thanks @mtlemilio! - Use fetchPagedListResult when listing Hyperdrive configs from the API- This fixes an issue where only 20 configs were being listed. 
- #8077 - 60310cdThanks @emily-shen! - feat: add telemetry to experimental auto-provisioning
Patch Changes
- #7988 - 444a630Thanks @edmundhung! - Fix #7985.- This reverts the changes on #7945 that caused compatibility issues with Node 16 due to the introduction of - sharp.
Patch Changes
- #7981 - e2b3306Thanks @WalshyDev! - Fixes a regression introduced in Wrangler 3.107.0 in which- [assets]was not being inherited from the top-level environment.
- Updated dependencies [ - ab49886]: