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pulumi

v3.252.0 Feature

This release adds 3 notable features for engineering teams evaluating rollout.

✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →

✓ No known CVEs patched in this version

Topics

aws azure cloud cloud-computing containers c#
+10 more
.net fsharp gcp go iac javascript kubernetes python serverless typescript

Summary

AI summary

Broad release touches Bug Fixes, 3.252.0, Miscellaneous, and https://github.com/pulumi/pulumi/pull/23802.

Changes in this release

Feature Low

Add `import` to generated automation APIs for NodeJS, Python and Go.

Add `import` to generated automation APIs for NodeJS, Python and Go.

Source: llm_adapter@2026-07-13

Confidence: high

Feature Low

Improve error message when using Pulumi ESC with a DIY backend to suggest logging into Pulumi Cloud.

Improve error message when using Pulumi ESC with a DIY backend to suggest logging into Pulumi Cloud.

Source: llm_adapter@2026-07-13

Confidence: high

Feature Low

Show command name for CLI commands when listing logs.

Show command name for CLI commands when listing logs.

Source: llm_adapter@2026-07-13

Confidence: high

Feature Low

Render non-UTF8 byte strings as b"<base64>" in diffs and JSON output.

Render non-UTF8 byte strings as b"<base64>" in diffs and JSON output.

Source: llm_adapter@2026-07-13

Confidence: high

Feature Low

Add `--reason` flag to `pulumi env open-request` for request explanation.

Add `--reason` flag to `pulumi env open-request` for request explanation.

Source: llm_adapter@2026-07-13

Confidence: high

Feature Low

Improve error message when a resource URN is not found in state, suggesting close matches and listing commands.

Improve error message when a resource URN is not found in state, suggesting close matches and listing commands.

Source: llm_adapter@2026-07-13

Confidence: high

Feature Low

Allow binding hooks to a resource's `onError` option.

Allow binding hooks to a resource's `onError` option.

Source: llm_adapter@2026-07-13

Confidence: high

Feature Low

Add a `production` runtime option for Node.js projects to skip devDependencies during install.

Add a `production` runtime option for Node.js projects to skip devDependencies during install.

Source: llm_adapter@2026-07-13

Confidence: high

Performance Low

Deduplicate identical apply arguments in generated code to avoid unnecessary Promise.all/pulumi.all/Output.All.

Deduplicate identical apply arguments in generated code to avoid unnecessary Promise.all/pulumi.all/Output.All.

Source: granite4.1:30b@2026-07-14-audit

Confidence: low

Bugfix Medium

Exit with non‑zero code when CLI command group receives unknown or no subcommand.

Exit with non‑zero code when CLI command group receives unknown or no subcommand.

Source: llm_adapter@2026-07-13

Confidence: high

Bugfix Medium

Fix panic when displaying a stack‑level policy violation.

Fix panic when displaying a stack‑level policy violation.

Source: llm_adapter@2026-07-13

Confidence: high

Bugfix Low

Make reading non-secret stack outputs and running `pulumi about` no longer require the passphrase for passphrase‑encrypted stacks.

Make reading non-secret stack outputs and running `pulumi about` no longer require the passphrase for passphrase‑encrypted stacks.

Source: granite4.1:30b@2026-07-14-audit

Confidence: low

Bugfix Low

Avoid `pulumi logs <command>` showing the log for the currently running command.

Avoid `pulumi logs <command>` showing the log for the currently running command.

Source: granite4.1:30b@2026-07-14-audit

Confidence: low

Bugfix Low

Fix calling delete on PF resources that need read called first.

Fix calling delete on PF resources that need read called first.

Source: granite4.1:30b@2026-07-14-audit

Confidence: low

Bugfix Low

Submit the change request created by `pulumi env open-request` so it is pending approval instead of being left as an unsubmitted draft.

Submit the change request created by `pulumi env open-request` so it is pending approval instead of being left as an unsubmitted draft.

Source: granite4.1:30b@2026-07-14-audit

Confidence: low

Bugfix Low

Fix the initial prompt sometimes rendering above the welcome banner in `pulumi neo`.

Fix the initial prompt sometimes rendering above the welcome banner in `pulumi neo`.

Source: granite4.1:30b@2026-07-14-audit

Confidence: low

Bugfix Low

Fix importing a resource whose import identifier differs from its canonical ID to prevent deletion on subsequent update.

Fix importing a resource whose import identifier differs from its canonical ID to prevent deletion on subsequent update.

Source: granite4.1:30b@2026-07-14-audit

Confidence: low

Bugfix Low

Failed resource registrations will return faulted outputs, not unknown outputs.

Failed resource registrations will return faulted outputs, not unknown outputs.

Source: granite4.1:30b@2026-07-14-audit

Confidence: low

Bugfix Low

Fix empty node_modules folders in serialized function archives when using pnpm or symlinked workspace packages.

Fix empty node_modules folders in serialized function archives when using pnpm or symlinked workspace packages.

Source: granite4.1:30b@2026-07-14-audit

Confidence: low

Full changelog

3.252.0 (2026-07-13)

Features

  • [auto] Add import to the generated automation APIs for NodeJS, Python and Go #23876
  • [cli] Improve the error message when using Pulumi ESC with a DIY backend to suggest logging into Pulumi Cloud #23811
  • [cli] Show command name for cli commands when running any command that lists logs #23889
  • [cli/display] Render strings containing non-UTF8 bytes as b"" in diffs and JSON output #23870
  • [cli/env] Add a --reason flag to pulumi env open-request to explain the request to approvers #23802
  • [cli/state] Improve the error message when a resource URN is not found in the state for pulumi state commands, suggesting close-matching URNs and how to list the URNs in the stack #23812
  • [pcl] Allow binding hooks to a resource's onError option #23838
  • [sdk/nodejs] Add a production runtime option for Node.js projects. When set to true in Pulumi.yaml, pulumi install skips devDependencies (npm --production, pnpm --production, yarn --production). #23849

Bug Fixes

  • [cli] Exit with a non-zero code when a command group such as pulumi env is given an unknown subcommand or no subcommand at all #23814
  • [cli] Fix a panic when displaying a stack-level policy violation #23692
  • [cli] Make reading non-secret stack outputs and running pulumi about no longer require the passphrase for passphrase-encrypted stacks #23820
  • [cli] Avoid pulumi logs <command> showing the log for the currently running command #23887
  • [cli/do] Fix calling delete on PF resources that need read called first #23837
  • [cli/env] Submit the change request created by pulumi env open-request so it is pending approval instead of being left as an unsubmitted draft #23802
  • [cli/neo] Fix the initial prompt sometimes rendering above the welcome banner in pulumi neo #23831
  • [engine] Fix importing a resource whose import identifier differs from its canonical ID causes the resource to be deleted on a subsequent update #23834
  • [programgen] Deduplicate identical apply arguments to avoid unnecessary Promise.all/pulumi.all/Output.All in generated code #22293
  • [sdk] Failed resource registrations will return faulted outputs, not unknown outputs #23844
  • [sdk/nodejs] Fix empty node_modules folders in serialized function archives when using pnpm or symlinked workspace packages #23866

Miscellaneous

  • [sdk/nodejs] Report the TypeScript version in pulumi about #23850
  • [sdk/nodejs] Update OpenTelemetry dependencies #23855

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About pulumi

Pulumi - Infrastructure as Code in any programming language

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Related context

Earlier breaking changes

  • v3.245.0 Remove "name" from plugin loading functions and require "Type" on Configure & DiffConfig calls in Go SDK.
  • v3.245.0 Rename `pulumi stack init` command to `new`.
  • v3.238.0 `--format` flag renamed to `--output` on `pulumi api` and subcommands.
  • v3.238.0 `pulumi cloud api` renamed to `pulumi api`.

Beta — feedback welcome: [email protected]