build(261): add IntelliJ IDEA 2026.1 build target by a1flecke · Pull Request #6331 · aws/aws-toolkit-jetbrains

a1flecke · 2026-03-31T14:11:06Z

Summary

Adds IDE profile for IntelliJ IDEA 2026.1 (build 261.*) to resolve plugin incompatibility with the latest IDE release.

Fixes #6324

Changes

isUnifiedIde() helper: Replaces 11 scattered startsWith("2025.3") / contains("253") checks with a future-proof version comparison (>= 253). Next IDE releases won't require updating these checks.
2026.1 profile in IdeVersions.kt with stable SDK and marketplace plugin versions
kotlinx-coroutines updated to 1.10.2-intellij-1 for build 261
Kotlin API target extended to cover 2026.1
Rider build script updated for rd-gen 2026.1.3 API changes (hashFolder/sources() removed, SystemInfo import path changed)
Code With Me → Remote Development plugin rename in 2026.1 bundled plugins
PyAddSdkPanel removal: Moved PyCharmSdkUtil.kt to src-243-253/ (API removed in 2026.1)
TreeVisitor.Acceptor.accept() nullability change: Added src-261+/S3TreeTableModel.kt with updated return type

Known limitations

Gateway: JetBrains Gateway 2026.1 DMG extraction on macOS may fail during Gradle transforms (pre-existing macOS issue)
Rider generateModels: rd-gen 2026.1.3 changed model compilation approach — needs further investigation for full Rider support

Testing

Core modules (plugin-core, plugin-toolkit:jetbrains-core, plugin-amazonq) compile successfully against IntelliJ IDEA 2026.1
Project configuration passes for all modules including Rider and Gateway
isUnifiedIde() has parameterized unit tests covering boundary cases

Test plan

CI passes for core module compilation against 2026.1
Plugin installs without "incompatible" warning in IntelliJ IDEA 2026.1
Existing 2025.3 profile still works (verify ideProfileName=2025.3 builds)

…ws#6206) * fix: reduce number of calls sent to ui before it is ready * fix(amazonq): fix ci builds --------- Co-authored-by: Manodnya Bhoite <manodnyb@amazon.com>

* fix(amazonq): Can't remove document listener * fix: updating the mockitoKotlin version for fixing ci builds * fix: upgrade mockito-kotlin to 6.2.3 and mockito-core to 5.20.0 - Update mockito from 5.12.0 to 5.20.0 - Update mockitoKotlin from 5.4.0 to 6.2.3 - Remove snapshot repository since we're using stable releases - Update CodeWhispererTestBase.kt to use mockito-kotlin 6.x API syntax This fixes failing CI tests caused by downgrading from 5.4.1-SNAPSHOT.

aws#6222) * fix(toolkit): region/credential picker dropdown not closing after selection --------- Co-authored-by: Jacob Chung <chungjac@amazon.com>

* fix(tests): downgrade mockito to 5.12.0 and mockito-kotlin to 5.4.0 for CI stability Downgrade from mockito-kotlin 6.2.3 to 5.4.0 (latest stable 5.x) and mockito-core from 5.20.0 to 5.12.0 to restore CI build stability without requiring extensive test migration to mockito-kotlin 6.x API. * fix(tests): downgrade mockito-kotlin to 5.4.0 for CI stability Downgrade mockito-kotlin from 6.2.3 to 5.4.0 (latest stable 5.x) to restore CI build stability without requiring extensive test migration to mockito-kotlin 6.x API. Keep mockito-core at 5.20.0.

…me settings (aws#6217) * fix: Handle directory paths in user-configured Node.js runtime settings * fix: fix unit tests cases * fix: Unit test cases --------- Co-authored-by: chungjac <chungjac@amazon.com>

Co-authored-by: chungjac <chungjac@amazon.com>

…straint (aws#6229) Co-authored-by: Aseem sharma <198968351+aseemxs@users.noreply.github.com>

Co-authored-by: David Hasani <davhasan@amazon.com>

* Updating version to 3.103 * Updating SNAPSHOT version to 3.104-SNAPSHOT --------- Co-authored-by: aws-toolkit-automation <>

…mework (aws#6268) * fix build failures from rider failing to resolve test framework * patch

…ots: C:/Program Files/pypy3.11-v7.3.20-win64/python.exe (aws#6273) * fix: windows unit test failure File accessed outside allowed roots: file://C:/Program Files/pypy3.11-v7.3.20-win64/python.exe * r

…values in JetBrains telemetry (aws#6260) * fix(amazonq): adding changelog * fix(amazonq): Fix for incorrect TriggerToResponseLatencyMilliseconds values in JetBrains telemetry --------- Co-authored-by: chungjac <chungjac@amazon.com>

* build: drop support for 243 * fix: remove 2024.3 * fix: FIX_WHEN_MIN_IS_252

…NoClassDefFoundError on startup (aws#6291) * fix(amazonq): adding changelog * fix(amazonq): Fix for incorrect TriggerToResponseLatencyMilliseconds values in JetBrains telemetry * fix: lazy-init languageIds in NodeJsRuntimeGroup to prevent NoClassDefFoundError Fixes aws#6289 NodeJsRuntimeGroup was eagerly initializing languageIds at construction time, which caused JavascriptLanguage to be loaded immediately when the plugin extension point was instantiated at IDE startup. In IDEs where the JavaScript plugin is unavailable (e.g. PyCharm), this resulted in a NoClassDefFoundError crashing the plugin. Making languageIds a lazy delegate defers the class loading until the property is actually accessed, avoiding the crash on startup. --------- Co-authored-by: chungjac <chungjac@amazon.com>

* fix(amazonq): adding changelog * fix(amazonq): Fix for incorrect TriggerToResponseLatencyMilliseconds values in JetBrains telemetry * fix: lazy-init languageIds in NodeJsRuntimeGroup to prevent NoClassDefFoundError Fixes aws#6289 NodeJsRuntimeGroup was eagerly initializing languageIds at construction time, which caused JavascriptLanguage to be loaded immediately when the plugin extension point was instantiated at IDE startup. In IDEs where the JavaScript plugin is unavailable (e.g. PyCharm), this resulted in a NoClassDefFoundError crashing the plugin. Making languageIds a lazy delegate defers the class loading until the property is actually accessed, avoiding the crash on startup. * fix: Adding try catch to catch NoClassDefFoundError --------- Co-authored-by: chungjac <chungjac@amazon.com>

…allback LSP (aws#6280) Co-authored-by: invictus <149003065+ashishrp-aws@users.noreply.github.com>

…n branch (aws#6304) * feat(cloudformation): Add CloudFormation Language Server integration (aws#6188) * feat(cloudformation): add CloudFormation LSP * update imports as per toolkits to toolkit rename * address PR comments on 1/26 * add didConfigurationChange notification to server * revert unintended package-lock.json changes * Add auto-update, manifest caching, hash verification, and legacy Linux support for LSP server * address comments * reduce class scopes * remove unused imports * add ldconfig lookup and binary check fallback for legacy linux * address detekt issues * create extension config, update init params * feat(cloudformation): add CloudFormation tool window, stacks tree view (aws#6215) * feat(cloudformation): add CloudFormation tool window and stacks tree view * remove seperate cfn region picker and subscribe to AwsConnectionManager for region info * address PR comments, no major change - 02/05 * fix(cloudformation): rename properties to fix failing test (aws#6241) * fix(cloudformation): rename properties to fix failing test * use gson serializer to fix detekt issue with PascalCase * feat(cloudformation): add resources exploration node (aws#6236) * Add CloudFormation resources node * Remove duplicated message bundles * gradle check fixes * Fixed imports and nested data classes * fix(cloudformation): persist resource types list (aws#6253) * fix(cloudformation): Skip credential resolution during transient connection states (aws#6252) * feat(cloudformation): Prompt for CloudFormation Language Server telem… (aws#6249) * feat(cloudformation): Prompt for CloudFormation Language Server telemetry opt-in * update changelog and reuse learn more message bundle * revert to using cfn dedicated learn more message * fix(cloudformation): dedupe resource pagination and add load more right click action (aws#6256) * feat(cloudformation): validate template via change set and add actions toolbar (aws#6255) * fix(cloudformation): suppress noisy LSP logMessage notifications from surfacing as balloon popups (aws#6259) * feat(cloudformation): add stack view panel and overview contents (aws#6250) * feat(cloudformation): add semantic versioning and limit server versio… (aws#6262) * feat(cloudformation): add semantic versioning and limit server version for compatibility * use isLatest, remove gh release api * fix(cloudformation): Fix imports and gradle properties (aws#6272) * feat(cloudformation): Add document manager to list available templates * Lint fixes * Addressed comments * Move DocumentMetadata to manager class, remove relative path parsing logs * Use absolute paths on hover, fix folder icon, fix imports * fix(cloudformation): auto focus search bar, allow for entire checkbox row to be selectable (aws#6266) * Merge pull request aws#6265 from Zee2413/lsp-integ-test feat(cloudformation): add cfn lsp integration test * feat(cloudformation): add stack resources panel (aws#6271) * feat(cloudformation): add stack resources panel * Move auto refresh logic into new listener and interface * feat(cloudformation): Add outputs panel to CloudFormation template (aws#6275) * feat(cloudformation): Add outputs panel to CloudFormation template * Addressed comments * Fix merge conflicts and api contract changes * feat(cloudformation): view change set diff and add deployment configu… (aws#6279) * feat(cloudformation): view change set diff and add deployment configurations * revert package lock * add live aware changeset drift in diff view * add titles to tables, rename change set tab, add diff view button * Minor code cleanup and detekt fix * Address PR feedback: 1. Silent catch → Now shows notifyError to the user with the failure reason 2. .get() without timeout → All 5 calls now use get(30, TimeUnit.SECONDS) — existing catch blocks handle TimeoutException 3. Scheduler lifecycle → Added project.isDisposed check at the start of each poll tick, and a MAX_POLL_COUNT of 3600 (1 hour at 1s intervals) to prevent infinite polling * feat(cloudformation): update README with CloudFormation language server features (aws#6283) * feat(cloudformation): Add stack events panel (aws#6277) * feat(cloudformation): Add stack events panel * Add changelog * Fixes * Created shared table panel method, using arn sdk methods * Make hook invocation column conditional, set console links dynamically, fix console icon spacing, fix display messages * Remove unused const * UI tweaks * Make changelog more concise * fix(cloudformation): add Node.js download link to error notification * fix(cloudformation): add extension name and version to the lsp init options * fix(cloudformation): convert cfn-guard settings rule pack to be a checkbox list * feat(cloudformation): add status bar showing CloudFormation deployment operations in-flight (aws#6287) * fix(cloudformation): Start CloudFormation LSP upon toolkit activation (aws#6293) * fix(cloudformation): Restart polling and switch to events panel after executing change set (aws#6290) Co-authored-by: invictus <149003065+ashishrp-aws@users.noreply.github.com> * fix(cloudformation): Update plugin description to include CloudFormation support (aws#6296) * fix(cloudformation): Fix CI (aws#6301) * feat(cloudformation): Add CloudFormation LSP Introduction notification (aws#6303) * fix(cloudformation): add credentials listener to cloudformation tool window * fix(cloudformation): Fix CI for 2025-3 version * fix lsp server shutdown * Add robust handling around cfn lsp server shutdown * Added comments * Move cfn resources into correct xml * Move all cfn lsp resources to correct xml * Remove unnecessary whitespace * Add explicit disposal of server following project close * Modify logging * feat(cloudformation): Add CloudFormation LSP Introduction notification * fix(cloudformation): consolidated change logs (aws#6305) --------- Co-authored-by: aws-toolkit-automation <43144436+aws-toolkit-automation@users.noreply.github.com> Co-authored-by: Zeeshan Ahmed <37942674+Zee2413@users.noreply.github.com> Co-authored-by: Laxman Reddy <141967714+laileni-aws@users.noreply.github.com> Co-authored-by: Zeeshan Ahmed <zeemed@amazon.com> Co-authored-by: invictus <149003065+ashishrp-aws@users.noreply.github.com>

…#6313)

… remove Q and CodeWhisperer (aws#6312)

…6310) * fix(cloudformation): change cloudformation language server path * cleanup legacy dir

Add IDE profile for IntelliJ IDEA 2026.1 (build 261) to resolve plugin incompatibility with the latest IDE release. Key changes: - Add isUnifiedIde() helper to future-proof unified IDE checks (replaces 11 scattered startsWith("2025.3") / contains("253") checks) - Add 2026.1 profile with stable SDK and marketplace plugin versions - Update kotlinx-coroutines to 1.10.2-intellij-1 for 261 - Update Rider build script for rd-gen 2026.1.3 API changes - Handle Code With Me -> Remote Development plugin rename - Handle PyAddSdkPanel removal (moved to src-243-253) - Handle TreeVisitor.Acceptor.accept() nullability change (src-261+) Fixes aws#6324 Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

jacobthompsonramsey · 2026-03-31T17:26:23Z

I'm seeing this issue as well in IntelliJ 2026.1 261*

diadev · 2026-03-31T19:17:51Z

It would be great to get this in for 261* soon. I've come to rely on it for testing in IntelliJ.

warrenonedge · 2026-03-31T19:27:47Z

What is the usual turn around time for these updates? I updated my intellij and now i cant' use the tool for my development.

JustinHarshbarger · 2026-04-01T00:07:04Z

It would be great if we could have a quick turnaround on these plugin issues! The AWS plugins are the only ones I consistently have problems with regarding compatibility after IDEA updates.

mattsnow · 2026-04-01T10:25:30Z

Same issue, this must be one of the most widely used plugins in IntelliJ. A quick fix would be appreciated

devurandom · 2026-04-02T06:11:50Z

Closes: #6323

a1flecke · 2026-04-02T09:51:25Z

Anything else needed to get this over the line?

warrenonedge · 2026-04-02T17:49:56Z

Commenting again in the hopes that the reviewers who have write permissions see this and approve.

chriswangsanata-sm · 2026-04-03T17:04:09Z

Bumping

branrin · 2026-04-03T17:29:30Z

Hi AWS service team has a fix for this in progress and will include it in our release next week to support 2026.1. Thank you for your patience

warrenonedge · 2026-04-06T13:26:20Z

Hi AWS service team has a fix for this in progress and will include it in our release next week to support 2026.1. Thank you for your patience

Any particular target date? Im stuck in the mud ATM.

branrin · 2026-04-06T13:38:21Z

Any particular target date? Im stuck in the mud ATM.

The team is targeting Thursday, April 9 release. It is being treated as high priority so if the fix for this and other issues are fully implemented/validated before then it could be released sooner

warrenonedge · 2026-04-07T13:27:06Z

Any particular target date? Im stuck in the mud ATM.

The team is targeting Thursday, April 9 release. It is being treated as high priority so if the fix for this and other issues are fully implemented/validated before then it could be released sooner

Thanks for the update. Look forward to the push.

databasepanda

looks good to me

choeflake · 2026-04-10T08:26:30Z

Any particular target date? Im stuck in the mud ATM.

The team is targeting Thursday, April 9 release. It is being treated as high priority so if the fix for this and other issues are fully implemented/validated before then it could be released sooner

Is there any update?

branrin · 2026-04-10T13:05:12Z

The team is targeting Thursday, April 9 release. It is being treated as high priority so if the fix for this and other issues are fully implemented/validated before then it could be released sooner

Is there any update?

The team encountered an unexpected issue blocking the release pipeline and is working diligently to resolve. Hoping to get the issue resolved and update released today. Apologies for the delay

ishassan · 2026-04-13T12:15:28Z

The team encountered an unexpected issue blocking the release pipeline and is working diligently to resolve. Hoping to get the issue resolved and update released today. Apologies for the delay

Is there an update 👀 ?

branrin · 2026-04-13T13:54:37Z

The version 4.0 plugin is now officially released for 2025.1, 2025.2, 2025.3, and 2026.1. Again, apologies for the delays with the release. The team will improve processes to avoid issues like this in the future

branrin · 2026-04-13T13:55:17Z

Closing PR as 2026.1 support is now included in plugin version 4.0

hygormartins10 · 2026-04-13T14:57:12Z

Hello, @branrin. Unfortunately, the AWS Core plugin is still showing the error "Incompatible: requires IDE build 253.* or earlier". Do we have a timeframe for fixing this?

branrin · 2026-04-13T15:01:16Z

Hello, @branrin. Unfortunately, the AWS Core plugin is still showing the error "Incompatible: requires IDE build 253.* or earlier". Do we have a timeframe for fixing this?

Core plugin is not required for 2026.1. You can remove it. There should be a notification added with this information within the IDE

laileni-aws and others added 30 commits January 30, 2026 13:41

fix(amazonq): reduce number of calls sent to ui before it is ready (a…

3763698

…ws#6206) * fix: reduce number of calls sent to ui before it is ready * fix(amazonq): fix ci builds --------- Co-authored-by: Manodnya Bhoite <manodnyb@amazon.com>

fix(toolkit): region/credential picker dropdown not closing after sel… (

019321d

aws#6222) * fix(toolkit): region/credential picker dropdown not closing after selection --------- Co-authored-by: Jacob Chung <chungjac@amazon.com>

fix(amazonq): Handle directory paths in user-configured Node.js runti…

2f31681

…me settings (aws#6217) * fix: Handle directory paths in user-configured Node.js runtime settings * fix: fix unit tests cases * fix: Unit test cases --------- Co-authored-by: chungjac <chungjac@amazon.com>

deps: deprecate IDE 243 / GW 252 (aws#6246)

c1f05c2

fix(amazonq): adding changelog (aws#6247)

1881587

Co-authored-by: chungjac <chungjac@amazon.com>

fix(toolkit): remove gson from banned import and add gson version con…

ae9cdee

…straint (aws#6229) Co-authored-by: Aseem sharma <198968351+aseemxs@users.noreply.github.com>

add info banner pointing to ATX (aws#6261)

abf2e0e

Co-authored-by: David Hasani <davhasan@amazon.com>

ci: add missing version bump commits for 3.103 release (aws#6267)

a782582

* Updating version to 3.103 * Updating SNAPSHOT version to 3.104-SNAPSHOT --------- Co-authored-by: aws-toolkit-automation <>

build(253): fix build failures from rider failing to resolve test fra…

ce24ff5

…mework (aws#6268) * fix build failures from rider failing to resolve test framework * patch

build(ci): windows unit test failure File accessed outside allowed ro…

3bec3c0

…ots: C:/Program Files/pypy3.11-v7.3.20-win64/python.exe (aws#6273) * fix: windows unit test failure File accessed outside allowed roots: file://C:/Program Files/pypy3.11-v7.3.20-win64/python.exe * r

Updating version to 3.104

cf48c44

Updating SNAPSHOT version to 3.105-SNAPSHOT

811197e

build: drop support for 243 (aws#6248)

800f3e0

* build: drop support for 243 * fix: remove 2024.3 * fix: FIX_WHEN_MIN_IS_252

Updating version to 3.105

8c3e864

Updating SNAPSHOT version to 3.106-SNAPSHOT

d3451ee

feat(amazonq): bundle stripped indexing folder for @file support in f…

8db5d24

…allback LSP (aws#6280) Co-authored-by: invictus <149003065+ashishrp-aws@users.noreply.github.com>

Updating version to 3.106

3950e54

Updating SNAPSHOT version to 3.107-SNAPSHOT

a68a066

fix(cloudformation): modify notification popup title and actions (aws…

d98f436

…#6313)

Updating version to 3.107

b7d2f71

Updating SNAPSHOT version to 3.108-SNAPSHOT

173d2ec

fix(cloudformation): update marketplace docs to highlight cfn lsp and…

96b6c73

… remove Q and CodeWhisperer (aws#6312)

fix(cloudformation): change cloudformation language server path (aws#…

1b68f77

…6310) * fix(cloudformation): change cloudformation language server path * cleanup legacy dir

fix(cloudformation): fix platform detection for linux (aws#6315)

d9eb940

a1flecke requested review from a team as code owners March 31, 2026 14:11

Doc94 mentioned this pull request Mar 31, 2026

Incompatible with IntelliJ IDEA 2026.1 EAP #6276

Open

cyrilcolinet approved these changes Apr 1, 2026

View reviewed changes

hygormartins10 approved these changes Apr 1, 2026

View reviewed changes

devurandom mentioned this pull request Apr 2, 2026

Latest version of AWS Core & Toolkit are incompatible with IntelliJ IDEA 2026.1 #6323

Closed

databasepanda approved these changes Apr 9, 2026

View reviewed changes

eliseong force-pushed the main branch from 70e513c to 4af1aa5 Compare April 9, 2026 17:50

branrin closed this Apr 13, 2026

Conversation

a1flecke commented Mar 31, 2026

Summary

Changes

Known limitations

Testing

Test plan

Uh oh!

jacobthompsonramsey commented Mar 31, 2026

Uh oh!

diadev commented Mar 31, 2026

Uh oh!

warrenonedge commented Mar 31, 2026

Uh oh!

JustinHarshbarger commented Apr 1, 2026

Uh oh!

mattsnow commented Apr 1, 2026

Uh oh!

devurandom commented Apr 2, 2026

Uh oh!

a1flecke commented Apr 2, 2026

Uh oh!

warrenonedge commented Apr 2, 2026

Uh oh!

chriswangsanata-sm commented Apr 3, 2026

Uh oh!

branrin commented Apr 3, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

warrenonedge commented Apr 6, 2026

Uh oh!

branrin commented Apr 6, 2026

Uh oh!

warrenonedge commented Apr 7, 2026

Uh oh!

databasepanda left a comment

Choose a reason for hiding this comment

Uh oh!

choeflake commented Apr 10, 2026

Uh oh!

branrin commented Apr 10, 2026

Uh oh!

ishassan commented Apr 13, 2026

Uh oh!

branrin commented Apr 13, 2026

Uh oh!

branrin commented Apr 13, 2026

Uh oh!

hygormartins10 commented Apr 13, 2026

Uh oh!

branrin commented Apr 13, 2026

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

20 participants

branrin commented Apr 3, 2026 •

edited

Loading