IMPORTANT: This post has been superseded. This breaking change has been consolidated with two others into a single post, and the effective date is now July 17, 2026. Please refer to the updated Discuss post for the up to date details. The information below is retained for reference only.
Old discuss post
HEREDOC syntax (\`<<\`)
Illegal characters in job names
Unrecognized keys on job definitions
\`branches:\` on job definitions
Unsupported keys on Docker image definitions
\`working-directory\` vs \`working_directory\`
\`resource_class\` inside \`machine:\` executor
Pipeline parameter syntax
\`name:\` key on jobs
`CIRCLE_COMPARE_URL` not available in v2.1 (click for more details)
1 post - 1 participant
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| # | Наименование новости | Тональность | Информативность | Дата публикации |
|---|---|---|---|---|
| 1 | (Breaking Change) Undeclared Parameters Will Fail Config Compilation | 0 | 12.74 | 08-06-2026 |
| 2 | Breaking Changes: Config Compilation Updates — September 21, 2026 | 0 | 14.42 | 11-06-2026 |
| 3 | [Breaking Change] Regex Engine Update for Config | 0 | 13.49 | 28-05-2026 |
| 4 | CircleCI build policy enforcement - but no ability to change it without service tier upgrade? | 0 | 6.54 | 20-05-2026 |
| 5 | Intermittent pipeline inconsistencies when running parallel jobs with shared dependencies | 0 | 7.54 | 19-06-2026 |
| 6 | Ubuntu 24.04 infrastructure upgrade for Docker Jobs | 0 | 10.06 | 19-03-2026 |
| 7 | Boolean parameters as environment variables | 0 | 5.83 | 20-08-2026 |
| 8 | Changes to Unregistered User Billing on Committed Plans | 0 | 7.64 | 09-03-2026 |
| 9 | Customise pipelines vie | 0 | 19.59 | 09-08-2026 |
| 10 | Post Incident Report: Oct 6, 2026 - Delays in pipelines, workflows, UI data, and notifications | 0 | 12.35 | 07-10-2026 |