🚩 2.1.0

Released February 21, 2026

A minor release with a significant performance improvement, new features for working with sample data and placeholders, and several bug fixes.

🚀 New features

• Named sample access — access CSV and JSON sample data by column name in templates (e.g., sample.column_name instead of sample[0]).
• Placeholder support in Studio — plugin config forms in Eventum Studio now accept ${params.*} and ${secrets.*} placeholders.

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⚡ Performance

• Timezone handling — migrated from pytz to Python's built-in zoneinfo module, resulting in up to 2x faster event producing.

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🐛 Bug fixes

• Missing dataset headers — CSV and JSON samples without headers now get automatically generated default column names.
• YAML comments in configs — full-line YAML comments no longer break config loading when used with template variables.
• File output plugin — fixed file not being properly closed before reopening.
• Heterogeneous JSON samples — samples with inconsistent keys across records are now handled correctly.
• Stdout output plugin — fixed a platform-specific bug by switching from writelines() to write().

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🧪 Testing

• Expanded test coverage for placeholder support, sample data handling, config loading, and API model validation.

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📝 Other changes

• Added Eventum Improvement Proposals document.
• Formatted default values in plugin parameter schemas for better readability.