feat!: Require Go 1.25+ (upgrade from Go 1.12)

[CybotTM]

Summary

The minimum required Go version has been upgraded from Go 1.12 to Go 1.25, enabling modern language features and better performance.

Why Go 1.25?

Language Features Used

• Generic min/max builtins (Go 1.21+): Cleaner code for comparisons
• slices package (Go 1.21+): slices.SortFunc, slices.DeleteFunc for cleaner collection operations
• slog package (Go 1.21+): Structured logging adapter
• sync/atomic types (Go 1.19+): Type-safe atomic operations

Benefits

1. Performance: Modern Go runtime optimizations
2. Security: Latest security patches and hardening
3. Maintainability: Cleaner code using modern idioms
4. Tooling: Better IDE support and linting

Migration

Check Your Go Version

go version
# Must show go1.25 or higher

Update Your Project

# Update go.mod
go mod edit -go=1.25

# Update dependencies
go mod tidy

CI/CD Updates

Update your CI configuration to use Go 1.25+:

# GitHub Actions
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/setup-go@v5
        with:
          go-version: '1.25'

Version History

Release	Minimum Go
robfig/cron v3	Go 1.12
netresearch/go-cron v0.5.0	Go 1.25

Related

• Part of v0.5.0 release
• Implemented in PR feat: modernize fork with panic fixes, DST handling, and CI #1

[CybotTM]

Documented and released in v0.5.0. This issue was created retroactively for release notes documentation.