v1.2

[tianpf]

• Added dynamic buffer algorithm, which can support buffer algorithms with different widths for lines.
• Optimized the union algorithm and realized union support for non convex polygon.
• Solved the Issue issue.

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This discussion was created from the release v1.2.

[philhug]

v1.2 was tagged as v.1.2 instead of v.1.2, this prevents go mod from picking up the latest version.
You might want to retag the release.