v6.14.2-release

[pengfeiye]

License

I confirm that this contribution is made under the terms of the MIT license and that I have the authority necessary to make this contribution on behalf of its copyright owner.

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Note

Release v6.14.2

• Update __VERSION__ to 6.14.2 and current_version in .bumpversion.cfg
• Update CHANGELOG.md with v6.14.2 entry noting fix: encode JSON as UTF-8 bytes to preserve special characters

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