Easiest way to migrate from GPG 1.4.11 to 2.x?

[Faramir]

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Hello,
      I've been a very happy user of 1.4.x branch for some years. Now
I'm thinking about moving to 2.x, which would mean GPG4Win. How do I
migrate my keyrings to 2.x? Simple copy/paste?

      Best Regards
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