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middleman-s3_sync 4.6.3 released

I’ve just released version 4.6.3 of middleman-s3_sync, a gem that synchronizes Middleman-built websites to Amazon S3.

This is a maintenance release that addresses a dependency issue. Thanks to Chad Wilson for identifying and fixing the problem in PR #165.

What Changed

The map gem, a dependency of middleman-s3_sync, had been stable at version 6.6.0 for about a decade. Recently, Ara unexpectedly released version 8.x, which introduced breaking changes that caused installation failures.

This release locks the map dependency to version 6.6.0 to ensure stable installations until the compatibility issues with the newer version can be resolved.

Upgrading

To upgrade to the latest version, update your Gemfile:

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gem 'middleman-s3_sync', '~> 4.6.3'

Then run:

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bundle update middleman-s3_sync

As always, the source code is available on GitHub, and the gem is available on RubyGems.

 |  Comments  |  Jan 3, 2026