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Amazon::API Release Notes

2.2.2

Bug Fix

Serializer::serialize - malformed ISO 8601 timestamps with sub-second precision.

Two bugs in the nanosecond timestamp formatting path:

  1. '%Y-%m-%dT%H:%M:%S.%%d%z' - %%d in a strftime format string produces the literal two characters %d, not a formatted value. The resulting timestamp contained a literal %d substring.

  2. $data .= sprintf '.%03d', $nanoseconds was appended after %z (the timezone offset), producing 2026-03-25T15:23:05+0000.891 instead of the correct 2026-03-25T15:23:05.891+0000.

Fixed by splitting the strftime call so fractional seconds are inserted before the timezone:

$data  = strftime( '%Y-%m-%dT%H:%M:%S', localtime $epoch );
$data .= sprintf '.%03d', $nanoseconds;
$data .= strftime( '%z', localtime $epoch );

This affected any AWS API response that includes a timestamp shape with sub-second precision - notably ECR imagePushedAt, Lambda LastModified, and CloudWatch event timestamps.

Other Changes

Release notes for 2.2.1 added retroactively to release-notes/release-notes-2.2.1.md. Previous release notes files relocated from project root into release-notes/ subdirectory. release-notes.md symlink added pointing to current release.

2.2.1

See release-notes/release-notes-2.2.1.md.