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Roundtrip not possible when using identical array twice

Status: Open.

#800 In ruby/psych;

· NobodysNightmare opened on Jun 8, 2026

Warning after install gem psych 5.4.0

Status: Open.

#797 In ruby/psych;

· Sega100500 opened on Jun 2, 2026

Custom domain types don't deserialize properly from anchors

Status: Open.

#786 In ruby/psych;

· josh-wise-proof opened on Mar 24, 2026

Psych.safe_load internal convert matching scaler Strings that looks like timestamps to class Time which isn't allowed as deserialization class

Status: Open.

#721 In ruby/psych;

· torstenfohrer opened on Apr 2, 2025

Bug: aliases & nested keys unexpected behavior

Status: Open.

#714 In ruby/psych;

· WoutDev opened on Feb 2, 2025

Missing support for "YAML Schema" (spec 1.2)

Status: Open.

#703 In ruby/psych;

· ulidtko opened on Dec 27, 2024

Inconsistent quoting behavior when serializing strings starting with zero

Status: Open.

#701 In ruby/psych;

· jefmathiot opened on Dec 20, 2024

Toplevel [] method for YAML?

Status: Open.

#679 In ruby/psych;

· rubyFeedback opened on Aug 1, 2024

Some strings that look like date/timestamps are not quoted when dumped

Status: Open.

#676 In ruby/psych;

· notEthan opened on Jul 15, 2024

Psych::Nodes::Scalar::LITERAL ignored in encode_with?

Status: Open.

#673 In ruby/psych;

· akunszt opened on Jun 26, 2024

Serialisation of invalid dates is incorrect (maybe?)

Status: Open.

#672 In ruby/psych;

· KJTsanaktsidis opened on Jun 24, 2024

Preserve quote style while changing a YAML file

Status: Open.

#671 In ruby/psych;

· marselmustafin opened on May 24, 2024