Feature #6163

Remove syck YAML extension

Added by Eric Hodel almost 5 years ago. Updated over 4 years ago.

Target version:


The syck extension should be removed for the following reasons:

Syck only supports YAML 1.0

Syck is not YAML 1.0 compliant.

Syck is not easy to maintain, and many of the bugs existing in it have not been fixed.

Psych uses libyaml for YAML parsing of 1.0 and 1.1 documents.

The libyaml parser is maintained by a third party and shared by many projects so we benefit from bug fixes from a broad user base.

It is too hard to type "Syck" vs "Psych" I often type "Sych" or "Psyck" (joke).

Related issues

Related to Ruby trunk - Feature #2340: Removing YAML/Syck Rejected 11/06/2009
Related to Ruby trunk - Bug #8344: Status of Psych and Syck Closed 04/28/2013


#1 Updated by Shyouhei Urabe almost 5 years ago

  • Status changed from Open to Assigned

#2 [ruby-core:47407] Updated by Vit Ondruch over 4 years ago

Seems that in r36786 the syck was dropped, but its directory structure remains in the SCM. It should be probably removed as well. Thank you.

#3 [ruby-core:47458] Updated by sorah Shota Fukumori over 4 years ago

  • Status changed from Assigned to Closed

Also available in: Atom PDF