etseidl commented on code in PR #258:
URL: https://github.com/apache/parquet-format/pull/258#discussion_r1628760856


##########
CONTRIBUTING.md:
##########
@@ -29,3 +29,78 @@ Recommendations and requirements for how to best contribute 
to Parquet. We striv
 ### License
 By contributing your code, you agree to license your contribution under the 
terms of the APLv2:
 https://github.com/apache/parquet-format/blob/master/LICENSE
+
+### Additions/Changes to the Format
+
+The general steps for adding features to the format are as follows:
+
+1. Discuss changes on on the developer mailing list ([email protected]). 
 Often times it is helpful to link to a draft pull request to make the 
discussion concrete. This step is complete when there lazy consensus.
+
+2. One a change has lazy consensus two implementations of the feature
+demonstrating interopability must also be provided.  One implementation MUST 
be [parquet-java](http://github.com/apache/parquet-java).  It is preferred that 
the second implementation be [parquet-cpp](https://github.com/apache/arrow) or 
[parquet-rs](https://github.com/apache/arrow-rs), however at the discretion of 
the PMC any
+open source Parquet implementation may be acceptable.

Review Comment:
   Thank you @emkornfield, the addition looks great to me.



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