Welcome

This is the landing page for the Scala Improvement Process.

This process has been changed since the old SID (Scala Improvement Document) days, however the old completed SID documents are available in the completed section of the SIP list.

Pending SIPs

• SIP-23 - Literal-based singleton types ( Jun 2014 )
• SIP-22 - Async ( Jun 2013 )
• SIP-21 - Spores ( Jun 2013 )
• SIP-20 - Improved Lazy Vals Initialization ( May 2013 )
• SIP-19 Implicit Source Locations ( Mar 2012 ) Not Accepted
• SIP-16 - Self-cleaning Macros ( Mar 2012 ) Postponed
• SIP-12 Uncluttering Scala’s syntax for control structures. ( Oct 2011 ) Postponed