0.12.0 released

Wednesday, March 29, 2017 | Posted in Release

Pony version 0.12.0 has been released. It’s available via all the usual channels. This is a recommended update as PR #1768 fixed a memory related issue that could result in nastiness.

The release also features a breaking change in the form of PR #1741 which implemented the “Array as Sequences” RFC. It changes the syntax for creating arrays from: ['a', 'b', 'c'] to: ['a'; 'b'; 'c'].



  • Don’t ignore buffer length when printing (PR #1768)
  • Ifdef out ANSITerm signal handler for SIGWINCH (PR #1763)
  • Fix build error on 32 bits systems (PR #1762)
  • Fix annotation-related compiler assertion failure (issue #1751) (PR #1757)
  • Improve packaged Linux binary performance (PR #1755)
  • Fix false positive test failure on 32 bits (PR #1749)


  • Support XCode 8.3 and LLVM 3.9 (PR #1765)



Sean T. Allen

Sean is a member of the Pony core team. His turn-ons include programming languages, distributed computing, Hiwatt amplifiers, and Fender Telecasters. His turn-offs include mayonnaise, stirring yogurt, and sloppy code. He is one of the authors of Storm Applied, and VP of Engineering at Wallaroo Labs.