The Chapel Parallel Programming Language

Release Note Archives

• Chapel versions 1.33 and 2.0:

  We've recently started shifting more of our release notes content from this page to the Chapel blog. In addition to the traditional slide decks below, be sure to check out these blog posts for more information about the Chapel 1.33 and 2.0 releases:

  • Announcing Chapel 1.33!
  • Changes to Chapel 2.0 Since its First Release Candidate
  • Chapel 2.0: Scalable and Productive Computing for All
  • Supercharged Chapel Editor Support

  Here are the more traditional slide decks:

  • Language Improvements
  • Library Improvements
  • Compiler and Tool Updates
  • Runtime / Portability / Performance
  • Proposed Priorities for the Next Six Months
• Chapel versions 1.31 and 1.32:
  • Language Improvements
  • Library Improvements
  • Compiler / Runtime / Portability Improvements
  • SS-11 / IB Performance Status
  • GPU Support
  • Dyno Updates
  • Proposed Priorities for the Next Six Months
• Chapel versions 1.29.0 and 1.30.0:
  • Language Improvements
  • Library Improvements
  • Compiler, Performance, and Packaging
  • GPU Support
  • Dyno Updates
  • Proposed Priorities for the Next Six Months
• Chapel versions 1.27.0 and 1.28.0:
  • Language Improvements
  • Library Improvements
  • Compiler, Performance, and Tool Improvements
  • Ongoing Efforts: GPU Support
  • Ongoing Efforts: Dyno Updates
  • Proposed Priorities for Next Six Months
• Chapel versions 1.25.1 and 1.26.0:
  • Language Improvements
  • Library Improvements
  • Documentation Improvements
  • Compiler Improvements
  • Performance Optimizations
  • Ongoing Efforts
  • Proposed Priorities for the Next Six Months
• Chapel version 1.25.0:
  • Highlights
  • Language Improvements
  • Library Improvements
  • Compiler and Tool Improvements
  • Runtime Improvements
  • Performance Optimizations
  • Ongoing Efforts
  • Proposed Priorities for Chapel 1.26
• Chapel version 1.24.0 / 1.24.1:
  • Language and Library Improvements
  • Implementation Improvements
  • Performance Optimizations
  • Ongoing Efforts
  • Proposed Priorities for Chapel 1.25
  • InfiniBand Optimizations
  • Ongoing Efforts: First-Class Functions and Closures
• Chapel version 1.23
  • Language Improvements
  • Library Improvements
  • Compiler and Tool Improvements
  • Performance Optimizations
  • Ongoing Efforts
  • Proposed Priorities for Chapel 1.24
• Chapel version 1.21 / 1.22
  • Language Improvements
  • Library Improvements
  • Interoperability Improvements
  • Benchmarks and Performance Optimizations
  • User Application Optimizations
  • Ongoing Efforts
  • Proposed Priorities for Chapel 1.23
• Chapel version 1.20
  • Language Improvements
  • Library Improvements
  • Array Improvements
  • Compiler and Tool Improvements
  • Portability Improvements
  • Benchmarks and Performance Optimizations
  • Ongoing Efforts
  • Proposed Priorities for Chapel 1.21
• Chapel version 1.19
  • Language Improvements
  • Library and Array Improvements
  • Portability and Interoperability Improvements
  • Compiler and Tool Changes
  • Benchmarks and Performance Optimizations
  • Performance Summary
  • Proposed Priorities for Chapel 1.20
• Chapel version 1.18
  • Language Improvements
  • Compiler / Tools
  • Library Additions and Improvements
  • Portability
  • Benchmarks and Performance Optimizations
  • Performance Results
  • Ongoing Efforts
  • Proposed Priorities for Chapel 1.19
• Chapel version 1.17
  • Language Improvements
  • Compiler / Tools
  • Library Improvements
  • Array, Domain, and Domain Map Improvements
  • Benchmarks and Performance Optimizations
  • Performance Results
  • Portability
  • Documentation Changes
  • Ongoing Efforts
  • Proposed Priorities for Chapel 1.18
• Chapel version 1.16
  • New Tools and Tool Improvements
  • Language Improvements
  • Library Improvements
  • Array, Domain, and Domain Map Improvements
  • Compiler / Implementation
  • Locale Models
  • Runtime and Third-party Changes
  • Benchmarks and Performance Optimizations
  • Performance Results
  • Portability and Packaging
  • Proposed Priorities for Chapel 1.17
• Chapel version 1.15
  • Language Improvements
  • Language Improvements (Work-in-Progress)
  • Library Improvements
  • Improvements to Arrays and Domain Maps
  • Compiler / Implementation
  • Locale Model Improvements
  • Portability and Packaging
  • Runtime and Third-Party Improvements
  • Performance Optimizations
  • Benchmark Improvements
  • Performance Results
  • Documentation and Example Codes
  • Proposed Priorities for Chapel 1.16
• Chapel version 1.14
  • Standard Library Improvements
  • Domain Map Improvements
  • Documentation Improvements
  • Language and Compiler Improvements
  • Generated Code Improvements
  • Runtime Improvements
  • Performance Optimizations
  • Benchmark Improvements
  • Performance Results
  • Packaging and Configuration
  • Tools
  • Memory Leaks
  • Ongoing Efforts
  • Other Notable Changes
  • Priorities for Chapel 1.15
• Chapel version 1.13
  • Language Improvements
  • Standard Library Improvements
  • Documentation Improvements
  • Compiler Improvements
  • Runtime and Third-Party Improvements
  • Portability and Platform-Specific Work
  • Benchmarks, Performance Optimizations, and Memory Leaks
  • Performance Results
  • Ongoing Efforts
  • Other Miscellaneous and Notable Changes
  • Priorities for version 1.14
• Chapel version 1.12
  • Language Improvements
  • Standard Library Improvements
  • Tool Updates
  • Documentation Improvements
  • Performance Optimizations
  • Benchmarks and Performance Results
  • Process Improvements
  • Ongoing Efforts
  • Other Miscellaneous and Notable Changes
  • Priorities for version 1.13
• Chapel version 1.11
  • Language and Compiler Improvements
  • Tool Improvements
  • Documentation Improvements
  • Standard Library and Interoperability Improvements
  • Runtime Library Improvements
  • Performance Optimizations and Generated Code Improvements
  • Benchmarks and Performance Results
  • Other Miscellaneous Notable Changes
  • Priorities for version 1.12
• Chapel version 1.10
  • Language Improvements
  • Standard Library Improvements
  • Runtime Library Improvements
  • Benchmark Improvements
  • Performance Optimizations
  • Portability and Third-party Improvements
  • Compiler and Generated Code Improvements
  • Performance Results
  • Other Miscellaneous Notable Changes
  • Top Priorities for version 1.11
• Chapel version 1.9
  • Language Improvements
  • Improved Support for Locale Models
  • Performance / Memory Improvements
  • Benchmark Improvements
  • Runtime Improvements
  • Multilocale Performance Trends
  • Additional Progress and Status