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Jac-Scale Release Notes#

This document provides a summary of new features, improvements, and bug fixes in each version of Jac-Scale. For details on changes that might require updates to your existing code, please refer to the Breaking Changes page.

jac-scale 0.1.4 (Unreleased)#

  • Hot fix: call state: Normal spawn calls inside API spawn calls supported.

jac-scale 0.1.3 (Latest Release)#

  • Streaming Response Support: Streaming responses are supported with walker spawn calls and function calls.

  • Webhook Support: Added webhook transport for walkers with HMAC-SHA256 signature verification. Walkers can be configured with @restspec(webhook=True) to receive webhook requests at /webhook/{walker_name} endpoints with API key authentication and signature verification.

  • Storage Abstraction: Introduced a pluggable storage abstraction layer for file operations.

  • Abstract Storage interface with standard operations: upload, download, delete, list, copy, move, get_metadata
  • Default LocalStorage implementation in jaclang.runtimelib.storage
  • Hookable store(base_path, create_dirs) builtin that returns a configured Storage instance

  • Configure via jac.toml [storage] section or JAC_STORAGE_PATH / JAC_STORAGE_CREATE_DIRS environment variables

  • jac destroy command wait till fully removal of resources

  • Internal: Explicitly declared all postinit fields across the codebase.

PyPI Installation by Default#

Kubernetes deployments now install Jaseci packages from PyPI by default instead of cloning the entire repository. This provides faster startup times and more reproducible deployments.

Default behavior (PyPI installation):

jac start app.jac --scale

Experimental mode (repo clone - previous behavior):

jac start app.jac --scale --experimental

New CLI Flag: --experimental#

Added --experimental (-e) flag to jac start --scale command. When enabled, falls back to the previous behavior of cloning the Jaseci repository and installing packages in editable mode. Useful for testing unreleased changes.

Version Pinning via plugin_versions Configuration#

Added plugin_versions configuration in jac.toml to pin specific package versions:

[plugins.scale.kubernetes.plugin_versions]
jaclang = "0.1.5"      # or "latest"
jac_scale = "0.1.1"    # or "latest"
jac_client = "0.1.0"   # or "latest"
jac_byllm = "none"     # use "none" to skip installation (will insall elvant byllm version)

When not specified, defaults to "latest" for all packages.

Enhanced restspec Decorator#

The @restspec decorator now supports custom HTTP methods and custom endpoint paths for both walkers and functions.

  • Custom Methods: Use method=HTTPMethod.GET, method=HTTPMethod.PUT, etc.
  • Custom Paths: Use path="/my/custom/path" to override the default routing.

jac-scale 0.1.1#

jac-scale 0.1.0#

Initial Release#

First release of Jac-Scale - a scalable runtime framework for distributed Jac applications.

Key Features#

  • Distributed runtime with load balancing and service discovery
  • Intelligent walker scheduling across multiple nodes
  • Auto-partitioned graph storage
  • Performance monitoring and auto-scaling
  • YAML-based configuration
  • Username-based user management for authentication
  • Custom Response Headers: Configure custom HTTP response headers via [environments.response.headers] in jac.toml. Useful for security headers like COOP/COEP (required for SharedArrayBuffer support in libraries like monaco-editor).

Installation#

pip install jac-scale