Claude Code Changelog
[!NOTE] This archive takes some time and money (server, tokens) to run.
I’d appreciate any support – a free follow on X or chipping in a few bucks.
Unofficial, community-maintained tracking of Claude Code prompt and feature-flag evolution across releases.
What's Tracked
cc-prompt.md– legacy compatibility file per tagcc-flags.md– legacy compatibility file per tagsystem-prompts/*.md– extracted prompt artifacts grouped by category (see indeces)meta/flags.md,meta/metadata.md,meta/cli-surface.md,meta/prompt-stats.md– derived metadata- annotated tags (
vX.Y.Z) and GitHub releases for historical navigation
How to Read This Repository
- Pick two tags and open compare view:
https://github.com/marckrenn/claude-code-changelog/compare/v2.1.44...v2.1.45#files_bucket
- Use
system-prompts/for per-file prompt artifacts. - Use
meta/for structured summaries and aggregate metrics. - Use
Init/Last editcolumns as lifecycle hints for each prompt artifact. - For deep full-history research, point a coding agent at this repo directly. GitHub Copilot on github.com is currently limited for broad historical search/analysis.
Data Quality & Interpretation Notes
- Token totals and per-file counts are estimates.
- Tokenization can vary by model/tokenizer/runtime; small differences are expected.
- Aggregate totals are useful directional signals.
- Estimated LOC is derived from a prettified bundle line count and is only an approximation.
- Prompt files can contain near-duplicates or intentionally duplicated variants.
- File names can change across versions (renames/splits/merges), even when content lineage continues.
- A single conceptual prompt can appear under multiple files in some releases.
- Compare statistical deltas with raw diffs before drawing strong conclusions.
What Powers @ClaudeCodeLog
This repo is the backbone of the @ClaudeCodeLog X account, which automatically:
- Detects new Claude Code releases
- Extracts prompts and feature flags
- Generates structured diff summaries
- Publishes threaded updates with focused diff links and screenshots
Credits & Inspiration
- Piebald-AI/claude-code-system-prompts – inspiration for full prompt tracking
- cchistory – prompt extraction foundation
- How cchistory works – technical deep-dive
- Claude Code Documentation
- Claude Code on npm
System Prompts Index
- Total prompt files: 54
- By tokens
- By init (newest first)
- By last edit (newest first)