Software end-of-life date changes — which dates moved and what they were before

A change log of software end-of-life and end-of-support dates across 462 products, built by diffing the endoflife.date API between snapshots: for each changed date, the product, release cycle, which field moved, the old value and the new value. Answers 'did the Python 3.9 EOL date change?', 'which Node.js support dates were extended this month?', and 'what EOL dates moved in July 2026?' — the question shape nobody publishes. endoflife.date tracks current state; endoflife.ai publishes a free monthly digest of what is critical now; neither publishes the before-and-after diff. New product additions are also captured. This is a parser case: the API returns structured JSON, no model supplies values.

Recent changes

• 2026-09-1436 records added or updated
• 2026-09-08351 records added or updated
• 2026-09-032 records added or updated
• 2026-09-0269 records added or updated
• 2026-08-3179 records added or updated

Full change history · Atom feed

The data

Showing the first 400 of 745 records. Every record has its own page, with its source and the quoted line that states it; these list the rest.

• Records 1–4005.0 · apache-groovy · eoasFrom · 2026-08-29 … gpt-5.1-codex-mini · openai-api-models · eoasFrom · 2026-09-08
• Records 401–745gpt-5.2-chat-latest · openai-api-models · eoasFrom · 2026-09-08 … 18.10 · visual-studio · releaseDate · 2026-09-14

Where this came from

Every record above links the page it was taken from and quotes the sentence that states it. These are the 107 sources this dataset was assembled from.

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Machine-readable

• data.jsonThe whole dataset — every record with its source URL and source quote.
• Open Knowledge Format bundleOne JSON object per line — every record's frontmatter and quoted span exactly as it is held here, in one fetch.
• data.csvThe same records as one flat table, for a spreadsheet or a dataframe. The last four columns are the source URL, the quoted sentence it was read from, the date we last checked it, and which columns are our reading rather than the page's words.
• changes.xmlAtom feed of what changed and when — poll this instead of re-fetching the dataset. Also as changes.json.
• What changedThe same change history as a readable page — each date, what moved, and the records' current state.
• How this is made and checkedWhat "verified against source" does and does not mean.

From your own code

Same records, same quotes, without scraping the page: refsource is on PyPI and npm. Each value comes back carrying the URL it was read from and the sentence on that page that states it — .source and .quote sit on the value itself rather than in a side channel, so the checking step is available instead of skipped.

pip install refsource
refsource lookup software-eol-change-feed product=apache-groovy

npx -y refsource lookup software-eol-change-feed product=apache-groovy

Set your AI assistant up to use this

Two files and no account. Put this in .mcp.json at the root of your project — Claude Code, Cursor, Windsurf, VS Code and Codex all read that file — and your assistant can look this dataset up instead of recalling it. The server is remote, keyless and read-only.

{
  "mcpServers": {
    "referencesource": {
      "type": "http",
      "url": "https://referencesource.org/mcp"
    }
  }
}

Add to Cursor · or, on the command line: claude mcp add --transport http referencesource https://referencesource.org/mcp --scope project

Then one line in the project's CLAUDE.md or AGENTS.md, so the assistant knows when to reach for it:

When a question needs "Software end-of-life date changes — which dates moved and what they were before", call the referencesource MCP server at https://referencesource.org/mcp (tool `search_records`, dataset_slug `software-eol-change-feed`) instead of answering from memory — every record it returns carries its source URL and a verbatim quote from that page.

What each tool does, and the servers built over single registers: Connect your AI assistant.

745 records. last verified against source 2026-09-14. due for re-check by 2026-09-28.

Licence. MIT (source: endoflife.date, community-maintained)